edu.rit.pj.reduction
Class LongOp

java.lang.Object
  edu.rit.pj.reduction.Op
      edu.rit.pj.reduction.LongOp

public abstract class LongOp
extends Op

Class LongOp is the abstract base class for a binary operation on long values, used to do reduction in a parallel program.

Field Summary

static LongOp	AND The long bitwise "and" binary operation.
static LongOp	MAXIMUM The long maximum binary operation.
static LongOp	MINIMUM The long minimum binary operation.
static LongOp	OR The long bitwise "or" binary operation.
static LongOp	PRODUCT The long product binary operation.
static LongOp	SUM The long sum binary operation.
static LongOp	XOR The long bitwise "exclusive or" binary operation.

Constructor Summary

protected

LongOp() Construct a new long binary operation.

Method Summary

abstract long

op(long x, long y) Perform this binary operation.

Methods inherited from class java.lang.Object

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

Field Detail

SUM

public static final LongOp SUM

The long sum binary operation.

PRODUCT

public static final LongOp PRODUCT

The long product binary operation.

MINIMUM

public static final LongOp MINIMUM

The long minimum binary operation.

MAXIMUM

public static final LongOp MAXIMUM

The long maximum binary operation.

AND

public static final LongOp AND

The long bitwise "and" binary operation.

OR

public static final LongOp OR

The long bitwise "or" binary operation.

XOR

public static final LongOp XOR

The long bitwise "exclusive or" binary operation.

Constructor Detail

LongOp

protected LongOp()

Construct a new long binary operation.

Method Detail

op

public abstract long op(long x,
                        long y)

Perform this binary operation.

Parameters:

x - First argument.

y - Second argument.

Returns:

(x op y), where op stands for this binary operation.