platform/lang-impl/src/com/intellij/extapi/psi/StubPath.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /*
  18  * @author max
  19  */
  20 package com.intellij.extapi.psi;
  21
  22 import com.intellij.psi.tree.IElementType;
  23
  24 public class StubPath {
  25   private final StubPath myParentPath;
  26   private final String myId;
  27   private final IElementType myType;
  28
  29
  30   public StubPath(final StubPath parentPath, final String id, final IElementType type) {
  31     myParentPath = parentPath;
  32     myId = id;
  33     myType = type;
  34   }
  35
  36   public StubPath getParentPath() {
  37     return myParentPath;
  38   }
  39
  40
  41   public String getId() {
  42     return myId;
  43   }
  44
  45   public IElementType getType() {
  46     return myType;
  47   }
  48
  49   public boolean equals(final Object o) {
  50     if (this == o) return true;
  51     if (!(o instanceof StubPath)) return false;
  52
  53     final StubPath stubPath = (StubPath)o;
  54
  55     if (!myId.equals(stubPath.myId)) return false;
  56     if (myParentPath != null ? !myParentPath.equals(stubPath.myParentPath) : stubPath.myParentPath != null) return false;
  57     if (!myType.equals(stubPath.myType)) return false;
  58
  59     return true;
  60   }
  61
  62   public int hashCode() {
  63     int result = (myParentPath != null ? myParentPath.hashCode() : 0);
  64     result = 31 * result + myId.hashCode();
  65     result = 31 * result + myType.hashCode();
  66     return result;
  67   }
  68
  69   public String toString() {
  70     return new StringBuilder().
  71         append(myParentPath != null ? myParentPath.toString() : "").
  72         append("::(").
  73         append(myType.toString()).
  74         append(":").
  75         append(myId).
  76         append(")").toString();
  77   }
  78 }