bundles/org.simantics.ui/src/org/simantics/ui/selection/VariableWorkbenchSelectionElement.java

   1 package org.simantics.ui.selection;
   2
   3 import org.simantics.db.ReadGraph;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.common.request.UnaryRead;
   6 import org.simantics.db.common.utils.Logger;
   7 import org.simantics.db.exception.DatabaseException;
   8 import org.simantics.db.layer0.variable.Variable;
   9
  10 public class VariableWorkbenchSelectionElement implements WorkbenchSelectionElement {
  11
  12         final private Variable variable;
  13
  14         public VariableWorkbenchSelectionElement(Variable variable) {
  15                 this.variable = variable;
  16         }
  17
  18     @SuppressWarnings("unchecked")
  19     @Override
  20     public <T> T getContent(WorkbenchSelectionContentType<T> contentType) {
  21         if(contentType instanceof AnyResource) {
  22                 AnyResource type = (AnyResource)contentType;
  23             try {
  24                 return (T) type.processor.sync(new UnaryRead<Variable, Resource>(variable) {
  25                     @Override
  26                     public Resource perform(ReadGraph graph) throws DatabaseException {
  27                         return parameter.getRepresents(graph);
  28                     }
  29                 });
  30             } catch (DatabaseException e) {
  31                 Logger.defaultLogError(e);
  32             }
  33         }
  34         else if(contentType instanceof AnyVariable) {
  35                 return (T)variable;
  36         }
  37         return null;
  38     }
  39
  40         @Override
  41         public int hashCode() {
  42                 return variable.hashCode();
  43         }
  44
  45         @Override
  46         public boolean equals(Object object) {
  47         if (this == object)
  48             return true;
  49         else if (object == null)
  50             return false;
  51         else if (!(object instanceof VariableWorkbenchSelectionElement))
  52             return false;
  53         VariableWorkbenchSelectionElement vwse = (VariableWorkbenchSelectionElement)object;
  54         return variable.equals(vwse.variable);
  55         }
  56
  57
  58 }