scale.jcr
Class ClassFile

java.lang.Object
  scale.jcr.ClassFile

public class ClassFile
extends java.lang.Object

This class is used to both represent a Java class file and to read that class file.

$Id: ClassFile.java,v 1.15 2007-10-04 19:58:15 burrill Exp $

Copyright 2008 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Field Summary

static int	ACC_ABSTRACT
static int	ACC_FINAL
static int	ACC_INTERFACE
static int	ACC_NATIVE
static int	ACC_PRIVATE
static int	ACC_PROTECTED
static int	ACC_PUBLIC The access masks.
static int	ACC_STATIC
static int	ACC_SUPER
static int	ACC_SYNCHRONIZED
static int	ACC_TRANSIENT
static int	ACC_VOLATILE
static int	classesRead A running counter of the number of Java class files read.

Constructor Summary

ClassFile(java.lang.String name)
Read in the specified Java class file.

Method Summary

void	addRefClasses(Stack<java.lang.String> wl) Adds all the class names referenced by this class to the stack.
static void	closeZipFiles() Closes any zip or jar files opened to read any class.
int	getAccessFlags() Return the accessFlags field of the class file.
AttributeInfo	getAttribute(int index) Return the attribute entry specified.
AttributeInfo[]	getAttributes() Return an array of the AttributeInfo structures for the class.
CPInfo	getCP(int index) Return the constant pool entry specified.
FieldInfo	getField(int index) Return the field entry specified.
FieldInfo[]	getFields() Return an array of the FieldInfo structures for the class.
int	getInterface(int index) Return the interface index specified.
int[]	getInterfaces() Return an array of interface indexs into the constant pool.
int	getMagic() Return the magic field of the class file.
int	getMajorVersion() Return the majorVersion field of the class file.
MethodInfo	getMethod(int index) Return the method entry specified.
MethodInfo[]	getMethods() Return an array of the MethodInfo structures for the class.
int	getMinorVersion() Return the minorVersion field of the class file.
java.lang.String	getName(int index) Return the name of entry in the constant pool.
java.lang.String	getString(int index) Return the String from the constant pool.
int	getSuperClass() Return the superClass field of the class file.
int	getThisClass() Return the thisClass field of the class file.
int	numCPEntries() Return the number of constant pool entries.

Methods inherited from class java.lang.Object

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

Field Detail

ACC_PUBLIC

public static final int ACC_PUBLIC

The access masks.

See Also:

Constant Field Values

ACC_PRIVATE

public static final int ACC_PRIVATE

See Also:

Constant Field Values

ACC_PROTECTED

public static final int ACC_PROTECTED

See Also:

Constant Field Values

ACC_STATIC

public static final int ACC_STATIC

See Also:

Constant Field Values

ACC_FINAL

public static final int ACC_FINAL

See Also:

Constant Field Values

ACC_SUPER

public static final int ACC_SUPER

See Also:

Constant Field Values

ACC_SYNCHRONIZED

public static final int ACC_SYNCHRONIZED

See Also:

Constant Field Values

ACC_VOLATILE

public static final int ACC_VOLATILE

See Also:

Constant Field Values

ACC_TRANSIENT

public static final int ACC_TRANSIENT

See Also:

Constant Field Values

ACC_NATIVE

public static final int ACC_NATIVE

See Also:

Constant Field Values

ACC_INTERFACE

public static final int ACC_INTERFACE

See Also:

Constant Field Values

ACC_ABSTRACT

public static final int ACC_ABSTRACT

See Also:

Constant Field Values

classesRead

public static int classesRead

A running counter of the number of Java class files read.

Constructor Detail

ClassFile

public ClassFile(java.lang.String name)
          throws InvalidException

Read in the specified Java class file.

Throws:

InvalidException - if the class file was not read successfully

Method Detail

getMagic

public int getMagic()

Return the magic field of the class file.

getMinorVersion

public int getMinorVersion()

Return the minorVersion field of the class file.

getMajorVersion

public int getMajorVersion()

Return the majorVersion field of the class file.

getAccessFlags

public int getAccessFlags()

Return the accessFlags field of the class file.

getThisClass

public int getThisClass()

Return the thisClass field of the class file.

getSuperClass

public int getSuperClass()

Return the superClass field of the class file.

numCPEntries

public int numCPEntries()

Return the number of constant pool entries.

getCP

public CPInfo getCP(int index)

Return the constant pool entry specified.

getName

public java.lang.String getName(int index)

Return the name of entry in the constant pool.

Parameters:

index - is an index into the constant pool of a Utf-8 string

getString

public java.lang.String getString(int index)

Return the String from the constant pool.

Parameters:

index - is an index into the constant pool of a Utf-8 string

getInterface

public int getInterface(int index)

Return the interface index specified.

getInterfaces

public int[] getInterfaces()

Return an array of interface indexs into the constant pool.

getField

public FieldInfo getField(int index)

Return the field entry specified.

getFields

public FieldInfo[] getFields()

Return an array of the FieldInfo structures for the class.

getMethod

public MethodInfo getMethod(int index)

Return the method entry specified.

getMethods

public MethodInfo[] getMethods()

Return an array of the MethodInfo structures for the class.

getAttribute

public AttributeInfo getAttribute(int index)

Return the attribute entry specified.

getAttributes

public AttributeInfo[] getAttributes()

Return an array of the AttributeInfo structures for the class.

addRefClasses

public void addRefClasses(Stack<java.lang.String> wl)

Adds all the class names referenced by this class to the stack.

closeZipFiles

public static void closeZipFiles()

Closes any zip or jar files opened to read any class.