bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/evaluator/HintNode.java

   1 package org.simantics.document.linking.report.evaluator;\r
   2 \r
   3 import java.util.Collections;\r
   4 import java.util.List;\r
   5 import java.util.Map;\r
   6 \r
   7 import org.simantics.db.ReadGraph;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.db.layer0.variable.Variable;\r
  10 import org.simantics.document.linking.report.DocumentLine;\r
  11 \r
  12 \r
  13 public abstract class HintNode extends EvaluatorNode{\r
  14         \r
  15         \r
  16         public abstract Object getHintValue();\r
  17         public abstract Object getHintClass();\r
  18         \r
  19         @Override\r
  20         public String getValue(ReadGraph graph, Variable variable, Map<Object, Object> context)\r
  21                         throws DatabaseException {\r
  22                 if (children.size() > 0)\r
  23                         return children.get(0).getValue(graph, variable, context);\r
  24                 return null;\r
  25         }\r
  26         \r
  27         @Override\r
  28         public List<DocumentLine> getLines(ReadGraph graph, Variable variable, Map<Object, Object> context) throws DatabaseException {\r
  29                 if (children.size() > 0) {\r
  30                         List<DocumentLine> list = children.get(0).getLines(graph, variable, context);\r
  31                         for (DocumentLine line : list)\r
  32                                 line.getHints().put(getHintClass(), getHintValue());\r
  33                         return list;\r
  34                 }\r
  35                 return Collections.emptyList();\r
  36         }\r
  37 \r
  38         \r
  39         @Override\r
  40         public List<Class<? extends EvaluatorItem>> getPossibleChildren(boolean add) {\r
  41                 if (add && children.size() > 0)\r
  42                         return Collections.emptyList();\r
  43                 return super.getPossibleChildren(add);\r
  44         }\r
  45         \r
  46         @Override\r
  47         public boolean acceptChild(EvaluatorItem item) {\r
  48                 return children.size() == 0;\r
  49         }\r
  50         \r
  51         @Override\r
  52         public boolean acceptChild(int index, EvaluatorItem item) {\r
  53                 return children.size() == 0;\r
  54         }\r
  55         \r
  56 \r
  57 }\r