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    
021    package cascading.flow.stream;
022    
023    import java.util.List;
024    import java.util.Set;
025    
026    import cascading.flow.FlowElement;
027    import cascading.flow.planner.Scope;
028    
029    /**
030     *
031     */
032    public interface ElementDuct
033      {
034      Set<String> getBranchNames();
035    
036      void setBranchNames( Set<String> branchNames );
037    
038      FlowElement getFlowElement();
039    
040      void setTrapHandler( TrapHandler trapHandler );
041    
042      boolean hasTrapHandler();
043    
044      void addIncomingScope( Scope incomingScope );
045    
046      void addOutgoingScope( Scope outgoingScope );
047    
048      List<Scope> getIncomingScopes();
049    
050      List<Scope> getOutgoingScopes();
051      }