org.apache.tomcat.util.bcel.classfile
Class Constant

java.lang.Object
  org.apache.tomcat.util.bcel.classfile.Constant

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

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

public abstract class Constant
extends Object
implements Cloneable, 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.

Version:

$Id: Constant.java 992409 2010-09-03 18:35:59Z markt $

Author:

M. Dahm

See Also:

Serialized Form

Field Summary

protected byte

tag

Method Summary

Object	clone()
abstract void	dump(DataOutputStream file)
boolean	equals(Object obj) Return value as defined by given BCELComparator strategy.
byte	getTag()
int	hashCode() Return value as defined by given BCELComparator strategy.
String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

tag

protected byte tag

Method Detail

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.

clone

public Object clone()
             throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException

equals

public boolean equals(Object obj)

Return value as defined by given BCELComparator strategy. By default two Constant objects are said to be equal when the result of toString() is equal.

Overrides:

equals in class Object

See Also:

Object.equals(java.lang.Object)

hashCode

public int hashCode()

Return value as defined by given BCELComparator strategy. By default return the hashcode of the result of toString().

Overrides:

hashCode in class Object

See Also:

Object.hashCode()