Package org.apache.bcel.generic

Class FieldInstruction

java.lang.Object

org.apache.bcel.generic.Instruction

org.apache.bcel.generic.CPInstruction

org.apache.bcel.generic.FieldOrMethod

org.apache.bcel.generic.FieldInstruction

All Implemented Interfaces:

java.lang.Cloneable, IndexedInstruction, LoadClass, TypedInstruction

Direct Known Subclasses:

GETFIELD, GETSTATIC, PUTFIELD, PUTSTATIC

public abstract class FieldInstruction
extends FieldOrMethod

Super class for the GET/PUTxxx family of instructions.

Field Summary

Fields inherited from class org.apache.bcel.generic.CPInstruction

index

Fields inherited from class org.apache.bcel.generic.Instruction

EMPTY_ARRAY, length, opcode

Constructor Summary

Constructors

Modifier	Constructor	Description
(package private)	FieldInstruction()	Empty constructor needed for Instruction.readInstruction.
protected	FieldInstruction(short opcode, int index)	Constructs a FieldInstruction.

Method Summary

Modifier and Type	Method	Description
java.lang.String	getFieldName(ConstantPoolGen cpg)	Gets the name of referenced field.
protected int	getFieldSize(ConstantPoolGen cpg)	Gets the size of field.
Type	getFieldType(ConstantPoolGen cpg)	Gets the type of field.
Type	getType(ConstantPoolGen cpg)	Gets the type associated with this instruction.
java.lang.String	toString(ConstantPool cp)	Gets the mnemonic for instruction with symbolic references resolved.

Methods inherited from class org.apache.bcel.generic.FieldOrMethod

getClassName, getClassType, getLoadClassType, getName, getReferenceType, getSignature

Methods inherited from class org.apache.bcel.generic.CPInstruction

dump, getIndex, initFromFile, setIndex, toString

Methods inherited from class org.apache.bcel.generic.Instruction

accept, consumeStack, copy, dispose, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, setLength, setOpcode, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldInstruction

FieldInstruction()

Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.

FieldInstruction

protected FieldInstruction(short opcode,
                           int index)

Constructs a FieldInstruction.

Parameters:

opcode - the opcode.

index - to constant pool.

Method Detail

getFieldName

public java.lang.String getFieldName(ConstantPoolGen cpg)

Gets the name of referenced field.

Parameters:

cpg - the constant pool generator.

Returns:

name of referenced field.

getFieldSize

protected int getFieldSize(ConstantPoolGen cpg)

Gets the size of field.

Parameters:

cpg - the constant pool generator.

Returns:

size of field (1 or 2).

getFieldType

public Type getFieldType(ConstantPoolGen cpg)

Gets the type of field.

Parameters:

cpg - the constant pool generator.

Returns:

type of field.

getType

public Type getType(ConstantPoolGen cpg)

Description copied from interface: TypedInstruction

Gets the type associated with this instruction.

Specified by:

getType in interface LoadClass

Specified by:

getType in interface TypedInstruction

Overrides:

getType in class CPInstruction

Parameters:

cpg - the constant pool generator.

Returns:

return type of referenced field.

See Also:

LoadClass.getLoadClassType(ConstantPoolGen)

toString

public java.lang.String toString(ConstantPool cp)

Description copied from class: Instruction

Gets the mnemonic for instruction with symbolic references resolved.

Overrides:

toString in class CPInstruction

Parameters:

cp - the constant pool.

Returns:

mnemonic for instruction with symbolic references resolved.