jef.dna.attributes.impl
Class Signature

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

All Implemented Interfaces:

java.lang.Cloneable, Attribute, SignatureAttribute, BytesCountable

public class Signature
extends GenericAttribute
implements SignatureAttribute

Author:

frusso

Field Summary

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

attribFactory, attributeNameIndex, className, dna, instrFactory, length, logger

Constructor Summary

Signature()
Creates a new instance of Signature

Method Summary

java.lang.Object	clone() The clone() method will return a new instance whose reference to the containing Dna instance is not modified.
void	fromStream(java.io.DataInputStream dis, Dna dna, int nameIndex, int length) This method reads the data with which the attribute has to be initialized.
int	getBytesCount() This method must return the overall number of bytes required by the component implementing this interface.
int	getSignatureIndex() The value of thesignature_index item must be a valid index into the constant_pool table.
void	setSignatureIndex(int index) The value of thesignature_index item must be a valid index into the constant_pool 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, innerValidations, 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

Constructor Detail

Signature

public Signature()

Creates a new instance of Signature

Method Detail

clone

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

Description copied from class: GenericAttribute

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

Specified by:

clone in interface Attribute

Overrides:

clone in class GenericAttribute

Throws:

java.lang.CloneNotSupportedException

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

fromStream

public void fromStream(java.io.DataInputStream dis,
                       Dna dna,
                       int nameIndex,
                       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

nameIndex - 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

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

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

getSignatureIndex

public int getSignatureIndex()

Description copied from interface: SignatureAttribute

The value of thesignature_index item must be a valid index into the constant_pool table. The constant pool entry at that index must be a CONSTANT_Utf8_info (�4.5.7) structure representing either a class signature, if this signature attribute is an attribute of a ClassFile structure, a method type signature, if this signature is an attribuute of amethod_info structure, or a field type signature otherwise.

Specified by:

getSignatureIndex in interface SignatureAttribute

setSignatureIndex

public void setSignatureIndex(int index)

Description copied from interface: SignatureAttribute

The value of thesignature_index item must be a valid index into the constant_pool table. The constant pool entry at that index must be a CONSTANT_Utf8_info (�4.5.7) structure representing either a class signature, if this signature attribute is an attribute of a ClassFile structure, a method type signature, if this signature is an attribuute of amethod_info structure, or a field type signature otherwise.

Specified by:

setSignatureIndex in interface SignatureAttribute