jef.dna.attributes.impl
Class LocalVariableTableAttribute

java.lang.Object
  jef.dna.attributes.impl.GenericAttribute
      jef.dna.attributes.impl.LocalVariableTableAttribute

All Implemented Interfaces:

java.lang.Cloneable, Attribute, LocalVariableTableAttribute, BytesCountable

@ContainedInCodeAttribute(containerPropertyName="attributeContainer")
public class LocalVariableTableAttribute
extends GenericAttribute
implements LocalVariableTableAttribute

Class representing a Local Variable Table Attribute.

Author:

Francesco Russo frusso@cs.unibo.it

Field Summary

protected static Logger

logger

Fields inherited from class jef.dna.attributes.impl.GenericAttribute

attribFactory, attributeNameIndex, dna, instrFactory, length

Constructor Summary

LocalVariableTableAttribute()
Creates a new instance of LocalVariableTableAttribute

Method Summary

java.lang.Object	clone() The clone() method will return a new instance whose reference to the containing CodeAttribute is not modified.
void	fromStream(java.io.DataInputStream dis, Dna dna, int indexName, int length) This method reads the data with which the attribute has to be initialized.
CodeAttribute	getAttributeContainer() Get the reference to the CodeAttribute containing the current LocalVariableTableAttribute.
int	getBytesCount() This method must return the overall number of bytes required by the component implementing this interface.
java.util.List<LocalVariableTableEntry>	getLocalVariableTable() Each entry in the local_variable_table array indicates a range of code array offsets within which a local variable has a value.
int	getLocalVariableTableLength() The value of the local_variable_table_length item indicates the number of entries in the local_variable_table array.
protected void	innerValidations(ConstantPoolTable cpt)
void	setAttributeContainer(CodeAttribute attribute) Set the reference to the CodeAttribute containing the current LocalVariableTableAttribute.
void	setLocalVariableTable(java.util.List<LocalVariableTableEntry> table)
void	toStream(java.io.DataOutputStream dos) This method writes the attribute to the provided output stream.
void	updateRefs(int offset) This method updates all the references pointing to constant pool table's entries this attributes holds.

Methods inherited from class jef.dna.attributes.impl.GenericAttribute

getDna, getLength, getNameIndex, setDna, setNameIndex, validate, validateNameIndex

Methods inherited from class java.lang.Object

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

Methods inherited from interface jef.dna.attributes.Attribute

getDna, getLength, getNameIndex, setDna, setNameIndex, validate

Field Detail

logger

protected static Logger logger

Constructor Detail

LocalVariableTableAttribute

public LocalVariableTableAttribute()

Creates a new instance of LocalVariableTableAttribute

Method Detail

getLocalVariableTableLength

public int getLocalVariableTableLength()

Description copied from interface: LocalVariableTableAttribute

The value of the local_variable_table_length item indicates the number of entries in the local_variable_table array.

Specified by:

getLocalVariableTableLength in interface LocalVariableTableAttribute

Returns:

int The dimension of the local variable table

setLocalVariableTable

public void setLocalVariableTable(java.util.List<LocalVariableTableEntry> table)

getLocalVariableTable

public java.util.List<LocalVariableTableEntry> getLocalVariableTable()

Description copied from interface: LocalVariableTableAttribute

Each entry in the local_variable_table array indicates a range of code array offsets within which a local variable has a value. It also indicates the index into the local variable array of the current frame at which that local variable can be found.

Specified by:

getLocalVariableTable in interface LocalVariableTableAttribute

Returns:

List The local variable table shaped as a List storing LocalVariableTableEntry instances

setAttributeContainer

public void setAttributeContainer(CodeAttribute attribute)

Description copied from interface: LocalVariableTableAttribute

Set the reference to the CodeAttribute containing the current LocalVariableTableAttribute.

Specified by:

setAttributeContainer in interface LocalVariableTableAttribute

Parameters:

attribute - The container

getAttributeContainer

public CodeAttribute getAttributeContainer()

Description copied from interface: LocalVariableTableAttribute

Get the reference to the CodeAttribute containing the current LocalVariableTableAttribute.

Specified by:

getAttributeContainer in interface LocalVariableTableAttribute

Returns:

CodeAttribute The container

toStream

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

Description copied from interface: Attribute

This method writes the attribute to the provided output stream.

Specified by:

toStream in interface Attribute

Parameters:

dos - The output stream

Throws:

DnaSerializationException - Errors while writing the attribute to the output stream

fromStream

public void fromStream(java.io.DataInputStream dis,
                       Dna dna,
                       int indexName,
                       int length)
                throws DnaDeserializationException,
                       MissingDnaContainerException

Description copied from interface: Attribute

This method reads the data with which the attribute has to be initialized.

Specified by:

fromStream in interface Attribute

Parameters:

dis - The input stream

dna - The Dna instance this class belongs to

indexName - The value of the name index

length - The length of the attribute

Throws:

DnaDeserializationException - Errors while reading the attribute from the stream

MissingDnaContainerException - There is no reference to the current Dna container

updateRefs

public void updateRefs(int offset)

Description copied from interface: Attribute

This method updates all the references pointing to constant pool table's entries this attributes holds.

Specified by:

updateRefs in interface Attribute

Specified by:

updateRefs in class GenericAttribute

Parameters:

offset - The offset

innerValidations

protected void innerValidations(ConstantPoolTable cpt)
                         throws AttributeValidationException,
                                AttributeOutOfRangeException,
                                MissingDnaContainerException,
                                MissingCPTableException

Overrides:

innerValidations in class GenericAttribute

Throws:

AttributeValidationException

AttributeOutOfRangeException

MissingDnaContainerException

MissingCPTableException

clone

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

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

Specified by:

clone in interface Attribute

Overrides:

clone in class GenericAttribute

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