Edge.java

/**
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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 org.apache.airavata.workflow.model.graph;


public interface Edge extends GraphPiece {

    /**
     * @return the port that the edget connected from
     */
    public Port getFromPort();

    /**
     * @return the port that the edget connected to
     */
    public Port getToPort();

    /**
     * Label for Stream edge
     * 
     * @return
     */
    public String getLabel();

    /**
     * Sets label.
     * 
     * @param label
     *            The label to set.
     */
    public void setLabel(String label);

}