org.hibernate.bytecode.enhance.spi

Class Enhancer

java.lang.Object

org.hibernate.bytecode.enhance.spi.Enhancer

Direct Known Subclasses:

CompositeEnhancer, EntityEnhancer, PersistentAttributesEnhancer

public class Enhancer
extends Object

Class responsible for performing enhancement.

Author:

Steve Ebersole, Jason Greene

Field Summary

Fields

Modifier and Type	Field and Description
protected javassist.CtClass	attributeInterceptableCtClass
protected javassist.CtClass	attributeInterceptorCtClass
protected javassist.ClassPool	classPool
protected EnhancementContext	enhancementContext
protected javassist.CtClass	entityEntryCtClass
protected javassist.CtClass	managedCompositeCtClass
protected javassist.CtClass	managedEntityCtClass

Constructor Summary

Constructors

Constructor and Description
Enhancer(EnhancementContext enhancementContext) Constructs the Enhancer, using the given context.

Method Summary

Modifier and Type	Method and Description
protected void	addInterceptorHandling(javassist.CtClass managedCtClass)
byte[]	enhance(String className, byte[] originalBytes) Performs the enhancement.
byte[]	enhanceComposite(String className, byte[] originalBytes) Deprecated. Should use enhance(String, byte[]) and a proper EnhancementContext

Methods inherited from class java.lang.Object

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

Field Detail

enhancementContext

protected final EnhancementContext enhancementContext

classPool

protected final javassist.ClassPool classPool

managedEntityCtClass

protected final javassist.CtClass managedEntityCtClass

managedCompositeCtClass

protected final javassist.CtClass managedCompositeCtClass

attributeInterceptorCtClass

protected final javassist.CtClass attributeInterceptorCtClass

attributeInterceptableCtClass

protected final javassist.CtClass attributeInterceptableCtClass

entityEntryCtClass

protected final javassist.CtClass entityEntryCtClass

Constructor Detail

Enhancer

public Enhancer(EnhancementContext enhancementContext)

Constructs the Enhancer, using the given context.

Parameters:

enhancementContext - Describes the context in which enhancement will occur so as to give access to contextual/environmental information.

Method Detail

enhance

public byte[] enhance(String className,
                      byte[] originalBytes)
               throws EnhancementException

Performs the enhancement.

Parameters:

className - The name of the class whose bytecode is being enhanced.

originalBytes - The class's original (pre-enhancement) byte code

Returns:

The enhanced bytecode. Could be the same as the original bytecode if the original was already enhanced or we could not enhance it for some reason.

Throws:

EnhancementException - Indicates a problem performing the enhancement

addInterceptorHandling

protected void addInterceptorHandling(javassist.CtClass managedCtClass)

enhanceComposite

@Deprecated
public byte[] enhanceComposite(String className,
                                           byte[] originalBytes)
                                    throws EnhancementException

Deprecated. Should use enhance(String, byte[]) and a proper EnhancementContext

Throws:

EnhancementException