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

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