bundles/org.simantics.spreadsheet.graph/src/org/simantics/spreadsheet/graph/adapter/CellVariable.java

   1 package org.simantics.spreadsheet.graph.adapter;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.WriteGraph;
   6 import org.simantics.db.exception.DatabaseException;
   7 import org.simantics.db.layer0.variable.StandardGraphChildVariable;
   8 import org.simantics.db.layer0.variable.Variable;
   9 import org.simantics.spreadsheet.common.cell.VariableCellEditor;
  10
  11 public class CellVariable extends StandardGraphChildVariable {
  12
  13         public CellVariable(Variable parent, Resource resource) throws DatabaseException {
  14                 super(parent, null, resource);
  15         }
  16
  17         @Override
  18         public String getLabel(ReadGraph graph) throws DatabaseException {
  19                 return null;
  20         }
  21
  22     @SuppressWarnings("unchecked")
  23     protected <T> T tryAdapt(ReadGraph graph, Class<T> clazz) throws DatabaseException {
  24         if(VariableCellEditor.class == clazz) {
  25                 return (T)new VariableCellEditor() {
  26
  27                                 @Override
  28                                 public void edit(WriteGraph graph, Variable cell, String text) throws DatabaseException {
  29                                 }
  30
  31                                 @Override
  32                                 public void copy(WriteGraph graph, Variable cell, String location) throws DatabaseException {
  33                                 }
  34
  35                         };
  36         }
  37         return null;
  38     }
  39
  40     @Override
  41     public <T> T adapt(ReadGraph graph, Class<T> clazz) throws DatabaseException {
  42         T t = tryAdapt(graph, clazz);
  43         return t != null ? t : super.adapt(graph, clazz);
  44     }
  45
  46     @Override
  47     public <T> T adaptPossible(ReadGraph graph, Class<T> clazz) throws DatabaseException {
  48         T t = tryAdapt(graph, clazz);
  49         return t != null ?  t : super.adaptPossible(graph, clazz);
  50     }
  51
  52 }