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

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