jdk7u.jaxp.org.apache.bcel.external.classfile

Class Constant

java.lang.Object

jdk7u.jaxp.org.apache.bcel.external.classfile.Constant

All Implemented Interfaces:

Serializable, Cloneable, Node

Direct Known Subclasses:

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

public abstract class Constant
extends Object
implements Cloneable, Node, Serializable

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.

Author:

M. Dahm

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected byte	tag

Method Summary

Methods

Modifier and Type	Method and Description
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.
Object	clone()
Constant	copy()
abstract void	dump(DataOutputStream file)
byte	getTag()
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(DataOutputStream file)
                   throws IOException

Throws:

IOException

getTag

public final byte getTag()

Returns:

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

toString

public String toString()

Overrides:

toString in class Object

Returns:

String representation.

copy

public Constant copy()

Returns:

deep copy of this constant

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException