01: package org.apache.velocity.util.introspection;
02:
03: /*
04: * Licensed to the Apache Software Foundation (ASF) under one
05: * or more contributor license agreements. See the NOTICE file
06: * distributed with this work for additional information
07: * regarding copyright ownership. The ASF licenses this file
08: * to you under the Apache License, Version 2.0 (the
09: * "License"); you may not use this file except in compliance
10: * with the License. You may obtain a copy of the License at
11: *
12: * http://www.apache.org/licenses/LICENSE-2.0
13: *
14: * Unless required by applicable law or agreed to in writing,
15: * software distributed under the License is distributed on an
16: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17: * KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations
19: * under the License.
20: */
21:
22: /**
23: * Method used for regular method invocation
24: *
25: * $foo.bar()
26: *
27: *
28: * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
29: * @version $Id: VelMethod.java 463298 2006-10-12 16:10:32Z henning $
30: */
31: public interface VelMethod {
32: /**
33: * invocation method - called when the method invocationshould be
34: * preformed and a value returned
35: * @param o
36: * @param params
37: * @return The resulting object.
38: * @throws Exception
39: */
40: public Object invoke(Object o, Object[] params) throws Exception;
41:
42: /**
43: * specifies if this VelMethod is cacheable and able to be
44: * reused for this class of object it was returned for
45: *
46: * @return true if can be reused for this class, false if not
47: */
48: public boolean isCacheable();
49:
50: /**
51: * returns the method name used
52: * @return The method name used
53: */
54: public String getMethodName();
55:
56: /**
57: * returns the return type of the method invoked
58: * @return The return type of the method invoked
59: */
60: public Class getReturnType();
61: }
|