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Class DE.fub.inf.JVM.JavaClass.ConstantValue

java.lang.Object
  |
  +--DE.fub.inf.JVM.JavaClass.Attribute
        |
        +--DE.fub.inf.JVM.JavaClass.ConstantValue

public final class ConstantValue
extends Attribute
This class is derived from Attribute and represents a constant value, i.e. a default value for initializing a class field. This class is instantiated by the Attribute.readAttribute() method.

Version:
$Id: ConstantValue.java,v 1.1 1998/07/01 13:08:31 dahm Exp $
Author:
M. Dahm
See Also:
Attribute

Fields inherited from class DE.fub.inf.JVM.JavaClass.Attribute
constant_pool, length, name_index, tag
 
Constructor Summary
ConstantValue(ConstantValue c)
          Initialize from another object.
ConstantValue(int name_index, int length, int constantvalue_index, ConstantPool constant_pool)
           
 
Method Summary
void accept(Visitor v)
          Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class.
Attribute copy(ConstantPool constant_pool)
           
void dump(java.io.DataOutputStream file)
          Dump constant value attribute to file stream on binary format.
int getConstantValueIndex()
           
void setConstantValueIndex(int constantvalue_index)
           
java.lang.String toString()
           
 
Methods inherited from class DE.fub.inf.JVM.JavaClass.Attribute
accept, clone, copy, dump, getConstantPool, getLength, getNameIndex, getTag, setConstantPool, setLength, setNameIndex, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notifyAll, notify, toString, wait, wait, wait
 

Constructor Detail

ConstantValue

public ConstantValue(ConstantValue c)
Initialize from another object. Note that both objects use the same references (shallow copy). Use clone() for a physical copy.

ConstantValue

public ConstantValue(int name_index,
                     int length,
                     int constantvalue_index,
                     ConstantPool constant_pool)
Parameters:
name_index - Name index in constant pool
length - Content length in bytes
constantvalue_index - Index in constant pool
constant_pool - Array of constants
Method Detail

accept

public 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.
Parameters:
v - Visitor object
Overrides:
accept in class Attribute

dump

public final void dump(java.io.DataOutputStream file)
               throws java.io.IOException
Dump constant value attribute to file stream on binary format.
Parameters:
file - Output file stream
Overrides:
dump in class Attribute

getConstantValueIndex

public final int getConstantValueIndex()
Returns:
Index in constant pool of constant value.

setConstantValueIndex

public final void setConstantValueIndex(int constantvalue_index)
Parameters:
constantvalue_index. -  

toString

public final java.lang.String toString()
                               throws java.lang.InternalError
Returns:
String representation of constant value.
Overrides:
toString in class Attribute

copy

public Attribute copy(ConstantPool constant_pool)
Returns:
deep copy of this attribute
Overrides:
copy in class Attribute

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