https://de.wikipedia.org/w/index.php?action=history&feed=atom&title=Value_Object
Value Object - Versionsgeschichte
2025-06-05T17:56:14Z
Versionsgeschichte dieser Seite in Wikipedia
MediaWiki 1.45.0-wmf.3
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=253527869&oldid=prev
TaxonKatBot: Bot: Kategorie:Software umbenannt in Kategorie:Software (Thema): laut Disk
2025-02-21T06:25:04Z
<p>Bot: <a href="/wiki/Kategorie:Software" title="Kategorie:Software">Kategorie:Software</a> umbenannt in <a href="/wiki/Kategorie:Software_(Thema)" title="Kategorie:Software (Thema)">Kategorie:Software (Thema)</a>: laut <a href="/wiki/Wikipedia_Diskussion:Redaktion_Informatik#Kategorie:Software" title="Wikipedia Diskussion:Redaktion Informatik">Disk</a></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 21. Februar 2025, 08:25 Uhr</td>
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TaxonKatBot
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=187121613&oldid=prev
Dab0015: Imports hinzugefügt um das Beispiel direkt lauffähig zu machen
2019-04-01T07:39:20Z
<p>Imports hinzugefügt um das Beispiel direkt lauffähig zu machen</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 1. April 2019, 09:39 Uhr</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>import java.math.BigDecimal;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>import java.util.Currency;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>import java.util.Objects;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>public final class Money {</div></td>
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Dab0015
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=187029911&oldid=prev
2003:E9:D715:4B00:412C:27A0:DDDA:A201: /* Beispiel (Java) */
2019-03-28T19:18:23Z
<p><span class="autocomment">Beispiel (Java)</span></p>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public Money(BigDecimal amount, Currency currency) {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> if (amount == null || currency == null) throw new IllegalArgumentException("Amount and Currency must not be null");</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> Objects.requireNonNull(currency, "currency should be not null");</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.amount = amount;</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.amount = amount;</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.currency = currency;</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public <ins style="font-weight: bold; text-decoration: none;">BigDecimal</ins> getAmount() {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.amount;</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public Money add(Money other) {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> if (other == null || other.currency != currency) throw new IllegalArgumentException("Can't add " + other);</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> return new Money(amount<ins style="font-weight: bold; text-decoration: none;">.add(</ins>other.amount<ins style="font-weight: bold; text-decoration: none;">)</ins>, currency);</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> @Override</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(<ins style="font-weight: bold; text-decoration: none;">Object</ins> <ins style="font-weight: bold; text-decoration: none;">obj</ins>) {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <del style="font-weight: bold; text-decoration: none;">return</del> (<del style="font-weight: bold; text-decoration: none;">other</del> <del style="font-weight: bold; text-decoration: none;">!</del>= null <del style="font-weight: bold; text-decoration: none;">&&</del> <del style="font-weight: bold; text-decoration: none;">amount.equals</del>(<del style="font-weight: bold; text-decoration: none;">other.amount</del>) <del style="font-weight: bold; text-decoration: none;">&&</del> <del style="font-weight: bold; text-decoration: none;">currency</del>.<del style="font-weight: bold; text-decoration: none;">equals</del>(<del style="font-weight: bold; text-decoration: none;">other.currency</del>))<del style="font-weight: bold; text-decoration: none;">;</del></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <ins style="font-weight: bold; text-decoration: none;">if</ins> (<ins style="font-weight: bold; text-decoration: none;">obj</ins> <ins style="font-weight: bold; text-decoration: none;">=</ins>= null <ins style="font-weight: bold; text-decoration: none;">||</ins> <ins style="font-weight: bold; text-decoration: none;">getClass</ins>() <ins style="font-weight: bold; text-decoration: none;">!=</ins> <ins style="font-weight: bold; text-decoration: none;">obj</ins>.<ins style="font-weight: bold; text-decoration: none;">getClass</ins>())</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> Money other = (Money) obj;</div></td>
