org.multijava.util.classfile
Class ConstantValueAttribute

java.lang.Object
  org.multijava.util.classfile.Attribute
      org.multijava.util.classfile.ConstantValueAttribute

public class ConstantValueAttribute

extends Attribute

VMS 4.7.3: Constant Value Attribute A ConstantValue attribute represents the value of a constant field that must be (explicitly or implicitly) static

Field Summary
private static AsciiConstant	attr
private  PooledConstant	value

 

Constructor Summary

ConstantValueAttribute(java.io.DataInput in, ConstantPool cp)           Constructs a constant value attribute from a class file stream.

ConstantValueAttribute(java.lang.Object value)           Create a new constant attribute whose constant value is picked up from constant pool with the given entry.

 

Method Summary
(package private)  java.lang.Object	getLiteral()           Returns the value of the constant value attribute
protected  int	getSize()           Returns the space in bytes used by this attribute in the classfile
protected  int	getTag()           Returns the attribute's tag
protected  void	resolveConstants(ConstantPool cp)           Insert or check location of constant value on constant pool
protected  void	write(ConstantPool cp, java.io.DataOutput out)           Write this class into the the file (out) getting data position from the constant pool

 

Methods inherited from class java.lang.Object

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

 

Field Detail

attr

private static AsciiConstant attr

value

private PooledConstant value

ConstantValueAttribute

public ConstantValueAttribute(java.lang.Object value)

Create a new constant attribute whose constant value is picked up from constant pool with the given entry.

Parameters:

value - the value

ConstantValueAttribute

public ConstantValueAttribute(java.io.DataInput in,
                              ConstantPool cp)
                       throws java.io.IOException,
                              ClassFileFormatException

Constructs a constant value attribute from a class file stream.

Parameters:

in - the stream to read from

cp - the constant pool

Throws:

java.io.IOException - an io problem has occured

ClassFileFormatException - attempt to write a bad classfile info

getTag

protected int getTag()

Returns the attribute's tag

getSize

protected int getSize()

Returns the space in bytes used by this attribute in the classfile

getLiteral

java.lang.Object getLiteral()

Returns the value of the constant value attribute

resolveConstants

protected void resolveConstants(ConstantPool cp)

Insert or check location of constant value on constant pool

Parameters:

cp - the constant pool for this class

write

protected void write(ConstantPool cp,
                     java.io.DataOutput out)
              throws java.io.IOException

Write this class into the the file (out) getting data position from the constant pool

Parameters:

cp - the constant pool that contain all data

out - the file where to write this object info

Throws:

java.io.IOException - an io problem has occured