001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    
021    package javax.servlet;
022    
023    import java.util.Map;
024    import java.util.Set;
025    
026    /**
027     * @version $Rev: 835965 $ $Date: 2009-11-13 14:40:44 -0500 (Fri, 13 Nov 2009) $
028     * @since 3.0
029     */
030    public interface Registration {
031    
032        /**
033         *
034         * @return the class name of filter or servlet this registered
035         */
036        String getClassName();
037    
038        /**
039         *
040         * @param name init parameter name
041         * @return init parameter value or null if not set
042         */
043        String getInitParameter(String name);
044    
045        /**
046         *
047         * @return non-null immutable map of all init parameters
048         */
049        Map<String, String> getInitParameters();
050    
051        /**
052         *
053         * @return name of filter or servlet this initialised
054         */
055        String getName();
056    
057        /**
058         * Set one init parameter
059         * @param name parameter name
060         * @param value parameter value
061         * @return true if init parameter was set, false if it was previously set.
062         */
063        boolean setInitParameter(String name, String value);
064    
065        /**
066         *
067         * @param initParameters map of name-value paramters
068         * @return set of previously set parameter names (i.e. those where setInitParameter would have returned false)
069         */
070        Set<String> setInitParameters(Map<String, String> initParameters);
071    
072        public interface Dynamic extends Registration {
073    
074            void setAsyncSupported(boolean asyncSupported);
075    
076        }
077    }