org.hibernate.bytecode.internal.javassist

Class JavassistClassTransformer

java.lang.Object

org.hibernate.bytecode.spi.AbstractClassTransformerImpl

org.hibernate.bytecode.internal.javassist.JavassistClassTransformer

All Implemented Interfaces:

ClassTransformer

public class JavassistClassTransformer
extends AbstractClassTransformerImpl

Enhance the classes allowing them to implements InterceptFieldEnabled This interface is then used by Hibernate for some optimizations.

Field Summary

Fields inherited from class org.hibernate.bytecode.spi.AbstractClassTransformerImpl

classFilter, fieldFilter

Constructor Summary

Constructors

Constructor and Description
JavassistClassTransformer(ClassFilter classFilter, FieldFilter fieldFilter) Constructs the JavassistClassTransformer

Method Summary

Methods

Modifier and Type	Method and Description
protected byte[]	doTransform(ClassLoader loader, String className, Class classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) Delegate the transformation call from AbstractClassTransformerImpl.transform(java.lang.ClassLoader, java.lang.String, java.lang.Class, java.security.ProtectionDomain, byte[])
protected FieldTransformer	getFieldTransformer(javassist.bytecode.ClassFile classfile, javassist.ClassPool classPool)

Methods inherited from class org.hibernate.bytecode.spi.AbstractClassTransformerImpl

transform

Methods inherited from class java.lang.Object

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

Constructor Detail

JavassistClassTransformer

public JavassistClassTransformer(ClassFilter classFilter,
                         FieldFilter fieldFilter)

Constructs the JavassistClassTransformer

Parameters:

classFilter - The filter used to determine which classes to transform

fieldFilter - The filter used to determine which fields to transform

Method Detail

doTransform

protected byte[] doTransform(ClassLoader loader,
                 String className,
                 Class classBeingRedefined,
                 ProtectionDomain protectionDomain,
                 byte[] classfileBuffer)

Description copied from class: AbstractClassTransformerImpl

Delegate the transformation call from AbstractClassTransformerImpl.transform(java.lang.ClassLoader, java.lang.String, java.lang.Class, java.security.ProtectionDomain, byte[])

Specified by:

doTransform in class AbstractClassTransformerImpl

Parameters:

loader - The class loader to use

className - The name of the class to transform

classBeingRedefined - If an already loaded class is being redefined, then pass this as a parameter

protectionDomain - The protection domain of the class being (re)defined

classfileBuffer - The bytes of the class file.

Returns:

The transformed (enhanced/instrumented) bytes.

getFieldTransformer

protected FieldTransformer getFieldTransformer(javassist.bytecode.ClassFile classfile,
                                   javassist.ClassPool classPool)