Package org.eclipse.persistence.descriptors

Class TablePerClassPolicy

java.lang.Object

org.eclipse.persistence.descriptors.InterfacePolicy

org.eclipse.persistence.descriptors.TablePerClassPolicy

All Implemented Interfaces:

Serializable, Cloneable

public class TablePerClassPolicy
extends InterfacePolicy

Purpose: Provides the functionality to support a TABLE_PER_CLASS inheritance strategy. Resolves relational mappings and querying.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.eclipse.persistence.descriptors.InterfacePolicy

childDescriptors, descriptor, implementorDescriptor, implementorDescriptorClassName, parentDescriptors, parentInterfaceNames, parentInterfaces

Constructor Summary

Constructors

Constructor	Description
TablePerClassPolicy(ClassDescriptor descriptor)	INTERNAL: Create a new policy.

Method Summary

Modifier and Type	Method	Description
boolean	isTablePerClassPolicy()	INTERNAL:
protected Object	selectAllObjects(ReadAllQuery query)	INTERNAL: Select all objects for a concrete descriptor.
protected Object	selectOneObject(ReadObjectQuery query)	INTERNAL: Select one object of any concrete subclass.

Methods inherited from class org.eclipse.persistence.descriptors.InterfacePolicy

addChildDescriptor, addParentDescriptor, addParentInterface, addParentInterfaceName, convertClassNamesToClasses, getChildDescriptors, getDescriptor, getImplementorDescriptor, getImplementorDescriptorClassName, getParentDescriptors, getParentInterfaceNames, getParentInterfaces, hasChild, initialize, isInterfaceChildDescriptor, prepareQuery, selectAllObjectsUsingMultipleTableSubclassRead, selectOneObjectUsingMultipleTableSubclassRead, setDescriptor, setImplementorDescriptor, setImplementorDescriptorClassName, setParentInterfaceNames, setParentInterfaces, usesImplementorDescriptor

Methods inherited from class java.lang.Object

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

Constructor Details

TablePerClassPolicy

public TablePerClassPolicy(ClassDescriptor descriptor)

INTERNAL: Create a new policy. Only descriptors involved in inheritance should have a policy.

Method Details

isTablePerClassPolicy

public boolean isTablePerClassPolicy()

INTERNAL:

Overrides:

isTablePerClassPolicy in class InterfacePolicy

selectAllObjects

protected Object selectAllObjects(ReadAllQuery query)

INTERNAL: Select all objects for a concrete descriptor.

Overrides:

selectAllObjects in class InterfacePolicy

selectOneObject

protected Object selectOneObject(ReadObjectQuery query)
                          throws DescriptorException

INTERNAL: Select one object of any concrete subclass.

Overrides:

selectOneObject in class InterfacePolicy

Throws:

DescriptorException