bundles/org.simantics.databoard/src/org/simantics/databoard/accessor/reference/IndexReference.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.accessor.reference;
  13
  14
  15 /**
  16  * Array element
  17  * "i-<index>/"
  18  */
  19 public class IndexReference extends ChildReference {
  20
  21         public int index;
  22
  23         public IndexReference(int index) { this.index = index; }
  24
  25         public IndexReference(int index, ChildReference child) {
  26                 super(child);
  27                 this.index = index;
  28         }
  29
  30         @Override
  31         public String toString(boolean labelReference) {
  32                 return labelReference ? ""+index : "i-"+index;
  33         }
  34
  35         public int getIndex() {
  36                 return index;
  37         }
  38
  39         public void setIndex(int index) {
  40                 this.index = index;
  41         }
  42
  43         @Override
  44         public ChildReference clone() {
  45                 return new IndexReference(index, childReference==null ? null : childReference.clone());
  46         }
  47
  48         @Override
  49         public boolean equals(Object obj) {
  50                 if (obj instanceof IndexReference == false) return false;
  51                 IndexReference other = (IndexReference) obj;
  52                 if (other.index != index) return false;
  53                 if (other.hasChildReference() != hasChildReference()) return false;
  54                 if (hasChildReference() && !other.childReference.equals(childReference)) return false;
  55                 return true;
  56         }
  57
  58         @Override
  59         public int hashCode() {
  60                 int hash = 423423 + 37 * index;
  61                 if (hasChildReference()) hash = 31*hash + childReference.hashCode();
  62                 return hash;
  63         }
  64
  65 }
  66