alt.jiapi.file

Class ProgramElement

java.lang.Object

alt.jiapi.file.ProgramElement

Direct Known Subclasses:

ClassFile, Field, Method

public class ProgramElement
extends java.lang.Object

This class holds mainly attribute reading and writing of program elements of class file. Program elements are class, methods and fields.

Author:

Mika Riekkinen

Field Summary

Fields

Modifier and Type	Field and Description
protected short	access_flags
protected java.util.List	attributes
protected ConstantPool	constantPool

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ProgramElement(ConstantPool constantPool)
protected	ProgramElement(ConstantPool constantPool, short access_flags)
protected	ProgramElement(ConstantPool constantPool, short access_flags, java.util.List attributes)

Method Summary

Methods

Modifier and Type	Method and Description
short	getAccessFlags()
Attribute	getAttribute(java.lang.String name) Gets a named attribute from this ProgramElement.
java.util.List	getAttributes() Gets all the class level attributes of this ClassFile.
ConstantPool	getConstantPool()
protected java.util.List	readAttributes(java.io.DataInputStream dis) Reads attributes of the program element.
protected void	writeAttributes(java.io.DataOutputStream dos)

Methods inherited from class java.lang.Object

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

Field Detail

access_flags

protected short access_flags

attributes

protected java.util.List attributes

constantPool

protected ConstantPool constantPool

Constructor Detail

ProgramElement

protected ProgramElement(ConstantPool constantPool)

ProgramElement

protected ProgramElement(ConstantPool constantPool,
              short access_flags)

ProgramElement

protected ProgramElement(ConstantPool constantPool,
              short access_flags,
              java.util.List attributes)

Method Detail

getAccessFlags

public short getAccessFlags()

getAttribute

public Attribute getAttribute(java.lang.String name)

Gets a named attribute from this ProgramElement.

Parameters:

name - Name of the attribute

Returns:

Attribute found, or null if there was no attribute of given name

getAttributes

public java.util.List getAttributes()

Gets all the class level attributes of this ClassFile.

Returns:

a List of Attributes

getConstantPool

public ConstantPool getConstantPool()

readAttributes

protected java.util.List readAttributes(java.io.DataInputStream dis)
                                 throws java.io.IOException

Reads attributes of the program element. First 'short' read is expected to contain attribute count.

Throws:

java.io.IOException

writeAttributes

protected void writeAttributes(java.io.DataOutputStream dos)
                        throws java.io.IOException

Throws:

java.io.IOException