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

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

All Implemented Interfaces:

Serializable, ValueHandler

public class EnumValueHandler
extends AbstractValueHandler

Value handler for JDK1.5 enum field types.

See Also:

Serialized Form

Constructor Summary

EnumValueHandler()

Method Summary

boolean	getStoreOrdinal() Whether to store the enum value as its ordinal.
boolean	isVersionable()
Column[]	map(ValueMapping vm, String name, ColumnIO io, boolean adapt) Map the given value and return all mapped columns, or simply return an array of unmapped default columns.
void	setStoreOrdinal(boolean ordinal) Whether to store the enum value as its ordinal.
Object	toDataStoreValue(ValueMapping vm, Object val, JDBCStore store) Translate the given value to its datastore equivalent.
Object	toObjectValue(ValueMapping vm, Object val) Translate the given datastore value into its Java equivalent.

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

getResultArgument, isVersionable, objectValueRequiresLoad, toObjectValue

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumValueHandler

public EnumValueHandler()

Method Detail

getStoreOrdinal

public boolean getStoreOrdinal()

Whether to store the enum value as its ordinal.

setStoreOrdinal

public void setStoreOrdinal(boolean ordinal)

Whether to store the enum value as its ordinal.

map

public Column[] map(ValueMapping vm,
                    String name,
                    ColumnIO io,
                    boolean adapt)

Description copied from interface: ValueHandler

Map the given value and return all mapped columns, or simply return an array of unmapped default columns. The columns should have at least their Name and JavaType properties set.

name - use as a base to form column name(s); the column names of unmapped columns will automatically be made to fit database limitations

io - I/O information about mapped columns; you do not have to set this information if returning templates

adapt - whether to adapt the mapping or schema

isVersionable

public boolean isVersionable()

toDataStoreValue

public Object toDataStoreValue(ValueMapping vm,
                               Object val,
                               JDBCStore store)

Description copied from interface: ValueHandler

Translate the given value to its datastore equivalent. If this value occupies multiple columns, return an object array with one element per column. For relation id columns, return the state manager the column depends on.

Specified by:

toDataStoreValue in interface ValueHandler

Overrides:

toDataStoreValue in class AbstractValueHandler

toObjectValue

public Object toObjectValue(ValueMapping vm,
                            Object val)

Description copied from interface: ValueHandler

Translate the given datastore value into its Java equivalent. If the value occupies multiple columns, the given object will be an object array with one entry per column. This method is only called if ValueHandler.objectValueRequiresLoad(org.apache.openjpa.jdbc.meta.ValueMapping) returns false.

Specified by:

toObjectValue in interface ValueHandler

Overrides:

toObjectValue in class AbstractValueHandler