001/* 002 * Copyright (c) 2007-2015 Concurrent, Inc. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.flow.planner.graph; 022 023import cascading.flow.FlowElement; 024import cascading.util.EnumMultiMap; 025 026/** 027 * 028 */ 029public class AnnotatedDecoratedElementGraph extends DecoratedElementGraph implements AnnotatedGraph 030 { 031 private final EnumMultiMap<FlowElement> annotations; 032 033 public AnnotatedDecoratedElementGraph( ElementGraph decorated, EnumMultiMap<FlowElement> annotations ) 034 { 035 super( decorated ); 036 037 if( annotations == null ) 038 throw new IllegalArgumentException( "annotations are required" ); 039 040 this.annotations = annotations; 041 } 042 043 @Override 044 public boolean hasAnnotations() 045 { 046 return annotations != null && !annotations.isEmpty(); 047 } 048 049 @Override 050 public EnumMultiMap<FlowElement> getAnnotations() 051 { 052 return annotations; 053 } 054 055 @Override 056 public int hashCode() 057 { 058 int result = super.hashCode(); 059 result = 31 * result + ( annotations != null ? annotations.hashCode() : 0 ); 060 return result; 061 } 062 }