Version 1.5.6

dart/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/index/file/RelationKeyData.java

+/*
+ * Copyright (c) 2014, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.dart.engine.internal.index.file;
+
+import com.google.dart.engine.element.Element;
+import com.google.dart.engine.index.Location;
+import com.google.dart.engine.index.Relationship;
+
+/**
+ * An {@link Element} to {@link Location} relation key.
+ * 
+ * @coverage dart.engine.index
+ */
+public class RelationKeyData {
+  final int elementId;
+  final int relationshipId;
+
+  public RelationKeyData(ElementCodec elementCodec, RelationshipCodec relationshipCodec,
+      Element element, Relationship relationship) {
+    this.elementId = elementCodec.encode(element);
+    this.relationshipId = relationshipCodec.encode(relationship);
+  }
+
+  public RelationKeyData(int elementId, int relationshipId) {
+    this.elementId = elementId;
+    this.relationshipId = relationshipId;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (!(obj instanceof RelationKeyData)) {
+      return false;
+    }
+    RelationKeyData other = (RelationKeyData) obj;
+    return other.elementId == elementId && other.relationshipId == relationshipId;
+  }
+
+  @Override
+  public int hashCode() {
+    return 31 * elementId + relationshipId;
+  }
+}