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@@ -1,4 +1,4 @@
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/*******************************************************************************
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/** *****************************************************************************
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* Copyright (c) 2011 - 2013 Oracle Corporation. All rights reserved.
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*
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* This program and the accompanying materials are made available under the
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@@ -11,7 +11,7 @@
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* Contributors:
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* Linda DeMichiel - Java Persistence 2.1
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*
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******************************************************************************/
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***************************************************************************** */
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package javax.persistence;
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import static java.lang.annotation.RetentionPolicy.RUNTIME;
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@@ -24,23 +24,18 @@ import java.lang.annotation.Target;
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* Note that it is not necessary to specify an index for a primary key,
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* as the primary key index will be created automatically.
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*
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* <p>
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* The syntax of the <code>columnList</code> element is a
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* <p>
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* The syntax of the <code>columnList</code> element is a
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* <code>column_list</code>, as follows:
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*
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*
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* <pre>
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* column::= index_column [,index_column]*
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* index_column::= column_name [ASC | DESC]
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* </pre>
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*
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* <p> If <code>ASC</code> or <code>DESC</code> is not specified,
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* <code>ASC</code> (ascending order) is assumed.
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*
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* @see Table
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* @see SecondaryTable
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* @see CollectionTable
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* @see JoinTable
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* @see TableGenerator
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* <p>
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* If <code>ASC</code> or <code>DESC</code> is not specified,
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* <code>ASC</code> (ascending order) is assumed.
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*
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* @since Java Persistence 2.1
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*
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@@ -51,17 +46,23 @@ public @interface Index {
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/**
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* (Optional) The name of the index; defaults to a provider-generated name.
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*
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* @return String
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*/
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String name() default "";
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/**
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* (Required) The names of the columns to be included in the index,
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* (Required) The names of the columns to be included in the index,
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* in order.
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*
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* @return String
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*/
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String columnList();
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/**
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* (Optional) Whether the index is unique.
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*
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* @return boolean
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*/
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boolean unique() default false;
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