Package com.semedy.reasoner.edb.ramstore

Class TupleSelectComparator

java.lang.Object

com.semedy.reasoner.edb.ramstore.TupleSelectComparator

All Implemented Interfaces:

TupleBufferComparator

public class TupleSelectComparator
extends Object
implements TupleBufferComparator

Constructor Summary

Constructors

Constructor	Description
TupleSelectComparator(int[] compareToNonGrounds1, int[] compareToGrounds1, long[] grounds1, long[] filterValues1, int[] compareToNonGrounds2, int[] compareToGrounds2, long[] grounds2, long[] filterValues2)

Method Summary

Modifier and Type	Method	Description
int	compare(TupleBuffer o1, long[] buffer)	compare a buffer with a tuple as array
int	compare(TupleBuffer o1, TupleBuffer o2)	compare two buffers

Methods inherited from class java.lang.Object

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

Constructor Details

TupleSelectComparator

public TupleSelectComparator(int[] compareToNonGrounds1,
 int[] compareToGrounds1,
 long[] grounds1,
 long[] filterValues1,
 int[] compareToNonGrounds2,
 int[] compareToGrounds2,
 long[] grounds2,
 long[] filterValues2)

Method Details

compare

public int compare(TupleBuffer o1,
 TupleBuffer o2)

Description copied from interface: TupleBufferComparator

compare two buffers

Specified by:

compare in interface TupleBufferComparator

Returns:

-1 if tuple1 < tuple2, 0 if tuple1 = tuple2, 1 if tuple1 > tuple2

compare

public int compare(TupleBuffer o1,
 long[] buffer)

Description copied from interface: TupleBufferComparator

compare a buffer with a tuple as array

Specified by:

compare in interface TupleBufferComparator

Returns:

-1 if tuple1 < tuple2, 0 if tuple1 = tuple2, 1 if tuple1 > tuple2