Annotation Type Id

public @interface Id

Specifies the primary key of an entity. The field or property to which the Id annotation is applied should be one of the following types: any Java primitive type; any primitive wrapper type; String; java.util.Date; java.sql.Date; java.math.BigDecimal; java.math.BigInteger.

The mapped column for the primary key of the entity is assumed to be the primary key of the primary table. If no Column annotation is specified, the primary key column name is assumed to be the name of the primary key property or field.


   public Long getId() { return id; }

Java Persistence 1.0
See Also:
Column, GeneratedValue

Submit a bug or feature

Copyright © 2009-2011, Oracle Corporation and/or its affiliates. All Rights Reserved. Use is subject to license terms.

Generated on 10-February-2011 12:41

Scripting on this page tracks web page traffic, but does not change the content in any way.