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