org.gjt.jclasslib.structures.constants
Class ConstantReference

java.lang.Object
  |
  +--org.gjt.jclasslib.structures.AbstractStructure
        |
        +--org.gjt.jclasslib.structures.CPInfo
              |
              +--org.gjt.jclasslib.structures.constants.ConstantReference

Direct Known Subclasses:

ConstantFieldrefInfo, ConstantInterfaceMethodrefInfo, ConstantMethodrefInfo

public abstract class ConstantReference

extends CPInfo

Base class for constant pool data structures which reference class members.

Version:

$Revision: 1.5 $ $Date: 2003/08/18 07:50:25 $

Author:

Ingo Kegel

Field Summary

protected int	classIndex class_index field.
protected int	nameAndTypeIndex name_and_type_index field.
static int	SIZE Length of the constant pool data structure in bytes.

Fields inherited from class org.gjt.jclasslib.structures.CPInfo

CONSTANT_CLASS, CONSTANT_CLASS_VERBOSE, CONSTANT_DOUBLE, CONSTANT_DOUBLE_VERBOSE, CONSTANT_FIELDREF, CONSTANT_FIELDREF_VERBOSE, CONSTANT_FLOAT, CONSTANT_FLOAT_VERBOSE, CONSTANT_INTEGER, CONSTANT_INTEGER_VERBOSE, CONSTANT_INTERFACE_METHODREF, CONSTANT_INTERFACE_METHODREF_VERBOSE, CONSTANT_LONG, CONSTANT_LONG_VERBOSE, CONSTANT_METHODREF, CONSTANT_METHODREF_VERBOSE, CONSTANT_NAME_AND_TYPE, CONSTANT_NAME_AND_TYPE_VERBOSE, CONSTANT_STRING, CONSTANT_STRING_VERBOSE, CONSTANT_UTF8, CONSTANT_UTF8_VERBOSE

Fields inherited from class org.gjt.jclasslib.structures.AbstractStructure

classFile, debug, SYSTEM_PROPERTY_DEBUG

Constructor Summary

ConstantReference()

Method Summary

boolean	equals(Object object)
int	getClassIndex() Get the index of the constant pool entry containing the CONSTANT_Class_info of this entry.
ConstantClassInfo	getClassInfo() Get the class info for this reference.
int	getNameAndTypeIndex() Get the index of the constant pool entry containing the CONSTANT_NameAndType_info of this entry.
ConstantNameAndTypeInfo	getNameAndTypeInfo() Get the name and type info for this reference.
String	getVerbose() Get the verbose description of the content of the constant pool entry.
int	hashCode()
void	read(DataInput in) Read this structure from the given DataInput.
void	setClassIndex(int classIndex) Set the index of the constant pool entry containing the CONSTANT_Class_info of this entry.
void	setNameAndTypeIndex(int nameAndTypeIndex) Set the index of the constant pool entry containing the CONSTANT_NameAndType_info of this entry.
void	write(DataOutput out) Write this structure to the given DataOutput.

Methods inherited from class org.gjt.jclasslib.structures.CPInfo

create, getTag, getTagVerbose, skip

Methods inherited from class org.gjt.jclasslib.structures.AbstractStructure

debug, getClassFile, getDebug, getLength, printAccessFlags, printAccessFlagsVerbose, printBytes, setClassFile, setDebug

Methods inherited from class java.lang.Object

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

Field Detail

SIZE

public static final int SIZE

Length of the constant pool data structure in bytes.

See Also:

Constant Field Values

classIndex

protected int classIndex

class_index field.

nameAndTypeIndex

protected int nameAndTypeIndex

name_and_type_index field.

Constructor Detail

ConstantReference

public ConstantReference()

Method Detail

getVerbose

public String getVerbose()
                  throws InvalidByteCodeException

Description copied from class: CPInfo

Get the verbose description of the content of the constant pool entry.

Overrides:

getVerbose in class CPInfo

Returns:

the verbose description

Throws:

InvalidByteCodeException - if the byte code is invalid

getClassIndex

public int getClassIndex()

Get the index of the constant pool entry containing the CONSTANT_Class_info of this entry.

Returns:

the index

setClassIndex

public void setClassIndex(int classIndex)

Set the index of the constant pool entry containing the CONSTANT_Class_info of this entry.

Parameters:

classIndex - the index

getNameAndTypeIndex

public int getNameAndTypeIndex()

Get the index of the constant pool entry containing the CONSTANT_NameAndType_info of this entry.

Returns:

the index

setNameAndTypeIndex

public void setNameAndTypeIndex(int nameAndTypeIndex)

Set the index of the constant pool entry containing the CONSTANT_NameAndType_info of this entry.

Parameters:

nameAndTypeIndex - the index

getClassInfo

public ConstantClassInfo getClassInfo()
                               throws InvalidByteCodeException

Get the class info for this reference.

Returns:

the class info.

Throws:

InvalidByteCodeException

getNameAndTypeInfo

public ConstantNameAndTypeInfo getNameAndTypeInfo()
                                           throws InvalidByteCodeException

Get the name and type info for this reference.

Returns:

the name and type info.

Throws:

InvalidByteCodeException

read

public void read(DataInput in)
          throws InvalidByteCodeException,
                 IOException

Description copied from class: AbstractStructure

Read this structure from the given DataInput.

Excpects DataInput to be in JVM class file format and just before a structure of this kind. No look ahead parsing since the class file format is deterministic.

Overrides:

read in class AbstractStructure

Parameters:

in - the DataInput from which to read

Throws:

IOException - if an exception occurs with the DataInput

InvalidByteCodeException - if the byte code is invalid

write

public void write(DataOutput out)
           throws InvalidByteCodeException,
                  IOException

Description copied from class: AbstractStructure

Write this structure to the given DataOutput.

The written bytes are in JVM class file format.

Overrides:

write in class AbstractStructure

Parameters:

out - the DataOutput to which to write

Throws:

InvalidByteCodeException - if the structure is internally inconsistent

IOException - if an exception occurs with the DataOutput

equals

public boolean equals(Object object)

Overrides:

equals in class CPInfo

hashCode

public int hashCode()

Overrides:

hashCode in class CPInfo