Fast Object Database for Java - with JPA/JDO support

Join.generatePrimaryKey - JDO annotation element

Annotation Element
javax.jdo.annotations.Join
String generatePrimaryKey

Generate or assume a primary key constraint exists on the column or columns associated with this join. Specify "true" or "false".
Returns:
whether to generate or assume a primary key constraint
Default value:
""
Since:
JDO 2.1