001// Copyright 2012 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007// http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.clojure;
016
017import clojure.lang.Symbol;
018import org.apache.tapestry5.ioc.annotations.UsesOrderedConfiguration;
019
020import java.lang.reflect.Method;
021
022/**
023 * Maps a method from a service interface to a fully-qualified Clojure function name, as a Clojure
024 * {@link clojure.lang.Symbol}. This service is itself a chain of command, to support adding or overriding
025 * the mapping.
026 */
027@UsesOrderedConfiguration(MethodToFunctionSymbolMapper.class)
028public interface MethodToFunctionSymbolMapper
029{
030    /**
031     * @param namespace
032     *         namespace for the service (from {@link Namespace} annotation)
033     * @param method
034     *         method for which a function name is desired.
035     * @return Symbol for this method, or null (to drop down to next mapper)
036     */
037    Symbol mapMethod(String namespace, Method method);
038}