1 /***************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 package org.apache.james.transport.matchers; 21 22 import org.apache.mailet.GenericMatcher; 23 import org.apache.mailet.Mail; 24 25 import java.util.Collection; 26 27 /*** 28 * @version 1.0.0, 04/12/2000 29 */ 30 public class IsSingleRecipient extends GenericMatcher { 31 32 public Collection match(Mail mail) { 33 if (mail.getRecipients().size() == 1) { 34 return mail.getRecipients(); 35 } else { 36 return null; 37 } 38 } 39 }