bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/chr/planning/PrePlanItem.java

   1 package org.simantics.scl.compiler.elaboration.chr.planning;
   2
   3 public abstract class PrePlanItem {
   4     int queuePos;
   5     /* Primary priorities:
   6      *     0 = check
   7      *     1 = functional calculation
   8      *     2 = almost completely bound relation
   9      *     3 = completely inbound relation
  10      */
  11     public double primaryPriority = Double.POSITIVE_INFINITY;
  12     public int secondaryPriority;
  13     public long location;
  14
  15     public PrePlanItem(int secondaryPriority) {
  16         this.secondaryPriority = secondaryPriority;
  17     }
  18
  19     public int compare(PrePlanItem other) {
  20         if(primaryPriority < other.primaryPriority)
  21             return -1;
  22         if(primaryPriority > other.primaryPriority)
  23             return 1;
  24         return Integer.compare(secondaryPriority, other.secondaryPriority);
  25     }
  26
  27     public abstract void initializeListeners(QueryPlanningContext context);
  28     public abstract void variableSolved(QueryPlanningContext context, int variableId);
  29
  30     public abstract void generate(QueryPlanningContext context);
  31 }