org.jpox.annotations
Annotation Type Join

@Target(value={TYPE,FIELD,METHOD})
@Retention(value=RUNTIME)
public @interface Join

Annotation for the join of a relation. Maps across to the JDO2 element "join".

Version:

$Revision: 1.6 $

Optional Element Summary

java.lang.String	column Name of the column in the join table.
Column[]	columns Detail definition of the join column(s).
ForeignKeyAction	deleteAction Delete action to be applied to any ForeignKey on this join.
java.lang.String	indexed Whether the join column is indexed.
java.lang.String	outer Whether to use an outer join.
java.lang.String	table Table to join to (used when joining to secondary tables).
java.lang.String	unique Whether the join column is unique

table

public abstract java.lang.String table

Table to join to (used when joining to secondary tables).

Default:

""

column

public abstract java.lang.String column

Name of the column in the join table.

Default:

""

indexed

public abstract java.lang.String indexed

Whether the join column is indexed.

Default:

""

unique

public abstract java.lang.String unique

Whether the join column is unique

Default:

""

outer

public abstract java.lang.String outer

Whether to use an outer join.

Default:

""

deleteAction

public abstract ForeignKeyAction deleteAction

Delete action to be applied to any ForeignKey on this join.

Default:

UNKNOWN

columns

public abstract Column[] columns

Detail definition of the join column(s).

Default:

{}