org.apache.bcel.classfile
Class Unknown

java.lang.Object
  |
  +--org.apache.bcel.classfile.Attribute
        |
        +--org.apache.bcel.classfile.Unknown
All Implemented Interfaces:
java.lang.Cloneable, Node, java.io.Serializable

public final class Unknown
extends Attribute

This class represents a reference to an unknown (i.e., application-specific) attribute of a class. It is instantiated from the Attribute.readAttribute() method. Applications that need to read in application-specific attributes should create an AttributeReader implementation and attach it via Attribute.addAttributeReader.

Version:
$Id: Unknown.java,v 1.3 2002/03/11 16:16:35 mdahm Exp $
Author:
M. Dahm
See Also:
Attribute, AttributeReader, Serialized Form

Field Summary
 
Fields inherited from class org.apache.bcel.classfile.Attribute
constant_pool, length, name_index, tag
 
Constructor Summary
Unknown(int name_index, int length, byte[] bytes, ConstantPool constant_pool)
          Create a non-standard attribute.
Unknown(Unknown c)
          Initialize from another object.
 
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 unknown bytes to file stream.
 byte[] getBytes()
           
 java.lang.String getName()
           
 void setBytes(byte[] bytes)
           
 java.lang.String toString()
           
 
Methods inherited from class org.apache.bcel.classfile.Attribute
addAttributeReader, clone, getConstantPool, getLength, getNameIndex, getTag, readAttribute, removeAttributeReader, setConstantPool, setLength, setNameIndex
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Unknown

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


Unknown

public Unknown(int name_index,
               int length,
               byte[] bytes,
               ConstantPool constant_pool)
Create a non-standard attribute.

Parameters:
name_index - Index in constant pool
length - Content length in bytes
bytes - Attribute contents
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.

Specified by:
accept in interface Node
Specified by:
accept in class Attribute
Parameters:
v - Visitor object

dump

public final void dump(java.io.DataOutputStream file)
                throws java.io.IOException
Dump unknown bytes to file stream.

Overrides:
dump in class Attribute
Parameters:
file - Output file stream
Throws:
java.io.IOException

getBytes

public final byte[] getBytes()
Returns:
data bytes.

getName

public final java.lang.String getName()
Returns:
name of attribute.

setBytes

public final void setBytes(byte[] bytes)

toString

public final java.lang.String toString()
Overrides:
toString in class Attribute
Returns:
String representation.

copy

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


Copyright © 2002-2003 Apache Software Foundation. All Rights Reserved.