nl.tudelft.simulation.dsol.interpreter.operations

Class IFNONNULL

java.lang.Object

nl.tudelft.simulation.dsol.interpreter.Operation

nl.tudelft.simulation.dsol.interpreter.operations.JumpOperation

nl.tudelft.simulation.dsol.interpreter.operations.IFNONNULL

public class IFNONNULL
extends JumpOperation

The IFNONNULL operation as defined in http://java.sun.com/docs/books/vmspec/2nd-edition/html/Instructions2.doc6.html .

(c) copyright 2002-2005 Delft University of Technology , the Netherlands.
See for project information www.simulation.tudelft.nl
License of use: Lesser General Public License (LGPL) , no warranty.

Since:

1.4

Version:

$Revision: 1.1 $ $Date: 2007/01/06 13:25:11 $

Author:

Peter Jacobs Alexander Verbraeck

Field Summary

Fields

Modifier and Type	Field and Description
static int	OP OP refers to the operand code

Fields inherited from class nl.tudelft.simulation.dsol.interpreter.Operation

BREAKPOINT, IMPDEP1, IMPDEP2, OPCODE_BYTE_LENGTH

Constructor Summary

Constructors

Constructor and Description
IFNONNULL(DataInput dataInput) constructs a new IFNONNULL

Method Summary

Methods

Modifier and Type	Method and Description
int	execute(OperandStack stack, Constant[] constantPool, LocalVariable[] localVariables) executes the operation
int	getByteLength()
int	getOpcode()

Methods inherited from class nl.tudelft.simulation.dsol.interpreter.Operation

toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

OP

public static final int OP

OP refers to the operand code

See Also:

Constant Field Values

Constructor Detail

IFNONNULL

public IFNONNULL(DataInput dataInput)
          throws IOException

constructs a new IFNONNULL

Parameters:

dataInput - the dataInput

Throws:

IOException - on IOfailure

Method Detail

execute

public int execute(OperandStack stack,
          Constant[] constantPool,
          LocalVariable[] localVariables)

Description copied from class: JumpOperation

executes the operation

Specified by:

execute in class JumpOperation

Parameters:

stack - the stack to operate on

constantPool - the constantpool

localVariables - the localvariables

Returns:

int the offset in bytes relative to the operand byte of this operation

See Also:

#execute(nl.tudelft.simulation.dsol.interpreter.OperandStack, nl.tudelft.simulation.dsol.interpreter.classfile.Constant[], nl.tudelft.simulation.dsol.interpreter.LocalVariable[])

getByteLength

public int getByteLength()

Specified by:

getByteLength in class Operation

Returns:

Returs the byteLength

See Also:

Operation.getByteLength()

getOpcode

public int getOpcode()

Specified by:

getOpcode in class Operation

Returns:

Returns the opcode of the operation

See Also:

Operation.getOpcode()