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| <h2 title="Interface PdxUnreadFields" class="title">Interface PdxUnreadFields</h2> |
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| <pre>public interface <span class="typeNameLabel">PdxUnreadFields</span></pre> |
| <div class="block">Marker interface for an object that GemFire creates and returns from |
| <a href="../../../../org/apache/geode/pdx/PdxReader.html#readUnreadFields--"><code>readUnreadFields</code></a>. If you call readUnreadFields then you must |
| also call <a href="../../../../org/apache/geode/pdx/PdxWriter.html#writeUnreadFields-org.apache.geode.pdx.PdxUnreadFields-"><code>writeUnreadFields</code></a> when that object |
| is reserialized. If you do not call <a href="../../../../org/apache/geode/pdx/PdxWriter.html#writeUnreadFields-org.apache.geode.pdx.PdxUnreadFields-"><code>writeUnreadFields</code></a> but you did call <a href="../../../../org/apache/geode/pdx/PdxReader.html#readUnreadFields--"><code>readUnreadFields</code></a> the |
| unread fields will not be written. |
| <p> |
| Unread fields are those that are not explicitly read with a <a href="../../../../org/apache/geode/pdx/PdxReader.html" title="interface in org.apache.geode.pdx"><code>PdxReader</code></a> readXXX method. |
| This should only happen when a domain class has changed by adding or removing one or more fields. |
| Unread fields will be preserved automatically (unless you turn this feature off using |
| <a href="../../../../org/apache/geode/cache/CacheFactory.html#setPdxIgnoreUnreadFields-boolean-"><code>setPdxIgnoreUnreadFields</code></a> or |
| <a href="../../../../org/apache/geode/cache/client/ClientCacheFactory.html#setPdxIgnoreUnreadFields-boolean-"><code>client |
| setPdxIgnoreUnreadFields</code></a>) but to reduce the performance and memory overhead of automatic |
| preservation it is recommended that use <a href="../../../../org/apache/geode/pdx/PdxReader.html#readUnreadFields--"><code>readUnreadFields</code></a> if |
| possible.</div> |
| <dl> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>GemFire 6.6</dd> |
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