01: /****************************************************************
02: * Licensed to the Apache Software Foundation (ASF) under one *
03: * or more contributor license agreements. See the NOTICE file *
04: * distributed with this work for additional information *
05: * regarding copyright ownership. The ASF licenses this file *
06: * to you under the Apache License, Version 2.0 (the *
07: * "License"); you may not use this file except in compliance *
08: * with the License. You may obtain a copy of the License at *
09: * *
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: ****************************************************************/package org.apache.james.transport.matchers;
19:
20: import org.apache.mailet.GenericMatcher;
21: import org.apache.mailet.Mail;
22:
23: import java.util.Collection;
24:
25: /**
26: * @version 1.0.0, 04/12/2000
27: */
28: public class IsSingleRecipient extends GenericMatcher {
29:
30: public Collection match(Mail mail) {
31: if (mail.getRecipients().size() == 1) {
32: return mail.getRecipients();
33: } else {
34: return null;
35: }
36: }
37: }
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