org.gjt.jclasslib.structures
Class ConstantPoolUtil

java.lang.Object
  |
  +--org.gjt.jclasslib.structures.ConstantPoolUtil

public class ConstantPoolUtil

extends Object

Utility methods for working on the constant pool of a ClassFile object.

Version:

$Revision: 1.6 $ $Date: 2003/08/18 07:52:54 $

Author:

Ingo Kegel

Method Summary

static int	addConstantClassInfo(ClassFile classFile, String className, int sizeDelta) Add a ConstantClassInfo constant pool entry to the constant pool of a ClassFile.
static int	addConstantFieldrefInfo(ClassFile classFile, String className, String fieldName, String fieldType, int sizeDelta) Add a ConstantFieldRef constant pool entry to the constant pool of a ClassFile.
static int	addConstantMethodrefInfo(ClassFile classFile, String className, String methodName, String methodSignature, int sizeDelta) Add a ConstantMethodRef constant pool entry to the constant pool of a ClassFile.
static int	addConstantNameAndTypeInfo(ClassFile classFile, String name, String descriptor, int sizeDelta) Add a ConstantNameAndTypeInfo constant pool entry to the constant pool of a ClassFile.
static int	addConstantPoolEntry(ClassFile classFile, CPInfo newEntry, int sizeDelta) Add a constant pool entry to the constant pool of a ClassFile.
static int	addConstantUTF8Info(ClassFile classFile, String string, int sizeDelta) Add a ConstantUTF8Info constant pool entry to the constant pool of a ClassFile.

Methods inherited from class java.lang.Object

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

Method Detail

addConstantMethodrefInfo

public static int addConstantMethodrefInfo(ClassFile classFile,
                                           String className,
                                           String methodName,
                                           String methodSignature,
                                           int sizeDelta)

Add a ConstantMethodRef constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

className - the name of the referenced class

methodName - the name of the referenced method

methodSignature - the signature of the referenced method

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added ConstantMethodRef

addConstantFieldrefInfo

public static int addConstantFieldrefInfo(ClassFile classFile,
                                          String className,
                                          String fieldName,
                                          String fieldType,
                                          int sizeDelta)

Add a ConstantFieldRef constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

className - the name of the referenced class

fieldName - the name of the referenced field

fieldType - the type of the referenced field

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added ConstantMethodRef

addConstantNameAndTypeInfo

public static int addConstantNameAndTypeInfo(ClassFile classFile,
                                             String name,
                                             String descriptor,
                                             int sizeDelta)

Add a ConstantNameAndTypeInfo constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

name - the name

descriptor - the descriptor

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added ConstantNameAndTypeInfo

addConstantClassInfo

public static int addConstantClassInfo(ClassFile classFile,
                                       String className,
                                       int sizeDelta)

Add a ConstantClassInfo constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

className - the name of the referenced class

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added ConstantClassInfo

addConstantUTF8Info

public static int addConstantUTF8Info(ClassFile classFile,
                                      String string,
                                      int sizeDelta)

Add a ConstantUTF8Info constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

string - the string

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added ConstantUTF8Info

addConstantPoolEntry

public static int addConstantPoolEntry(ClassFile classFile,
                                       CPInfo newEntry,
                                       int sizeDelta)

Add a constant pool entry to the constant pool of a ClassFile.

Parameters:

classFile - the class file whose constant pool is to be edited

newEntry - the new constant pool entry

sizeDelta - the minimum increment by which the array holding the constant pool is to be enlarged. Set to 0 if unsure.

Returns:

the constant pool index of the added constant pool entry