001    // Copyright 2007 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    
015    package org.apache.tapestry5.ioc.internal;
016    
017    /**
018     * Used in concert with {@link org.apache.tapestry5.ioc.internal.SerializationSupport} to convert service tokens back
019     * into service proxies.
020     */
021    public interface ServiceProxyProvider
022    {
023        /**
024         * Look up the service and return it's proxy.
025         *
026         * @param serviceId the id of the service to obtain
027         * @return the service proxy
028         * @throws RuntimeException if the service does not exist or does not have a proxy
029         */
030        Object provideServiceProxy(String serviceId);
031    }