bundles/org.simantics.databoard/src/org/simantics/databoard/binding/impl/StringBindingDefault.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.StringBinding;
  15 import org.simantics.databoard.binding.error.BindingException;
  16 import org.simantics.databoard.binding.error.UnsupportedOperationException;
  17 import org.simantics.databoard.type.StringType;
  18
  19 /**
  20  * StringBindingDefault is a binding to java.lang.String class.
  21  *
  22  * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
  23  */
  24 public class StringBindingDefault extends StringBinding {
  25
  26         public StringBindingDefault(StringType type) {
  27                 super(type);
  28         }
  29
  30         public Object create(String value)
  31         {
  32                 return value;
  33         }
  34
  35         public String getValue(Object o)
  36         throws BindingException
  37         {
  38                 return (String)o;
  39         }
  40
  41         public void setValue(Object o, String newValue)
  42         throws BindingException
  43         {
  44                 throw new UnsupportedOperationException("Cannot change the value of immutable java.lang.String");
  45         }
  46
  47         @Override
  48         public boolean isInstance(Object obj) {
  49                 return obj instanceof String;
  50         }
  51
  52         @Override
  53         public boolean isImmutable() {
  54                 return true;
  55         }
  56
  57
  58 }
  59