001    /****************************************************************
002     * Licensed to the Apache Software Foundation (ASF) under one   *
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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     *                                                              *
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014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
015     * KIND, either express or implied.  See the License for the    *
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018     ****************************************************************/
019    
020    package org.apache.james.jspf.executor;
021    
022    import org.apache.james.jspf.core.DNSRequest;
023    
024    
025    
026    /**
027     * Interface which should be used to access all necassary DNS-Records
028     *  
029     */
030    public interface DNSAsynchLookupService {
031    
032        /**
033         * Retrieve dns records for the given host asynchronously
034         * 
035         * @param request the dns request
036         * @param id the identification key for the response.
037         * @param responsePool the queue where the response will be appended.
038         */
039        public void getRecordsAsynch(DNSRequest request, int id,
040                final IResponseQueue responsePool);
041    
042    }