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/*
 * 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.tuscany.sca.assembly;

/**
 * Represents a reference contract.
 * 
 * @version $Rev: 537384 $ $Date: 2007-05-12 04:02:56 -0700 (Sat, 12 May 2007) $
 */
public interface AbstractReference extends AbstractContract {

    /**
     * Returns the multiplicity allowed for wires connected to this reference.
     * 
     * @return the multiplicity allowed for wires connected to this reference
     */
    Multiplicity getMultiplicity();

    /**
     * Sets the multiplicity allowed for wires connected to this reference.
     * 
     * @param multiplicity the multiplicity allowed for wires connected to this
     *            reference
     */
    void setMultiplicity(Multiplicity multiplicity);

}