</tr>
<tr>
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<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> return amount.equals(other.amount) && currency.equals(other.currency);</div></td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}</div></td>
</tr>
</table>
2003:E9:D715:4B00:412C:27A0:DDDA:A201
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=178486668&oldid=prev
178.191.72.36: equals overrides java.lang.Object#equals
2018-06-20T21:00:13Z
<p>equals overrides java.lang.Object#equals</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 20. Juni 2018, 23:00 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return new Money(amount + other.amount, currency);</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return new Money(amount + other.amount, currency);</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> @Override</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money other) {</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money other) {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return (other != null && amount.equals(other.amount) && currency.equals(other.currency));</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return (other != null && amount.equals(other.amount) && currency.equals(other.currency));</div></td>
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</table>
178.191.72.36
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=159794751&oldid=prev
Luke081515Bot: Bot: Ein Weblink wurde korrigiert
2016-11-18T00:33:28Z
<p>Bot: Ein Weblink wurde korrigiert</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 18. November 2016, 02:33 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Für spezielle Werte kann es sinnvoll sein, diese als Objekte einer eigenen Klasse zu verwenden. Häufig verwendet wird dieses Entwurfsmuster beispielsweise für Geldbeträge oder Datumsangaben. Bei diesen komplexeren Datentypen können den jeweiligen Klassen von Beginn an eigene Methoden und Eigenschaften mitgegeben werden, die das spätere Arbeiten mit dem Wertobjekt vereinfachen.</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Für spezielle Werte kann es sinnvoll sein, diese als Objekte einer eigenen Klasse zu verwenden. Häufig verwendet wird dieses Entwurfsmuster beispielsweise für Geldbeträge oder Datumsangaben. Bei diesen komplexeren Datentypen können den jeweiligen Klassen von Beginn an eigene Methoden und Eigenschaften mitgegeben werden, die das spätere Arbeiten mit dem Wertobjekt vereinfachen.</div></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Wertobjekte haben, nach der Definition von Eric Evans<ref>[<del style="font-weight: bold; text-decoration: none;">http</del>://www.heise.de/developer/artikel/Einhaltung-von-Invarianten-mit-dem-Value-Object-Pattern-227222.html heise.de - Einhaltung von Invarianten mit dem Value Object Pattern] Abgerufen am 28. März 2016.</ref>, drei fundamentale Eigenschaften:</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Wertobjekte haben, nach der Definition von Eric Evans<ref>[<ins style="font-weight: bold; text-decoration: none;">https</ins>://www.heise.de/developer/artikel/Einhaltung-von-Invarianten-mit-dem-Value-Object-Pattern-227222.html heise.de - Einhaltung von Invarianten mit dem Value Object Pattern] Abgerufen am 28. März 2016.</ref>, drei fundamentale Eigenschaften:</div></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte haben keine Identität</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte haben keine Identität</div></td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte sind nicht veränderbar</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte sind nicht veränderbar</div></td>
</tr>
</table>
Luke081515Bot
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=152988410&oldid=prev
Sebastian.Dietrich: /* Beispiel (Java) */ add Methode zur Veranschaulichung der Immutability
2016-03-29T21:50:25Z
<p><span class="autocomment">Beispiel (Java): </span> add Methode zur Veranschaulichung der Immutability</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 29. März 2016, 23:50 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public Currency getCurrency() {</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public Currency getCurrency() {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.currency;</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.currency;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public Money add(Money other) {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> if (other == null || other.currency != currency) throw new IllegalArgumentException("Can't add " + other);</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> return new Money(amount + other.amount, currency);</div></td>
