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

java.lang.Object
  org.apache.openjpa.jdbc.meta.strats.AbstractValueHandler
      org.apache.openjpa.jdbc.meta.strats.EmbedValueHandler

All Implemented Interfaces:

ValueHandler

Direct Known Subclasses:

ObjectIdValueHandler

public abstract class EmbedValueHandler
extends AbstractValueHandler

Base class for embedded value handlers.

Since:

0.4.0

Author:

Abe White

Constructor Summary

EmbedValueHandler()

Method Summary

protected void	map(ValueMapping vm, String name, ColumnIO io, boolean adapt, List cols, List args) Maps embedded value and gathers columns and arguments into given lists.
protected Object	toDataStoreValue(OpenJPAStateManager em, ValueMapping vm, JDBCStore store, Column[] cols, Object rval, int idx) Helper to convert an object value to its datastore equivalent.
protected void	toObjectValue(OpenJPAStateManager em, ValueMapping vm, Object val, JDBCStore store, JDBCFetchConfiguration fetch, Column[] cols, int idx) Helper to convert a datastore value to its object equivalent.

Methods inherited from class org.apache.openjpa.jdbc.meta.strats.AbstractValueHandler

getResultArgument, isVersionable, objectValueRequiresLoad, toDataStoreValue, toObjectValue, toObjectValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.jdbc.meta.ValueHandler

map

Constructor Detail

EmbedValueHandler

public EmbedValueHandler()

Method Detail

map

protected void map(ValueMapping vm,
                   String name,
                   ColumnIO io,
                   boolean adapt,
                   List cols,
                   List args)

Maps embedded value and gathers columns and arguments into given lists.

toDataStoreValue

protected Object toDataStoreValue(OpenJPAStateManager em,
                                  ValueMapping vm,
                                  JDBCStore store,
                                  Column[] cols,
                                  Object rval,
                                  int idx)

Helper to convert an object value to its datastore equivalent.

Parameters:

em - state manager for embedded object

vm - owning value

store - store manager

cols - embedded columns

rval - return array if multiple columns

idx - index in columns array to start

toObjectValue

protected void toObjectValue(OpenJPAStateManager em,
                             ValueMapping vm,
                             Object val,
                             JDBCStore store,
                             JDBCFetchConfiguration fetch,
                             Column[] cols,
                             int idx)
                      throws SQLException

Helper to convert a datastore value to its object equivalent.

Parameters:

em - state manager for embedded object

vm - owning value

val - datastore value

store - optional store manager

fetch - optional fetch configuration

cols - embedded columns

idx - index in columns array to start

Throws:

SQLException