org.apache.bcel.util

Class BCELifier

java.lang.Object

org.apache.bcel.classfile.EmptyVisitor

org.apache.bcel.util.BCELifier

All Implemented Interfaces:

Visitor

public class BCELifier
extends EmptyVisitor

This class takes a given JavaClass object and converts it to a Java program that creates that very class using BCEL. This gives new users of BCEL a useful example showing how things are done with BCEL. It does not cover all features of BCEL, but tries to mimic hand-written code as close as possible.

Version:

$Id: BCELifier.java 394939 2006-04-18 13:23:49Z tcurdt $

Author:

M. Dahm

Field Summary

Fields

Modifier and Type	Field and Description
private JavaClass	_clazz
private ConstantPoolGen	_cp
private PrintWriter	_out
private static int	FLAG_FOR_CLASS
private static int	FLAG_FOR_METHOD
private static int	FLAG_FOR_UNKNOWN

Constructor Summary

Constructors

Constructor and Description
BCELifier(JavaClass clazz, OutputStream out)

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] argv) Default main method
(package private) static String	printArgumentTypes(Type[] arg_types)
private void	printCreate()
(package private) static String	printFlags(int flags)
(package private) static String	printFlags(int flags, int reason)
private void	printMain()
(package private) static String	printType(String signature)
(package private) static String	printType(Type type)
void	start() Start Java code generation
void	visitField(Field field)
void	visitJavaClass(JavaClass clazz)
void	visitMethod(Method method)

Methods inherited from class org.apache.bcel.classfile.EmptyVisitor

visitCode, visitCodeException, visitConstantClass, visitConstantDouble, visitConstantFieldref, visitConstantFloat, visitConstantInteger, visitConstantInterfaceMethodref, visitConstantLong, visitConstantMethodref, visitConstantNameAndType, visitConstantPool, visitConstantString, visitConstantUtf8, visitConstantValue, visitDeprecated, visitExceptionTable, visitInnerClass, visitInnerClasses, visitLineNumber, visitLineNumberTable, visitLocalVariable, visitLocalVariableTable, visitSignature, visitSourceFile, visitStackMap, visitStackMapEntry, visitSynthetic, visitUnknown

Methods inherited from class java.lang.Object

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

Field Detail

FLAG_FOR_UNKNOWN

private static final int FLAG_FOR_UNKNOWN

See Also:

Constant Field Values

FLAG_FOR_CLASS

private static final int FLAG_FOR_CLASS

See Also:

Constant Field Values

FLAG_FOR_METHOD

private static final int FLAG_FOR_METHOD

See Also:

Constant Field Values

_clazz

private JavaClass _clazz

_out

private PrintWriter _out

_cp

private ConstantPoolGen _cp

Constructor Detail

BCELifier

public BCELifier(JavaClass clazz,
         OutputStream out)

Parameters:

clazz - Java class to "decompile"

out - where to output Java program

Method Detail

start

public void start()

Start Java code generation

visitJavaClass

public void visitJavaClass(JavaClass clazz)

Specified by:

visitJavaClass in interface Visitor

Overrides:

visitJavaClass in class EmptyVisitor

printCreate

private void printCreate()

printMain

private void printMain()

visitField

public void visitField(Field field)

Specified by:

visitField in interface Visitor

Overrides:

visitField in class EmptyVisitor

visitMethod

public void visitMethod(Method method)

Specified by:

visitMethod in interface Visitor

Overrides:

visitMethod in class EmptyVisitor

printFlags

static String printFlags(int flags)

printFlags

static String printFlags(int flags,
                int reason)

printArgumentTypes

static String printArgumentTypes(Type[] arg_types)

printType

static String printType(Type type)

printType

static String printType(String signature)

main

public static void main(String[] argv)
                 throws Exception

Default main method

Throws:

Exception