org.jboss.aop.instrument
Class FieldAccessTransformer

java.lang.Object
  org.jboss.aop.instrument.FieldAccessTransformer

All Implemented Interfaces:

org.jboss.aop.instrument.CodeConversionObserver

public class FieldAccessTransformer

extends Object

implements org.jboss.aop.instrument.CodeConversionObserver

Author:

Kabir Khan

Constructor Summary

FieldAccessTransformer(Instrumentor instrumentor)

Method Summary

void	buildFieldWrappers(javassist.CtClass clazz, ClassAdvisor advisor)
void	codeConverted() Notifies this transformer that the code conversion is done.
boolean	replaceFieldAccess(List fields, javassist.CtClass clazz, ClassAdvisor fieldsAdvisor) replace field access for possible public/protected fields that are intercepted don't need to replace access for private fields.
void	unwrap(javassist.CtClass clazz, Collection fieldsGet, Collection fieldsSet) Unwraps the field joinpoints contained in fieldsGet and fieldsSet.
void	wrap(javassist.CtClass clazz, Collection fieldsGet, Collection fieldsSet) Wraps the field joinpoints contained in fieldsGet and fieldsSet.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldAccessTransformer

public FieldAccessTransformer(Instrumentor instrumentor)

Method Detail

buildFieldWrappers

public void buildFieldWrappers(javassist.CtClass clazz,
                               ClassAdvisor advisor)
                        throws javassist.NotFoundException,
                               javassist.CannotCompileException

Throws:

javassist.NotFoundException

javassist.CannotCompileException

replaceFieldAccess

public boolean replaceFieldAccess(List fields,
                                  javassist.CtClass clazz,
                                  ClassAdvisor fieldsAdvisor)
                           throws javassist.NotFoundException

replace field access for possible public/protected fields that are intercepted don't need to replace access for private fields.

Parameters:

clazz -

fieldsAdvisor -

Returns:

Throws:

javassist.NotFoundException

wrap

public void wrap(javassist.CtClass clazz,
                 Collection fieldsGet,
                 Collection fieldsSet)
          throws javassist.CannotCompileException,
                 javassist.NotFoundException

Wraps the field joinpoints contained in fieldsGet and fieldsSet.

Parameters:

clazz - the class being instrumented.

fieldsGet - a collection of java.lang.Integer indentifying the field reads to be wrapped.

fieldsSet - a collection of java.lang.Integer indentifying the field writes to be wrapped.

Throws:

javassist.CannotCompileException

javassist.NotFoundException

unwrap

public void unwrap(javassist.CtClass clazz,
                   Collection fieldsGet,
                   Collection fieldsSet)
            throws javassist.CannotCompileException,
                   javassist.NotFoundException

Unwraps the field joinpoints contained in fieldsGet and fieldsSet.

Parameters:

clazz - the class being instrumented.

fieldsGet - a collection of java.lang.Integer indentifying the field reads to be unwrapped.

fieldsSet - a collection of java.lang.Integer indentifying the field writes to be unwrapped.

Throws:

javassist.CannotCompileException

javassist.NotFoundException

codeConverted

public void codeConverted()
                   throws javassist.NotFoundException,
                          javassist.CannotCompileException

Notifies this transformer that the code conversion is done.

Specified by:

codeConverted in interface org.jboss.aop.instrument.CodeConversionObserver

Throws:

javassist.NotFoundException

javassist.CannotCompileException