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@Target(value={}) @Retention(value=RUNTIME) public @interface UniqueConstraint
Is used to specify that a unique constraint is to be included in the generated DDL for a primary or secondary table.
Example: @Entity @Table( name="EMPLOYEE", uniqueConstraints= @UniqueConstraint(columnNames={"EMP_ID", "EMP_NAME"}) ) public class Employee { ... }
Required Element Summary | |
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java.lang.String[] |
columnNames
(Required) An array of the column names that make up the constraint. |
Optional Element Summary | |
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java.lang.String |
name
(Optional) Constraint name. |
Element Detail |
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public abstract java.lang.String[] columnNames
public abstract java.lang.String name
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EclipseLink 1.2.0, build 'v20091016-r5565' API Reference | |||||||||
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