joie
Class Member

java.lang.Object
  |
  +--joie.Member

All Implemented Interfaces:

FilterObject

Direct Known Subclasses:

Field, Method

public abstract class Member

extends java.lang.Object

implements FilterObject

Defines a Member of a class as it is represented in the classfile. field_info/method_info { u2 access_flags; u2 name_index; u2 descriptor_index; u2 attributes_count; attribute_info attributes[attributes_count]; }

Version:

0.9

Author:

Geoff Cohen, Olaf Görlitz

Field Summary

protected Modifiers	access_flags
protected int	acount
protected ShortCount	attr_count
protected Attribute[]	attribs
protected ClassInfo	cinfo
protected ConstantPool	cpool
protected java.lang.String	desc
protected int	desc_index
protected java.lang.String	name
protected int	name_index

Fields inherited from interface joie.io.FilterObject

APPENDED, CLEAN, DIRTY, DIRTY_IN_PLACE, DIRTY_SAME_SIZE

Constructor Summary

protected	Member() Protected to prevent from unwanted instantiation.
protected	Member(java.lang.String name, java.lang.String descriptor) Creates a new member with the given name and descriptor.

Method Summary

void	addAttribute(Attribute attr)
void	assignClassInfo(ClassInfo classinfo) Assigns a new ClassInfo reference to the class member.
Attribute[]	getAttributes()
java.lang.String	getClassName()
protected int	getDescIndex() Returns the desc_index.
java.lang.String	getDescriptor() Returns the descriptor of the Member.
Modifiers	getModifiers()
java.lang.String	getName() Returns the name of the Member.
protected int	getNameIndex() Returns the name_index.
int	getStatus()
protected void	init() Initialized a new object.
void	readFromByteStream(ByteStream in) Reads the Member information from the input stream.
protected void	rebind() Assigns new indexes into the Constant Pool depending on the currently set name and description.
void	resolve() Resolves the indexes.
void	serialize(ByteStream bs)
void	serializeAppend(ByteStream bs)
void	serializeInPlace(ByteStream bs)
protected void	setClassInfo(ClassInfo cinfo) Sets the new ClassInfo reference.
java.lang.String	toString()
static void	write(ByteStream out, java.lang.Object[] members) Writes all member objects (fields or methods) in the given array to the output stream.

Methods inherited from class java.lang.Object

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

Field Detail

access_flags

protected Modifiers access_flags

name_index

protected int name_index

desc_index

protected int desc_index

attr_count

protected ShortCount attr_count

acount

protected int acount

attribs

protected Attribute[] attribs

cinfo

protected ClassInfo cinfo

cpool

protected ConstantPool cpool

name

protected java.lang.String name

desc

protected java.lang.String desc

Constructor Detail

Member

protected Member()

Protected to prevent from unwanted instantiation.

Member

protected Member(java.lang.String name,
                 java.lang.String descriptor)

Creates a new member with the given name and descriptor.

Parameters:

name - the member's name

descriptor - the member's descriptor

Method Detail

readFromByteStream

public void readFromByteStream(ByteStream in)
                        throws java.io.IOException

Reads the Member information from the input stream.

Parameters:

in - the input stream

Throws:

java.io.IOException - if an I/O Error occurs

write

public static void write(ByteStream out,
                         java.lang.Object[] members)
                  throws java.io.IOException

Writes all member objects (fields or methods) in the given array to the output stream.

Parameters:

out - the output stream

members - the array of Member objects

Throws:

java.io.IOException - if an I/O error occurs

addAttribute

public void addAttribute(Attribute attr)

assignClassInfo

public void assignClassInfo(ClassInfo classinfo)

Assigns a new ClassInfo reference to the class member. If the class member is uninitialized the new ClassInfo is set and the class member will be initialized. If the object is already initialized it will be rebound to the new ClassInfo reference. Therefore the indexes are resolved, the new ClassInfo reference is set and the indexes are bound to the new reference.

Parameters:

classinfo - the ClassInfo reference

setClassInfo

protected void setClassInfo(ClassInfo cinfo)

Sets the new ClassInfo reference.

Parameters:

cinfo - the ClassInfo

init

protected void init()

Initialized a new object.

rebind

protected void rebind()

Assigns new indexes into the Constant Pool depending on the currently set name and description.

resolve

public void resolve()

Resolves the indexes.

Throws:

JOIEException - if the name can not be resolved

getNameIndex

protected int getNameIndex()

Returns the name_index.

Returns:

the name_index

getName

public java.lang.String getName()

Returns the name of the Member.

Returns:

the name

Throws:

JOIEException - if the index is wrong

getDescIndex

protected int getDescIndex()

Returns the desc_index.

Returns:

the desc_index

getDescriptor

public java.lang.String getDescriptor()

Returns the descriptor of the Member.

Returns:

the descriptor

Throws:

JOIEException - if the index is wrong

getClassName

public java.lang.String getClassName()

getModifiers

public Modifiers getModifiers()

getAttributes

public Attribute[] getAttributes()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

serialize

public void serialize(ByteStream bs)

Specified by:

serialize in interface FilterObject

serializeAppend

public void serializeAppend(ByteStream bs)

Specified by:

serializeAppend in interface FilterObject

serializeInPlace

public void serializeInPlace(ByteStream bs)

Specified by:

serializeInPlace in interface FilterObject

getStatus

public int getStatus()

Specified by:

getStatus in interface FilterObject