org.hibernate.bytecode.enhance.spi

Class DefaultEnhancementContext

java.lang.Object

org.hibernate.bytecode.enhance.spi.DefaultEnhancementContext

All Implemented Interfaces:

EnhancementContext

public class DefaultEnhancementContext
extends Object
implements EnhancementContext

default implementation of EnhancementContext. May be sub-classed as needed.

Author:

Luis Barreiro

Constructor Summary

Constructors

Constructor and Description
DefaultEnhancementContext()

Method Summary

Modifier and Type	Method and Description
boolean	doBiDirectionalAssociationManagement(javassist.CtField field) Should we manage association of bi-directional persistent attributes for this field?
boolean	doDirtyCheckingInline(javassist.CtClass classDescriptor) Should we in-line dirty checking for persistent attributes for this class?
boolean	doExtendedEnhancement(javassist.CtClass classDescriptor) Should we enhance field access to entities from this class?
ClassLoader	getLoadingClassLoader() Obtain access to the ClassLoader that can be used to load Class references.
boolean	hasLazyLoadableAttributes(javassist.CtClass classDescriptor) Does the given class define any lazy loadable attributes?
boolean	isCompositeClass(javassist.CtClass classDescriptor) look for @Embeddable annotation
boolean	isEntityClass(javassist.CtClass classDescriptor) look for @Entity annotation
boolean	isLazyLoadable(javassist.CtField field) Determine if a field is lazy loadable.
boolean	isMappedCollection(javassist.CtField field) look for @OneToMany, @ManyToMany and @ElementCollection annotations
boolean	isMappedSuperclassClass(javassist.CtClass classDescriptor) look for @MappedSuperclass annotation
boolean	isPersistentField(javassist.CtField ctField) look for @Transient annotation
javassist.CtField[]	order(javassist.CtField[] persistentFields) keep the same order.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEnhancementContext

public DefaultEnhancementContext()

Method Detail

getLoadingClassLoader

public ClassLoader getLoadingClassLoader()

Description copied from interface: EnhancementContext

Obtain access to the ClassLoader that can be used to load Class references. In JPA SPI terms, this should be a "temporary class loader" as defined by PersistenceUnitInfo.getNewTempClassLoader()

Specified by:

getLoadingClassLoader in interface EnhancementContext

Returns:

the classloader for this class

isEntityClass

public boolean isEntityClass(javassist.CtClass classDescriptor)

look for @Entity annotation

Specified by:

isEntityClass in interface EnhancementContext

Parameters:

classDescriptor - The descriptor of the class to check.

Returns:

true if the class is an entity; false otherwise.

isCompositeClass

public boolean isCompositeClass(javassist.CtClass classDescriptor)

look for @Embeddable annotation

Specified by:

isCompositeClass in interface EnhancementContext

Parameters:

classDescriptor - The descriptor of the class to check.

Returns:

true if the class is an embeddable/component; false otherwise.

isMappedSuperclassClass

public boolean isMappedSuperclassClass(javassist.CtClass classDescriptor)

look for @MappedSuperclass annotation

Specified by:

isMappedSuperclassClass in interface EnhancementContext

Parameters:

classDescriptor - The descriptor of the class to check.

Returns:

true if the class is an mapped super class; false otherwise.

doBiDirectionalAssociationManagement

public boolean doBiDirectionalAssociationManagement(javassist.CtField field)

Description copied from interface: EnhancementContext

Should we manage association of bi-directional persistent attributes for this field?

Specified by:

doBiDirectionalAssociationManagement in interface EnhancementContext

Parameters:

field - The field to check.

Returns:

true

doDirtyCheckingInline

public boolean doDirtyCheckingInline(javassist.CtClass classDescriptor)

Description copied from interface: EnhancementContext

Should we in-line dirty checking for persistent attributes for this class?

Specified by:

doDirtyCheckingInline in interface EnhancementContext

Parameters:

classDescriptor - The descriptor of the class to check.

Returns:

true

doExtendedEnhancement

public boolean doExtendedEnhancement(javassist.CtClass classDescriptor)

Description copied from interface: EnhancementContext

Should we enhance field access to entities from this class?

Specified by:

doExtendedEnhancement in interface EnhancementContext

Parameters:

classDescriptor - The descriptor of the class to check.

Returns:

false

hasLazyLoadableAttributes

public boolean hasLazyLoadableAttributes(javassist.CtClass classDescriptor)

Description copied from interface: EnhancementContext

Does the given class define any lazy loadable attributes?

Specified by:

hasLazyLoadableAttributes in interface EnhancementContext

Parameters:

classDescriptor - The class to check

Returns:

true

isLazyLoadable

public boolean isLazyLoadable(javassist.CtField field)

Description copied from interface: EnhancementContext

Determine if a field is lazy loadable.

Specified by:

isLazyLoadable in interface EnhancementContext

Parameters:

field - The field to check

Returns:

true

isPersistentField

public boolean isPersistentField(javassist.CtField ctField)

look for @Transient annotation

Specified by:

isPersistentField in interface EnhancementContext

Parameters:

ctField - The field reference.

Returns:

true if the field is ; false otherwise.

isMappedCollection

public boolean isMappedCollection(javassist.CtField field)

look for @OneToMany, @ManyToMany and @ElementCollection annotations

Specified by:

isMappedCollection in interface EnhancementContext

Parameters:

field - the field to check

Returns:

true if the field is mapped

order

public javassist.CtField[] order(javassist.CtField[] persistentFields)

keep the same order.

Specified by:

order in interface EnhancementContext

Parameters:

persistentFields - The persistent field references.

Returns:

The ordered references.