bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/NodeSupport.java

   1 package org.simantics.db.layer0.variable;\r
   2 \r
   3 import java.util.concurrent.TimeUnit;\r
   4 \r
   5 import org.simantics.databoard.binding.mutable.Variant;\r
   6 import org.simantics.db.layer0.variable.Variables.NodeStructure;\r
   7 import org.simantics.simulator.variable.NodeManager;\r
   8 \r
   9 /**\r
  10  * @author Antti Villberg\r
  11  *\r
  12  * @param <Node>\r
  13  * @since 1.23\r
  14  */\r
  15 public class NodeSupport<Node> {\r
  16 \r
  17         public final NodeManager<Node> manager;\r
  18         public final NodeCache<Node,Variant> valueCache;\r
  19         public final NodeCache<Node,NodeStructure> structureCache;\r
  20 \r
  21         public NodeSupport(NodeManager<Node> manager) {\r
  22                 this(manager, 1, TimeUnit.SECONDS);\r
  23         }\r
  24 \r
  25         public NodeSupport(NodeManager<Node> manager, long defaultExpirationTime, TimeUnit expirationTimeUnit) {\r
  26                 if (manager == null)\r
  27                         throw new NullPointerException("null NodeManager");\r
  28                 long ns = expirationTimeUnit.toNanos(defaultExpirationTime);\r
  29                 this.manager = manager;\r
  30                 this.valueCache = new NodeCache<>(ns);\r
  31                 this.structureCache = new NodeCache<>(ns);\r
  32         }\r
  33 \r
  34         @Override\r
  35         public int hashCode() {\r
  36                 final int prime = 31;\r
  37                 int result = 1;\r
  38                 result = prime * result + valueCache.hashCode();\r
  39                 result = prime * result + structureCache.hashCode();\r
  40                 result = prime * result + manager.hashCode();\r
  41                 return result;\r
  42         }\r
  43 \r
  44         @Override\r
  45         public boolean equals(Object obj) {\r
  46                 if (this == obj)\r
  47                         return true;\r
  48                 if (obj == null)\r
  49                         return false;\r
  50                 if (getClass() != obj.getClass())\r
  51                         return false;\r
  52                 NodeSupport<?> other = (NodeSupport<?>) obj;\r
  53                 return valueCache.equals(other.valueCache)\r
  54                                 && structureCache.equals(other.structureCache)\r
  55                                 && manager.equals(other.manager);\r
  56         }\r
  57 \r
  58         public void dispose() {\r
  59                 valueCache.dispose();\r
  60                 structureCache.dispose();\r
  61         }\r
  62 \r
  63 }\r