001/*
002 * HA-JDBC: High-Availability JDBC
003 * Copyright (C) 2012  Paul Ferraro
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Lesser General Public License as published by
007 * the Free Software Foundation, either version 3 of the License, or
008 * (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Lesser General Public License for more details.
014 *
015 * You should have received a copy of the GNU Lesser General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018package net.sf.hajdbc.sql;
019
020import java.lang.reflect.Method;
021import java.sql.CallableStatement;
022import java.sql.PreparedStatement;
023import java.sql.SQLException;
024import java.util.Set;
025
026import net.sf.hajdbc.Database;
027import net.sf.hajdbc.invocation.InvocationStrategies;
028import net.sf.hajdbc.invocation.InvocationStrategy;
029import net.sf.hajdbc.util.reflect.Methods;
030
031/**
032 * @author Paul Ferraro
033 * @param <D> 
034 */
035@SuppressWarnings("nls")
036public class CallableStatementInvocationHandler<Z, D extends Database<Z>> extends AbstractPreparedStatementInvocationHandler<Z, D, CallableStatement, CallableStatementProxyFactory<Z, D>>
037{
038        private static final Set<Method> registerOutParameterMethods = Methods.findMethods(CallableStatement.class, "registerOutParameter");
039        private static final Set<Method> setMethods = Methods.findMethods(CallableStatement.class, "set\\w+");
040        private static final Set<Method> driverReadMethods = Methods.findMethods(CallableStatement.class, "get\\w+", "wasNull");
041        {
042                driverReadMethods.removeAll(Methods.findMethods(PreparedStatement.class, "get\\w+"));
043        }
044        
045        public CallableStatementInvocationHandler(CallableStatementProxyFactory<Z, D> proxyFactory)
046        {
047                super(CallableStatement.class, proxyFactory, setMethods);
048        }
049
050        /**
051         * @see net.sf.hajdbc.sql.AbstractStatementInvocationHandler#getInvocationStrategy(java.sql.Statement, java.lang.reflect.Method, java.lang.Object[])
052         */
053        @Override
054        protected InvocationStrategy getInvocationStrategy(CallableStatement statement, Method method, Object... parameters) throws SQLException
055        {
056                if (registerOutParameterMethods.contains(method))
057                {
058                        return InvocationStrategies.INVOKE_ON_EXISTING;
059                }
060                
061                if (driverReadMethods.contains(method))
062                {
063                        return InvocationStrategies.INVOKE_ON_ANY;
064                }
065                
066                return super.getInvocationStrategy(statement, method, parameters);
067        }
068
069        /**
070         * @see net.sf.hajdbc.sql.AbstractPreparedStatementInvocationHandler#isBatchMethod(java.lang.reflect.Method)
071         */
072        @Override
073        protected boolean isBatchMethod(Method method)
074        {
075                return registerOutParameterMethods.contains(method) || super.isBatchMethod(method);
076        }
077
078        /**
079         * @see net.sf.hajdbc.sql.AbstractPreparedStatementInvocationHandler#isIndexType(java.lang.Class)
080         */
081        @Override
082        protected boolean isIndexType(Class<?> type)
083        {
084                return super.isIndexType(type) || type.equals(String.class);
085        }
086}