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<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money other) {</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money other) {</div></td>
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</table>
Sebastian.Dietrich
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=152988344&oldid=prev
Sebastian.Dietrich: /* Beispiel (Java) */ Klasse und Attribute müssen final sein, sonst kein ValueObject, Errorhandling, amount mit Integer wäre unüblich
2016-03-29T21:47:08Z
<p><span class="autocomment">Beispiel (Java): </span> Klasse und Attribute müssen final sein, sonst kein ValueObject, Errorhandling, amount mit Integer wäre unüblich</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 29. März 2016, 23:47 Uhr</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekt-Klasse Money (Geld)</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><syntaxhighlight lang="java"></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><syntaxhighlight lang="java"></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>public class Money {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>public<ins style="font-weight: bold; text-decoration: none;"> final</ins> class Money {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> private <del style="font-weight: bold; text-decoration: none;">Integer</del> amount;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> private <ins style="font-weight: bold; text-decoration: none;">final BigDecimal</ins> amount;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> private <del style="font-weight: bold; text-decoration: none;">String</del> currency;</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> private <ins style="font-weight: bold; text-decoration: none;">final Currency</ins> currency;</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> public Money(<del style="font-weight: bold; text-decoration: none;">Integer</del> amount, <del style="font-weight: bold; text-decoration: none;">String</del> currency) {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public Money(<ins style="font-weight: bold; text-decoration: none;">BigDecimal</ins> amount, <ins style="font-weight: bold; text-decoration: none;">Currency</ins> currency) {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> if (amount == null || currency == null) throw new IllegalArgumentException("Amount and Currency must not be null");</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> super();</div></td>
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<tr>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.amount = amount;</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.amount = amount;</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.currency = currency;</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> this.currency = currency;</div></td>
</tr>
<tr>
<td colspan="2" class="diff-lineno">Zeile 28:</td>
<td colspan="2" class="diff-lineno">Zeile 28:</td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.amount;</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.amount;</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> public <del style="font-weight: bold; text-decoration: none;">String</del> getCurrency() {</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public <ins style="font-weight: bold; text-decoration: none;">Currency</ins> getCurrency() {</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.currency;</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> return this.currency;</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money <del style="font-weight: bold; text-decoration: none;">compareObject</del>){</div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> public boolean equals(Money <ins style="font-weight: bold; text-decoration: none;">other</ins>)<ins style="font-weight: bold; text-decoration: none;"> </ins>{</div></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <del style="font-weight: bold; text-decoration: none;">if</del>(<del style="font-weight: bold; text-decoration: none;">(compareObject.getAmount()</del> <del style="font-weight: bold; text-decoration: none;">=</del>= <del style="font-weight: bold; text-decoration: none;">this</del>.amount) && <del style="font-weight: bold; text-decoration: none;">compareObject</del>.