de.fub.bytecode.classfile
Class ExceptionTable

java.lang.Object
  |
  +--de.fub.bytecode.classfile.Attribute
        |
        +--de.fub.bytecode.classfile.ExceptionTable
All Implemented Interfaces:
java.lang.Cloneable, Node

public final class ExceptionTable
extends Attribute

This class represents the table of exceptions that are thrown by a method. This attribute may be used once per method. The name of this class is ExceptionTable for historical reasons; The Java Virtual Machine Specification, Second Edition defines this attribute using the name Exceptions (which is inconsistent with the other classes).

Version:
$Id: ExceptionTable.java,v 1.6 2001/06/25 07:58:16 dahm Exp $
Author:
M. Dahm
See Also:
Code

Fields inherited from class de.fub.bytecode.classfile.Attribute
constant_pool, length, name_index, tag
 
Constructor Summary
ExceptionTable(ExceptionTable c)
          Initialize from another object.
ExceptionTable(int name_index, int length, int[] exception_index_table, 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 exceptions attribute to file stream in binary format.
 int[] getExceptionIndexTable()
           
 java.lang.String[] getExceptionNames()
           
 int getNumberOfExceptions()
           
 void setExceptionIndexTable(int[] exception_index_table)
           
 java.lang.String toString()
           
 
Methods inherited from class de.fub.bytecode.classfile.Attribute
clone, getConstantPool, getLength, getNameIndex, getTag, setConstantPool, setLength, setNameIndex
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ExceptionTable

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

ExceptionTable

public ExceptionTable(int name_index,
                      int length,
                      int[] exception_index_table,
                      ConstantPool constant_pool)
Parameters:
name_index - Index in constant pool
length - Content length in bytes
exception_index_table - Table of indices 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.
Overrides:
accept in class Attribute
Parameters:
v - Visitor object

dump

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

getExceptionIndexTable

public final int[] getExceptionIndexTable()
Returns:
Array of indices into constant pool of thrown exceptions.

getNumberOfExceptions

public final int getNumberOfExceptions()
Returns:
Length of exception table.

getExceptionNames

public final java.lang.String[] getExceptionNames()
Returns:
class names of thrown exceptions

setExceptionIndexTable

public final void setExceptionIndexTable(int[] exception_index_table)
Parameters:
exception_index_table. - Also redefines number_of_exceptions according to table length.

toString

public final java.lang.String toString()
Overrides:
toString in class Attribute
Returns:
String representation, i.e., a list of thrown exceptions.

copy

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