jef.dna.attributes.impl
Class LineNumberTableEntry

java.lang.Object
  jef.dna.attributes.impl.LineNumberTableEntry

All Implemented Interfaces:

java.lang.Cloneable, LineNumberTableEntry, BytesCountable

public class LineNumberTableEntry
extends java.lang.Object
implements LineNumberTableEntry

Class representing a Line Number Table instance's entry.

Author:

Francesco Russo frusso@cs.unibo.it

Field Summary

protected static Logger

logger

Constructor Summary

LineNumberTableEntry()
Creates a new instance of LineNumberTableEntry

Method Summary

java.lang.Object	clone() The clone() method will return a new instance whose reference to the containing LineNumberTableAttribute is not modified.
void	fromStream(java.io.DataInputStream dis) Reads the line number table entry from the given input stream.
LineNumberTableAttribute	getAttributeContainer() Get the LineNumberTableAttribute containing the current LineNumberTableEntry
int	getBytesCount() This method must return the overall number of bytes required by the component implementing this interface.
int	getLineNumber() The value of the line_number item must give the corresponding line number in the original source file
int	getStartPc() The value of the start_pc item must indicate the index into the code array at which the code for a new line in the original source file begins.
void	setAttributeContainer(LineNumberTableAttribute attr) Set the LineNumberTableAttribute containing the current LineNumberTableEntry
void	setLineNumber(int lineNumber) The value of the line_number item must give the corresponding line number in the original source file
void	setStartPc(int startPc) The value of the start_pc item must indicate the index into the code array at which the code for a new line in the original source file begins.
void	toStream(java.io.DataOutputStream dos) Writes the line number table entry to the given output stream.
void	validate() Performs the validation of the current LineNumberTableEntry.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected static Logger logger

Constructor Detail

LineNumberTableEntry

public LineNumberTableEntry()

Creates a new instance of LineNumberTableEntry

Method Detail

setStartPc

public void setStartPc(int startPc)

Description copied from interface: LineNumberTableEntry

The value of the start_pc item must indicate the index into the code array at which the code for a new line in the original source file begins. The value of start_pc must be less than the value of the code_length item of the Code attribute of which this LineNumberTable is an attribute

Specified by:

setStartPc in interface LineNumberTableEntry

Parameters:

startPc - A valid value as defined above

getStartPc

public int getStartPc()

Description copied from interface: LineNumberTableEntry

The value of the start_pc item must indicate the index into the code array at which the code for a new line in the original source file begins. The value of start_pc must be less than the value of the code_length item of the Code attribute of which this LineNumberTable is an attribute

Specified by:

getStartPc in interface LineNumberTableEntry

Returns:

int A valid value as defined above

setLineNumber

public void setLineNumber(int lineNumber)

Description copied from interface: LineNumberTableEntry

The value of the line_number item must give the corresponding line number in the original source file

Specified by:

setLineNumber in interface LineNumberTableEntry

Parameters:

lineNumber - The line number value

getLineNumber

public int getLineNumber()

Description copied from interface: LineNumberTableEntry

The value of the line_number item must give the corresponding line number in the original source file

Specified by:

getLineNumber in interface LineNumberTableEntry

Returns:

int The line number value

setAttributeContainer

public void setAttributeContainer(LineNumberTableAttribute attr)

Description copied from interface: LineNumberTableEntry

Set the LineNumberTableAttribute containing the current LineNumberTableEntry

Specified by:

setAttributeContainer in interface LineNumberTableEntry

Parameters:

attr - The container

getAttributeContainer

public LineNumberTableAttribute getAttributeContainer()

Description copied from interface: LineNumberTableEntry

Get the LineNumberTableAttribute containing the current LineNumberTableEntry

Specified by:

getAttributeContainer in interface LineNumberTableEntry

Returns:

LineNumberTableAttribute The container

toStream

public void toStream(java.io.DataOutputStream dos)
              throws java.io.IOException

Description copied from interface: LineNumberTableEntry

Writes the line number table entry to the given output stream.

Specified by:

toStream in interface LineNumberTableEntry

Parameters:

dos - The output stream the line number table entry has to be written to

Throws:

java.io.IOException - Something went wrong with the given stream

fromStream

public void fromStream(java.io.DataInputStream dis)
                throws java.io.IOException

Description copied from interface: LineNumberTableEntry

Reads the line number table entry from the given input stream.

Specified by:

fromStream in interface LineNumberTableEntry

Parameters:

dis - The input stream the line number table entry has to be read from

Throws:

java.io.IOException - Something went wrong with the given stream

validate

public void validate()
              throws MissingAttributeContainerException,
                     LineNumberTableEntryValidationException

Description copied from interface: LineNumberTableEntry

Performs the validation of the current LineNumberTableEntry.

Specified by:

validate in interface LineNumberTableEntry

Throws:

MissingAttributeContainerException

LineNumberTableEntryValidationException

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

The clone() method will return a new instance whose reference to the containing LineNumberTableAttribute is not modified.

Specified by:

clone in interface LineNumberTableEntry

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException

getBytesCount

public int getBytesCount()

Description copied from interface: BytesCountable

This method must return the overall number of bytes required by the component implementing this interface.

Specified by:

getBytesCount in interface BytesCountable