<del style="font-weight: bold; text-decoration: none;">getCurrency</del>(<del style="font-weight: bold; text-decoration: none;">)</del>.<del style="font-weight: bold; text-decoration: none;">equalsIgnoreCase(</del>currency))<del style="font-weight: bold; text-decoration: none;">{</del></div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <ins style="font-weight: bold; text-decoration: none;">return </ins>(<ins style="font-weight: bold; text-decoration: none;">other</ins> <ins style="font-weight: bold; text-decoration: none;">!</ins>= <ins style="font-weight: bold; text-decoration: none;">null && amount.equals(other</ins>.amount) && <ins style="font-weight: bold; text-decoration: none;">currency</ins>.<ins style="font-weight: bold; text-decoration: none;">equals</ins>(<ins style="font-weight: bold; text-decoration: none;">other</ins>.currency))<ins style="font-weight: bold; text-decoration: none;">;</ins></div></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> return true;</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> }else{</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> return false;</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td colspan="2" class="diff-empty diff-side-added"></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> }</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}</div></td>
</tr>
</table>
Sebastian.Dietrich
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=152941949&oldid=prev
Dab0015: /* Erklärung */ Eigenschaften hinzugefügt
2016-03-28T14:48:26Z
<p><span class="autocomment">Erklärung: </span> Eigenschaften hinzugefügt</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
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<col class="diff-content" />
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 28. März 2016, 16:48 Uhr</td>
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<td colspan="2" class="diff-lineno">Zeile 3:</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Erklärung ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Erklärung ==</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Für spezielle Werte kann es sinnvoll sein, diese als Objekte einer eigenen Klasse zu verwenden. Häufig verwendet wird dieses Entwurfsmuster beispielsweise für Geldbeträge oder Datumsangaben. Bei diesen komplexeren Datentypen können den jeweiligen Klassen von Beginn an eigene Methoden und Eigenschaften mitgegeben werden, die das spätere Arbeiten mit dem Wertobjekt vereinfachen.</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Für spezielle Werte kann es sinnvoll sein, diese als Objekte einer eigenen Klasse zu verwenden. Häufig verwendet wird dieses Entwurfsmuster beispielsweise für Geldbeträge oder Datumsangaben. Bei diesen komplexeren Datentypen können den jeweiligen Klassen von Beginn an eigene Methoden und Eigenschaften mitgegeben werden, die das spätere Arbeiten mit dem Wertobjekt vereinfachen.</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Wertobjekte haben, nach der Definition von Eric Evans<ref>[http://www.heise.de/developer/artikel/Einhaltung-von-Invarianten-mit-dem-Value-Object-Pattern-227222.html heise.de - Einhaltung von Invarianten mit dem Value Object Pattern] Abgerufen am 28. März 2016.</ref>, drei fundamentale Eigenschaften:</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte haben keine Identität</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte sind nicht veränderbar</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty diff-side-deleted"></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Wertobjekte werden immer in einem gültigen Zustand erzeugt</div></td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Beispiele ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Beispiele ==</div></td>
</tr>
</table>
Dab0015
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=146925282&oldid=prev
PerfektesChaos: tk k
2015-10-12T09:12:32Z
<p>tk k</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Nächstältere Version</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 12. Oktober 2015, 11:12 Uhr</td>
</tr><tr>
<td colspan="2" class="diff-lineno">Zeile 1:</td>
