javar.constantpool
Class ConstantPoolEntry

java.lang.Object
  |
  +--javar.constantpool.ConstantPoolEntry

Direct Known Subclasses:

CONSTANT_Classref, CONSTANT_Double, CONSTANT_Fieldref, CONSTANT_Float, CONSTANT_Integer, CONSTANT_InterfaceMethodref, CONSTANT_Long, CONSTANT_Methodref, CONSTANT_NameAndType, CONSTANT_String, CONSTANT_Utf8

public abstract class ConstantPoolEntry

extends Object

This is an abstract class that will represent an entry in the constant pool

Author:

Ben Litchfield (ben@csh.rit.edu)

Field Summary

static byte	CLASS_CODE
static byte	DOUBLE_CODE
static byte	FIELD_REF_CODE
static byte	FLOAT_CODE
protected long	index
static byte	INTEGER_CODE
static byte	INTERFACE_METHOD_REF_CODE
static byte	LONG_CODE
static byte	METHOD_REF_CODE
static byte	NAME_AND_TYPE_CODE
protected ConstantPool	pool
static byte	STRING_CODE
static byte	UTF8_CODE

Constructor Summary

ConstantPoolEntry(ConstantPool p)
Constructor

Method Summary

abstract byte	getCode() This will return the code of this entry
long	getIndex() This will tell the index of this entry
abstract void	load(DataInputStream in) This will read in whatever data is neccessary to create this entry
void	setIndex(int i) This will set the index for this entry
abstract byte[]	toBytes() This will take the entry and convert it into bytes.

Methods inherited from class java.lang.Object

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

Field Detail

UTF8_CODE

public static final byte UTF8_CODE

See Also:

Constant Field Values

INTEGER_CODE

public static final byte INTEGER_CODE

See Also:

Constant Field Values

FLOAT_CODE

public static final byte FLOAT_CODE

See Also:

Constant Field Values

LONG_CODE

public static final byte LONG_CODE

See Also:

Constant Field Values

DOUBLE_CODE

public static final byte DOUBLE_CODE

See Also:

Constant Field Values

CLASS_CODE

public static final byte CLASS_CODE

See Also:

Constant Field Values

STRING_CODE

public static final byte STRING_CODE

See Also:

Constant Field Values

FIELD_REF_CODE

public static final byte FIELD_REF_CODE

See Also:

Constant Field Values

METHOD_REF_CODE

public static final byte METHOD_REF_CODE

See Also:

Constant Field Values

INTERFACE_METHOD_REF_CODE

public static final byte INTERFACE_METHOD_REF_CODE

See Also:

Constant Field Values

NAME_AND_TYPE_CODE

public static final byte NAME_AND_TYPE_CODE

See Also:

Constant Field Values

pool

protected ConstantPool pool

index

protected long index

Constructor Detail

ConstantPoolEntry

public ConstantPoolEntry(ConstantPool p)

Constructor

Method Detail

getCode

public abstract byte getCode()

This will return the code of this entry

Returns:

number representing the type of entry

load

public abstract void load(DataInputStream in)

This will read in whatever data is neccessary to create this entry

Parameters:

in - the stream to read the data from

getIndex

public long getIndex()

This will tell the index of this entry

Returns:

index

toBytes

public abstract byte[] toBytes()
                        throws IOException

This will take the entry and convert it into bytes.

Returns:

the bytes that represent this entry.

IOException

setIndex

public void setIndex(int i)

This will set the index for this entry