bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/BooleanBindingDefault.java

   1 /*******************************************************************************
   2  *  Copyright (c) 2010 Association for Decentralized Information Management in
   3  *  Industry THTH ry.
   4  *  All rights reserved. This program and the accompanying materials
   5  *  are made available under the terms of the Eclipse Public License v1.0
   6  *  which accompanies this distribution, and is available at
   7  *  http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  *  Contributors:
  10  *      VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.databoard.binding.impl;
  13
  14 import org.simantics.databoard.binding.BooleanBinding;
  15 import org.simantics.databoard.binding.error.BindingException;
  16 import org.simantics.databoard.binding.error.UnsupportedOperationException;
  17 import org.simantics.databoard.type.BooleanType;
  18
  19 /**
  20  * Binds Boolean Type to java.lang.Boolean-class.
  21  *
  22  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
  23  */
  24 public class BooleanBindingDefault extends BooleanBinding {
  25
  26         public BooleanBindingDefault(BooleanType type) {
  27                 super( type );
  28         }
  29
  30         public Object create(boolean value)
  31         {
  32                 return value;
  33         }
  34
  35         public Object create(Boolean value)
  36         {
  37                 return value;
  38         }
  39
  40         public void setValue(Object obj, Boolean newValue)
  41         throws BindingException
  42         {
  43                 throw new UnsupportedOperationException("Cannot change the value of immutable java.lang.Boolean");
  44         }
  45
  46         public void setValue(Object obj, boolean newValue)
  47         throws BindingException
  48         {
  49                 if (((Boolean)obj).booleanValue() == newValue) return;
  50                 throw new UnsupportedOperationException("Cannot change the value of immutable java.lang.Boolean");
  51         }
  52
  53         @Override
  54         public Boolean getValue(Object o)
  55         throws BindingException
  56         {
  57                 return ((Boolean)o);
  58         }
  59
  60         @Override
  61         public boolean getValue_(Object o)
  62         throws BindingException
  63         {
  64                 return ((Boolean)o);
  65         }
  66
  67     @Override
  68         public boolean isInstance(Object obj) {
  69                 return obj instanceof Boolean;
  70         }
  71
  72     @Override
  73     public boolean isImmutable() {
  74         return true;
  75     }
  76
  77 }
  78