IfInstruction

java.lang.Object
- org.apache.bcel.generic.Instruction
- - org.apache.bcel.generic.BranchInstruction
  - - org.apache.bcel.generic.IfInstruction

All Implemented Interfaces:

java.lang.Cloneable, InstructionTargeter, StackConsumer

Direct Known Subclasses:

IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL
```
public abstract class IfInstruction
extends BranchInstruction
implements StackConsumer
```
Super class for the IFxxx family of instructions.

Field Summary
- Fields inherited from class org.apache.bcel.generic.BranchInstruction
  index, position, target
- Fields inherited from class org.apache.bcel.generic.Instruction
  EMPTY_ARRAY, length, opcode

Constructor Summary

Constructors
Modifier	Constructor	Description
`(package private)`	`IfInstruction()`	Empty constructor needed for Instruction.readInstruction.
`protected`	`IfInstruction(short opcode, InstructionHandle target)`	Constructs an IfInstruction.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type Method Description

abstract IfInstruction negate()
Gets the negation of this instruction.
- Methods inherited from class org.apache.bcel.generic.BranchInstruction
  containsTarget, dispose, dump, getIndex, getPosition, getTarget, getTargetOffset, getTargetOffset, initFromFile, notifyTarget, setIndex, setPosition, setTarget, toString, updatePosition, updateTarget
- Methods inherited from class org.apache.bcel.generic.Instruction
  accept, consumeStack, copy, equals, getComparator, getLength, getName, getOpcode, hashCode, isValidByte, isValidShort, produceStack, readInstruction, setComparator, setLength, setOpcode, toString, toString
- Methods inherited from class java.lang.Object
  clone, finalize, getClass, notify, notifyAll, wait, wait, wait
- Methods inherited from interface org.apache.bcel.generic.StackConsumer
  consumeStack

- Constructor Detail
  - IfInstruction
```
IfInstruction()
```
    Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
  - IfInstruction
```
protected IfInstruction(short opcode,
                        InstructionHandle target)
```
    Constructs an IfInstruction.
    
    Parameters:
    
    opcode - opcode of instruction.
    
    target - Target instruction to branch to.
- Method Detail
  - negate
```
public abstract IfInstruction negate()
```
    Gets the negation of this instruction.
    
    Returns:
    
    negation of instruction, for example IFEQ.negate() == IFNE.