<td colspan="2" class="diff-lineno">Zeile 1:</td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Das '''Value Object''' (auch ''Wertobjekt'') ist ein in der Softwareentwicklung eingesetztes [[Entwurfsmuster]]. Wertobjekte sind unveränderbare Objekte, die einen speziellen Wert repräsentieren. Soll der Wert geändert werden, so muss ein neues Objekt generiert werden.<ref>[http://openbook.rheinwerk-verlag.de/oo/oo_04_strukturvonooprogrammen_003.htm<del style="font-weight: bold; text-decoration: none;"> Rheinwerk Computing – Praxisbuch Objektorientierung –</del> 4.4 Klassen von Werten und Klassen von Objekten]<del style="font-weight: bold; text-decoration: none;">,</del> abgerufen am 31. August 2015</ref> Das Entwurfsmuster wird dazu genutzt, Objektvergleiche auf deren Attributwerte zu beziehen, anstatt auf Objektidentität.<ref>{{Literatur<del style="font-weight: bold; text-decoration: none;"> </del>|<del style="font-weight: bold; text-decoration: none;"> </del>Autor=Karl Eilebrecht, Gernot Starke<del style="font-weight: bold; text-decoration: none;"> </del>| Titel=Patterns kompakt<del style="font-weight: bold; text-decoration: none;"> </del>| Auflage=4<del style="font-weight: bold; text-decoration: none;"> </del>| Verlag=Springer Vieweg Verlag<del style="font-weight: bold; text-decoration: none;"> </del>| Ort=Berlin<del style="font-weight: bold; text-decoration: none;"> </del>| Jahr=2013<del style="font-weight: bold; text-decoration: none;"> </del>| ISBN=978-3-642-34717-7<del style="font-weight: bold; text-decoration: none;"> </del>|Seiten=195–197<del style="font-weight: bold; text-decoration: none;"> </del>}}</ref></div></td>
<td class="diff-marker" data-marker="+"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Das '''Value Object''' (auch ''Wertobjekt'') ist ein in der Softwareentwicklung eingesetztes [[Entwurfsmuster]]. Wertobjekte sind unveränderbare Objekte, die einen speziellen Wert repräsentieren. Soll der Wert geändert werden, so muss ein neues Objekt generiert werden.<ref>[http://openbook.rheinwerk-verlag.de/oo/oo_04_strukturvonooprogrammen_003.htm 4.4 Klassen von Werten und Klassen von Objekten<ins style="font-weight: bold; text-decoration: none;">.</ins>]<ins style="font-weight: bold; text-decoration: none;"> Rheinwerk Computing – Praxisbuch Objektorientierung;</ins> abgerufen am 31. August 2015</ref> Das Entwurfsmuster wird dazu genutzt, Objektvergleiche auf deren Attributwerte zu beziehen, anstatt auf Objektidentität.<ref>{{Literatur|Autor=Karl Eilebrecht, Gernot Starke| Titel=Patterns kompakt| Auflage=4| Verlag=Springer Vieweg Verlag| Ort=Berlin| Jahr=2013| ISBN=978-3-642-34717-7|Seiten=195–197}}</ref></div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Erklärung ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Erklärung ==</div></td>
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<tr>
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<td colspan="2" class="diff-lineno">Zeile 6:</td>
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<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Beispiele ==</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Beispiele ==</div></td>
</tr>
<tr>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Datum ===</div></td>
<td class="diff-marker"></td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=== Datum ===</div></td>
</tr>
<tr>
<td class="diff-marker" data-marker="−"></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Die Klasse "Datum" besitzt die Methoden "getYear()"<del style="font-weight: bold; text-decoration: none;">,</del> "getEuropeanDate()" <del style="font-weight: bold; text-decoration: none;">-></del> diese erleichtern den Umgang mit Objekten vom Typ "Datum".</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Die Klasse "Datum" besitzt die Methoden "getYear()"<ins style="font-weight: bold; text-decoration: none;"> und</ins> "getEuropeanDate()" <ins style="font-weight: bold; text-decoration: none;">–</ins> diese erleichtern den Umgang mit Objekten vom Typ "Datum".</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>=== Beispiel (<ins style="font-weight: bold; text-decoration: none;">Java</ins>) ===</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><<del style="font-weight: bold; text-decoration: none;">source</del> lang="java"><del style="font-weight: bold; text-decoration: none;"> </del></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><<ins style="font-weight: bold; text-decoration: none;">syntaxhighlight</ins> lang="java"></div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>public class Money {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>public class Money {</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> public Money(Integer amount, String currency) {</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> super();</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Weblinks ==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Weblinks ==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [http://hillside.net/plop/2006/Papers/Library/ValueObject-%20vo5.pdf Erklärung mit Beispielen (englisch)<del style="font-weight: bold; text-decoration: none;">]</del></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [http://hillside.net/plop/2006/Papers/Library/ValueObject-%20vo5.pdf Erklärung mit Beispielen<ins style="font-weight: bold; text-decoration: none;">]</ins> (<ins style="font-weight: bold; text-decoration: none;">PDF; </ins>englisch)</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* [https://books.google.de/books?id=XPbGEtu47bkC&pg=PA50&lpg=PA50&dq=wertobjekt+programmierung&source=bl&ots=d5FVLPbuSv&sig=jXgNuQ0BVlRFx2m2u43tPBENNV8&hl=de&sa=X&ved=0CDgQ6AEwBWoVChMIrOTEttHTxwIVhQ9yCh1K1Anm#v=onepage&q=wertobjekt%20programmierung&f=false Erklärung mit Beispielen (deutsch)<del style="font-weight: bold; text-decoration: none;">]</del></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* [https://books.google.de/books?id=XPbGEtu47bkC&pg=PA50&lpg=PA50&dq=wertobjekt+programmierung&source=bl&ots=d5FVLPbuSv&sig=jXgNuQ0BVlRFx2m2u43tPBENNV8&hl=de&sa=X&ved=0CDgQ6AEwBWoVChMIrOTEttHTxwIVhQ9yCh1K1Anm#v=onepage&q=wertobjekt%20programmierung&f=false Erklärung mit Beispielen<ins style="font-weight: bold; text-decoration: none;">]</ins> (deutsch)</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br /></td>
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PerfektesChaos
https://de.wikipedia.org/w/index.php?title=Value_Object&diff=146729172&oldid=prev
Wikinger08: QS erledigt
2015-10-06T05:42:22Z
<p>QS erledigt</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version vom 6. Oktober 2015, 07:42 Uhr</td>
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<td class="diff-marker"><a class="mw-diff-movedpara-right" title="Der Absatz wurde verschoben. Klicken, um zur alten Stelle zu springen." href="#movedpara_2_0_lhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_0_0_rhs"></a>Das '''Value Object''' (auch ''Wertobjekt'') ist ein in der Softwareentwicklung eingesetztes [[Entwurfsmuster]]. Wertobjekte sind unveränderbare Objekte, die einen speziellen Wert repräsentieren. Soll der Wert geändert werden, so muss ein neues Objekt generiert werden.<ref><ins style="font-weight: bold; text-decoration: none;">[</ins>http://openbook.rheinwerk-verlag.de/oo/oo_04_strukturvonooprogrammen_003.htm<ins style="font-weight: bold; text-decoration: none;"> Rheinwerk Computing – Praxisbuch Objektorientierung – 4.4 Klassen von Werten und Klassen von Objekten],</ins> abgerufen am 31.<ins style="font-weight: bold; text-decoration: none;"> August </ins>2015</ref> Das Entwurfsmuster wird dazu genutzt<ins style="font-weight: bold; text-decoration: none;">,</ins> Objektvergleiche auf deren Attributwerte zu beziehen, anstatt auf Objektidentität.<ref>{{Literatur | Autor=Karl Eilebrecht, Gernot Starke | Titel=Patterns kompakt | Auflage=4 | Verlag=Springer Vieweg Verlag | Ort=Berlin | Jahr=2013 | ISBN=978-3-642-34717-7 |Seiten=<ins style="font-weight: bold; text-decoration: none;">195–197</ins> }}</ref></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>{{QS-Antrag|31. August 2015|2=Einmal [[WP:Wikifizieren]] bitte --[[Benutzer:Schnabeltassentier|Schnabeltassentier]] ([[Benutzer Diskussion:Schnabeltassentier|Diskussion]]) 17:06, 31. Aug. 2015 (CEST)}}</div></td>
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<td class="diff-marker"><a class="mw-diff-movedpara-left" title="Der Absatz wurde verschoben. Klicken, um zur neuen Stelle zu springen." href="#movedpara_0_0_rhs">⚫</a></td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><a name="movedpara_2_0_lhs"></a>Das '''Value Object''' (auch ''Wertobjekt'') ist ein in der Softwareentwicklung eingesetztes [[Entwurfsmuster]]. Wertobjekte sind unveränderbare Objekte, die einen speziellen Wert repräsentieren. Soll der Wert geändert werden, so muss ein neues Objekt generiert werden.<ref>http://openbook.rheinwerk-verlag.de/oo/oo_04_strukturvonooprogrammen_003.htm abgerufen am 31.<del style="font-weight: bold; text-decoration: none;">08.</del>2015</ref> Das Entwurfsmuster wird dazu genutzt Objektvergleiche auf deren Attributwerte zu beziehen, anstatt auf Objektidentität.<ref>{{Literatur | Autor=Karl Eilebrecht, Gernot Starke | Titel=Patterns kompakt | Auflage=4 | Verlag=Springer Vieweg Verlag | Ort=Berlin | Jahr=2013 | ISBN=978-3-642-34717-7 |Seiten=<del style="font-weight: bold; text-decoration: none;">195-197</del> }}</ref></div></td>
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Wikinger08