bundles/org.simantics.project/src/org/simantics/project/features/registry/InjectedDependency.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2012 Association for Decentralized Information Management
   3  * in 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.project.features.registry;
  13
  14 /**
  15  * @author Tuukka Lehtonen
  16  */
  17 public class InjectedDependency {
  18
  19         public final ProjectFeatureReference from;
  20         public final ProjectFeatureReference to;
  21
  22         public InjectedDependency(ProjectFeatureReference from, ProjectFeatureReference to) {
  23                 if (from == null)
  24                         throw new NullPointerException("null from reference");
  25                 if (to == null)
  26                         throw new NullPointerException("null to reference");
  27                 this.from = from;
  28                 this.to = to;
  29         }
  30
  31         @Override
  32         public String toString() {
  33                 return from + " -> " + to;
  34         }
  35
  36         @Override
  37         public int hashCode() {
  38                 final int prime = 31;
  39                 int result = 1;
  40                 result = prime * result + from.hashCode();
  41                 result = prime * result + to.hashCode();
  42                 return result;
  43         }
  44
  45         @Override
  46         public boolean equals(Object obj) {
  47                 if (this == obj)
  48                         return true;
  49                 if (obj == null)
  50                         return false;
  51                 if (getClass() != obj.getClass())
  52                         return false;
  53                 InjectedDependency other = (InjectedDependency) obj;
  54                 return from.equals(other.from) && to.equals(other.to);
  55         }
  56
  57 }