de.fub.bytecode.classfile
Class Constant

java.lang.Object
  |
  +--de.fub.bytecode.classfile.Constant

All Implemented Interfaces:

java.lang.Cloneable, Node

Direct Known Subclasses:

ConstantClass, ConstantCP, ConstantDouble, ConstantFloat, ConstantInteger, ConstantLong, ConstantNameAndType, ConstantString, ConstantUtf8

public abstract class Constant

extends java.lang.Object

implements java.lang.Cloneable, Node

Abstract superclass for classes to represent the different constant types in the constant pool of a class file. The classes keep closely to the JVM specification.

Version:

$Id: Constant.java,v 1.5 2001/06/11 11:38:08 dahm Exp $

Author:

M. Dahm

Field Summary

protected byte

tag

Method Summary

abstract void	accept(Visitor v) Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
java.lang.Object	clone()
Constant	copy()
abstract void	dump(java.io.DataOutputStream file)
byte	getTag()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

tag

protected byte tag

Method Detail

accept

public abstract void accept(Visitor v)

Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.

Specified by:

accept in interface Node

Parameters:

v - Visitor object

dump

public abstract void dump(java.io.DataOutputStream file)
                   throws java.io.IOException

getTag

public final byte getTag()

Returns:

Tag of constant, i.e., its type. No setTag() method to avoid confusion.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

String representation.

copy

public Constant copy()

Returns:

deep copy of this constant

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Overrides:

clone in class java.lang.Object