Package org.jacop.util

Class TupleUtils

java.lang.Object
org.jacop.util.TupleUtils
public class TupleUtils extends Object
Util functions for arrays of tuples.
Version:
4.10

  • Field Details

    • tupleNumber

      int tupleNumber

    • tuples

      int[][] tuples

  • Constructor Details

    • TupleUtils

      public TupleUtils()

  • Method Details

    • recordTuples

      public int[][] recordTuples(int[][] ts)
      It recordTuples to store so tuples can be reused across multiple extensional constraints. It can potentially save memory.
      Parameters:
      ts - tuples to be recorded.
      Returns:
      two-dimensional array with tuples.

    • findPositionForInsert

      public int findPositionForInsert(int[] tuple)
      searches for the position of the tuple in the tuple list.
      Parameters:
      tuple - to be compared to.
      Returns:
      position at which the tuple is stored in tuple list array.

    • sortTuples

      public int[][] sortTuples(int[][] ts)
      Parameters:
      ts - tuples to be sorted.
      Returns:
      sorted tuples.

    • sortTuplesWithin

      public static void sortTuplesWithin(int[][] ts)
      It sorts tuples.
      Parameters:
      ts - tuples to be sorted.

    • smallerEqualTuple

      public static boolean smallerEqualTuple(int[] left, int[] right)
      It compares tuples.
      Parameters:
      left - tuple to be compared to.
      right - tuple to compar with.
      Returns:
      true if the left tuple is larger than right tuple.