001/* 
002 * JKNIV, whinstone one contract to access your database.
003 * 
004 * Copyright (C) 2017, the original author or authors.
005 *
006 * This library is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 2.1 of the License.
010 * 
011 * This library is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014 * Lesser General Public License for more details.
015 * 
016 * You should have received a copy of the GNU Lesser General Public
017 * License along with this library; if not, write to the Free Software Foundation, Inc., 
018 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
019 */
020package net.sf.jkniv.whinstone.jpa2.commands;
021
022import java.sql.ResultSet;
023
024import net.sf.jkniv.exception.HandleableException;
025import net.sf.jkniv.whinstone.Queryable;
026import net.sf.jkniv.whinstone.commands.Command;
027import net.sf.jkniv.whinstone.commands.CommandHandler;
028import net.sf.jkniv.whinstone.jpa2.statement.JpaStatementAdapter;
029
030public class DefaultJpaCommand implements Command
031{
032    protected final Queryable queryable;
033    protected JpaStatementAdapter<Number, ResultSet> stmt;
034    protected HandleableException handlerException;
035    
036    public DefaultJpaCommand(Queryable queryable)
037    {
038        super();
039        this.queryable = queryable;
040    }
041    
042    @Override
043    public <T> Command with(T stmt)
044    {
045        this.stmt = (JpaStatementAdapter<Number, ResultSet>) stmt;
046        return this;
047    }
048    
049    @Override
050    public Command with(HandleableException handlerException)
051    {
052        this.handlerException = handlerException;
053        return this;
054    }
055    
056    @Override
057    public Command with(CommandHandler commandHandler)
058    {
059        return this;
060    }
061    
062    @Override
063    @SuppressWarnings("unchecked")
064    public <T> T execute()
065    {
066        Integer rows = 0;
067        if(queryable.isTypeOfBulk())
068            rows = queryable.bind(stmt).onBulk();
069        else
070        {
071            queryable.bind(stmt).on();
072            rows = stmt.execute();
073        }
074        return (T) rows;
075    }
076}