001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (c) 2004-2007 Paul Ferraro
004 * 
005 * This library is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Lesser General Public License as published by the 
007 * Free Software Foundation; either version 2.1 of the License, or (at your 
008 * option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful, but WITHOUT
011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 
012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
013 * for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this library; if not, write to the Free Software Foundation, 
017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
018 * 
019 * Contact: ferraro@users.sourceforge.net
020 */
021package net.sf.hajdbc.sql;
022
023import java.sql.ResultSet;
024import java.sql.Statement;
025
026import net.sf.hajdbc.util.reflect.ProxyFactory;
027
028/**
029 * @author Paul Ferraro
030 * @param <D> 
031 * @param <S> 
032 */
033public class LazyResultSetInvocationStrategy<D, S extends Statement> extends DatabaseReadInvocationStrategy<D, S, ResultSet>
034{
035        private S statement;
036        private TransactionContext<D> transactionContext;
037        private FileSupport fileSupport;
038        
039        /**
040         * @param statement the statement from which to create result sets
041         * @param transactionContext 
042         * @param fileSupport 
043         */
044        public LazyResultSetInvocationStrategy(S statement, TransactionContext<D> transactionContext, FileSupport fileSupport)
045        {
046                super();
047                
048                this.statement = statement;
049                this.transactionContext = transactionContext;
050                this.fileSupport = fileSupport;
051        }
052        
053        /**
054         * @see net.sf.hajdbc.sql.DatabaseReadInvocationStrategy#invoke(net.sf.hajdbc.sql.SQLProxy, net.sf.hajdbc.sql.Invoker)
055         */
056        @Override
057        public ResultSet invoke(SQLProxy<D, S> proxy, Invoker<D, S, ResultSet> invoker) throws Exception
058        {
059                return ProxyFactory.createProxy(ResultSet.class, new ResultSetInvocationHandler<D, S>(this.statement, proxy, invoker, this.invokeAll(proxy, invoker), this.transactionContext, this.fileSupport));
060        }
061}