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| <h2 title="Enum ExistenceType" class="title">Enum ExistenceType</h2> |
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| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><<a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a>></li> |
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| <li>org.eclipse.persistence.annotations.ExistenceType</li> |
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| <pre>public enum <span class="typeNameLabel">ExistenceType</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a>></pre> |
| <div class="block">An enum that is used within the ExistenceChecking annotation.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../org/eclipse/persistence/annotations/ExistenceChecking.html" title="annotation in org.eclipse.persistence.annotations"><code>ExistenceChecking</code></a>, |
| <a href="../../../../org/eclipse/persistence/queries/DoesExistQuery.html" title="class in org.eclipse.persistence.queries"><code>DoesExistQuery</code></a></dd> |
| <dt><span class="simpleTagLabel">Author:</span></dt> |
| <dd>Guy Pelletier</dd> |
| <dt><span class="simpleTagLabel">Since:</span></dt> |
| <dd>EclipseLink 1.0</dd> |
| </dl> |
| </li> |
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| <tr> |
| <th class="colOne" scope="col">Enum Constant and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#ASSUME_EXISTENCE">ASSUME_EXISTENCE</a></span></code> |
| <div class="block">Assume that if the objects primary key does not include null then it |
| must exist.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#ASSUME_NON_EXISTENCE">ASSUME_NON_EXISTENCE</a></span></code> |
| <div class="block">Assume that the object does not exist.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#CHECK_CACHE">CHECK_CACHE</a></span></code> |
| <div class="block">Assume that if the objects primary key does not include null and it |
| is in the cache, then it must exist.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#CHECK_DATABASE">CHECK_DATABASE</a></span></code> |
| <div class="block">Perform does exist check on the database.</div> |
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| <td class="colFirst"><code>static <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#valueOf-java.lang.String-">valueOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> |
| <div class="block">Returns the enum constant of this type with the specified name.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html#values--">values</a></span>()</code> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared.</div> |
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| <h4>CHECK_CACHE</h4> |
| <pre>public static final <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a> CHECK_CACHE</pre> |
| <div class="block">Assume that if the objects primary key does not include null and it |
| is in the cache, then it must exist.</div> |
| </li> |
| </ul> |
| <a name="CHECK_DATABASE"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>CHECK_DATABASE</h4> |
| <pre>public static final <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a> CHECK_DATABASE</pre> |
| <div class="block">Perform does exist check on the database.</div> |
| </li> |
| </ul> |
| <a name="ASSUME_EXISTENCE"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>ASSUME_EXISTENCE</h4> |
| <pre>public static final <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a> ASSUME_EXISTENCE</pre> |
| <div class="block">Assume that if the objects primary key does not include null then it |
| must exist. This may be used if the application guarantees or does not |
| care about the existence check.</div> |
| </li> |
| </ul> |
| <a name="ASSUME_NON_EXISTENCE"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>ASSUME_NON_EXISTENCE</h4> |
| <pre>public static final <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a> ASSUME_NON_EXISTENCE</pre> |
| <div class="block">Assume that the object does not exist. This may be used if the |
| application guarantees or does not care about the existence check. |
| This will always force an insert to be called.</div> |
| </li> |
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| <h4>values</h4> |
| <pre>public static <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a>[] values()</pre> |
| <div class="block">Returns an array containing the constants of this enum type, in |
| the order they are declared. This method may be used to iterate |
| over the constants as follows: |
| <pre> |
| for (ExistenceType c : ExistenceType.values()) |
| System.out.println(c); |
| </pre></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>an array containing the constants of this enum type, in the order they are declared</dd> |
| </dl> |
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| <pre>public static <a href="../../../../org/eclipse/persistence/annotations/ExistenceType.html" title="enum in org.eclipse.persistence.annotations">ExistenceType</a> valueOf(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> |
| <div class="block">Returns the enum constant of this type with the specified name. |
| The string must match <i>exactly</i> an identifier used to declare an |
| enum constant in this type. (Extraneous whitespace characters are |
| not permitted.)</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>name</code> - the name of the enum constant to be returned.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the enum constant with the specified name</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd> |
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