Package org.eclipse.persistence.internal.descriptors

Class CascadeLockingPolicy

java.lang.Object

org.eclipse.persistence.internal.descriptors.CascadeLockingPolicy

public class CascadeLockingPolicy
extends Object

INTERNAL:

Field Summary

Fields

Modifier and Type	Field	Description
protected ClassDescriptor	m_descriptor
protected boolean	m_hasCheckedForUnmappedFields
protected boolean	m_lookForParentMapping
protected Map<DatabaseField,DatabaseField>	m_mappedQueryKeyFields
protected Class	m_parentClass
protected ClassDescriptor	m_parentDescriptor
protected DatabaseMapping	m_parentMapping
protected ReadObjectQuery	m_query
protected Map<DatabaseField,DatabaseField>	m_queryKeyFields
protected boolean	m_shouldHandleUnmappedFields
protected DataReadQuery	m_unmappedFieldsQuery
protected Map<DatabaseField,DatabaseField>	m_unmappedQueryKeyFields

Constructor Summary

Constructors

Constructor	Description
CascadeLockingPolicy(ClassDescriptor parentDescriptor, ClassDescriptor descriptor)	INTERNAL:

Method Summary

Modifier and Type	Method	Description
protected AbstractRecord	getMappedTranslationRow(Object changedObj, UnitOfWorkImpl uow)	INTERNAL:
protected ClassDescriptor	getParentDescriptorFromInheritancePolicy(Object parentObj)	Get the descriptor that really represents this object In the case of inheritance, the object may represent a subclass of class the descriptor represents.
protected DatabaseMapping	getParentMapping()	INTERNAL:
protected ReadObjectQuery	getQuery()	INTERNAL:
protected AbstractRecord	getUnmappedTranslationRow(Object changedObj, UnitOfWorkImpl uow)	INTERNAL:
void	initUnmappedFields(UnitOfWorkImpl uow)	INTERNAL: Identify mapped and not mapped fields (should be done once).
void	initUnmappedFieldsQuery(UnitOfWorkImpl uow)	INTERNAL: This method called in case there are m_unmappedQueryKeyFields.
void	lockNotifyParent(Object obj, UnitOfWorkChangeSet changeSet, UnitOfWorkImpl uow)	INTERNAL:
void	setQueryKeyFields(Map<DatabaseField,DatabaseField> queryKeyFields)	INTERNAL:
void	setQueryKeyFields(Map<DatabaseField,DatabaseField> queryKeyFields, boolean lookForParentMapping)	INTERNAL:
void	setShouldHandleUnmappedFields(boolean shouldHandleUnmappedFields)	INTERNAL: Indicates whether to expect unmapped fields.
boolean	shouldHandleUnmappedFields()	INTERNAL:

Methods inherited from class java.lang.Object

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

Field Detail

m_parentClass

protected Class m_parentClass

m_query

protected ReadObjectQuery m_query

m_descriptor

protected ClassDescriptor m_descriptor

m_parentDescriptor

protected ClassDescriptor m_parentDescriptor

m_queryKeyFields

protected Map<DatabaseField,DatabaseField> m_queryKeyFields

m_mappedQueryKeyFields

protected Map<DatabaseField,DatabaseField> m_mappedQueryKeyFields

m_unmappedQueryKeyFields

protected Map<DatabaseField,DatabaseField> m_unmappedQueryKeyFields

m_parentMapping

protected DatabaseMapping m_parentMapping

m_lookForParentMapping

protected boolean m_lookForParentMapping

m_shouldHandleUnmappedFields

protected boolean m_shouldHandleUnmappedFields

m_hasCheckedForUnmappedFields

protected boolean m_hasCheckedForUnmappedFields

m_unmappedFieldsQuery

protected DataReadQuery m_unmappedFieldsQuery

Constructor Detail

CascadeLockingPolicy

public CascadeLockingPolicy(ClassDescriptor parentDescriptor,
                            ClassDescriptor descriptor)

INTERNAL:

Method Detail

getQuery

protected ReadObjectQuery getQuery()

INTERNAL:

getParentMapping

protected DatabaseMapping getParentMapping()

INTERNAL:

getParentDescriptorFromInheritancePolicy

protected ClassDescriptor getParentDescriptorFromInheritancePolicy(Object parentObj)

Get the descriptor that really represents this object In the case of inheritance, the object may represent a subclass of class the descriptor represents. If there is no InheritancePolicy, we return our parentDescriptor If there is inheritance we will search for a descriptor that represents parentObj and return that descriptor

Parameters:

parentObj -

Returns:

getMappedTranslationRow

protected AbstractRecord getMappedTranslationRow(Object changedObj,
                                                 UnitOfWorkImpl uow)

INTERNAL:

getUnmappedTranslationRow

protected AbstractRecord getUnmappedTranslationRow(Object changedObj,
                                                   UnitOfWorkImpl uow)

INTERNAL:

initUnmappedFields

public void initUnmappedFields(UnitOfWorkImpl uow)

INTERNAL: Identify mapped and not mapped fields (should be done once). The result - either two non-empty Maps m_unmappedQueryKeyFields and m_mappedQueryKeyFields, or m_unmappedQueryKeyFields == null and m_mappedQueryKeyFields == m_queryKeyFields.

initUnmappedFieldsQuery

public void initUnmappedFieldsQuery(UnitOfWorkImpl uow)

INTERNAL: This method called in case there are m_unmappedQueryKeyFields. It creates a query that would fetch the values for this fields from the db.

lockNotifyParent

public void lockNotifyParent(Object obj,
                             UnitOfWorkChangeSet changeSet,
                             UnitOfWorkImpl uow)

INTERNAL:

setQueryKeyFields

public void setQueryKeyFields(Map<DatabaseField,DatabaseField> queryKeyFields)

INTERNAL:

setQueryKeyFields

public void setQueryKeyFields(Map<DatabaseField,DatabaseField> queryKeyFields,
                              boolean lookForParentMapping)

INTERNAL:

setShouldHandleUnmappedFields

public void setShouldHandleUnmappedFields(boolean shouldHandleUnmappedFields)

INTERNAL: Indicates whether to expect unmapped fields. That should be set to true for UnidirectionalOneToManyMapping.

shouldHandleUnmappedFields

public boolean shouldHandleUnmappedFields()

INTERNAL: