org.apache.openjpa.jdbc.meta.strats
Class IdentityJoinable

java.lang.Object
  org.apache.openjpa.jdbc.meta.strats.IdentityJoinable

All Implemented Interfaces:

Serializable, Joinable

 class IdentityJoinable
extends Object
implements Joinable

Joinable for the datastore identity column.

Author:

Abe White

Constructor Summary

IdentityJoinable(ClassMapping mapping)
Constructor; supply datastore identity mapping.

Method Summary

Column[]	getColumns() The columns managed by this joinable.
int	getFieldIndex() Return the field index of this joinable, or -1 if not a field.
Object	getJoinValue(Object val, Column col, JDBCStore store) Return the join value of the given column.
Object	getJoinValue(OpenJPAStateManager sm, Column col, JDBCStore store) Return the join value of the given column.
Object	getPrimaryKeyValue(Result res, Column[] cols, ForeignKey fk, JDBCStore store, Joins joins) Return the value for this joinable from the given result, using the given columns.
void	setAutoAssignedValue(OpenJPAStateManager sm, JDBCStore store, Column col, Object autogen) Use the given auto-assigned value to set this join value's field on the given instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IdentityJoinable

public IdentityJoinable(ClassMapping mapping)

Constructor; supply datastore identity mapping.

Method Detail

getFieldIndex

public int getFieldIndex()

Description copied from interface: Joinable

Return the field index of this joinable, or -1 if not a field.

Specified by:

getFieldIndex in interface Joinable

getPrimaryKeyValue

public Object getPrimaryKeyValue(Result res,
                                 Column[] cols,
                                 ForeignKey fk,
                                 JDBCStore store,
                                 Joins joins)
                          throws SQLException

Description copied from interface: Joinable

Return the value for this joinable from the given result, using the given columns. If the given foreign key is non-null, use the foreign key's columns by translating the given columns through ForeignKey.getColumn(org.apache.openjpa.jdbc.schema.Column).

Specified by:

getPrimaryKeyValue in interface Joinable

Throws:

SQLException

getColumns

public Column[] getColumns()

Description copied from interface: Joinable

The columns managed by this joinable.

Specified by:

getColumns in interface Joinable

getJoinValue

public Object getJoinValue(Object val,
                           Column col,
                           JDBCStore store)

Description copied from interface: Joinable

Return the join value of the given column.

Specified by:

getJoinValue in interface Joinable

Parameters:

val - the value of the field for this joinable

col - the column of this joinable whose value to return

getJoinValue

public Object getJoinValue(OpenJPAStateManager sm,
                           Column col,
                           JDBCStore store)

Description copied from interface: Joinable

Return the join value of the given column.

Specified by:

getJoinValue in interface Joinable

Parameters:

sm - the instance from which to get the value

col - the column whose value to return

setAutoAssignedValue

public void setAutoAssignedValue(OpenJPAStateManager sm,
                                 JDBCStore store,
                                 Column col,
                                 Object autogen)

Description copied from interface: Joinable

Use the given auto-assigned value to set this join value's field on the given instance.

Specified by:

setAutoAssignedValue in interface Joinable