    001    /*
    002     * Copyright (c) 2007-2014 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      }