// Openbravo POS is a point of sales application designed for touch screens.
// Copyright (C) 2007-2009 Openbravo, S.L.
// http://www.openbravo.com/product/pos
//
// This file is part of Openbravo POS.
//
// Openbravo POS is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Openbravo POS is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Openbravo POS. If not, see <http://www.gnu.org/licenses/>.
package com.openbravo.data.loader;
import com.openbravo.basic.BasicException;
public class SequenceForDerby extends BaseSentence {
private final BaseSentence sent1;
private final BaseSentence sent2;
private final BaseSentence sent3;
private final BaseSentence sent4;
private final BaseSentence sent5;
public SequenceForDerby(Session s, String sSeqTable) {
sent1 = new StaticSentence(s, "SELECT MAX(ID) FROM " + sSeqTable, null, SerializerReadInteger.INSTANCE);
sent2 = new StaticSentence(s, "ALTER TABLE " + sSeqTable + " ALTER COLUMN ID RESTART WITH ?", SerializerWriteInteger.INSTANCE, null);
sent3 = new StaticSentence(s, "DELETE FROM " + sSeqTable);
sent4 = new StaticSentence(s, "INSERT INTO " + sSeqTable + " VALUES (DEFAULT)");
sent5 = new StaticSentence(s, "SELECT ID FROM " + sSeqTable, null, SerializerReadInteger.INSTANCE);
}
// Funciones de bajo nivel
@Override
public DataResultSet openExec(Object params) throws BasicException {
int i = (Integer) sent1.find();
sent2.exec(i + 1);
sent3.exec();
sent4.exec();
return sent5.openExec(null);
}
@Override
public DataResultSet moreResults() throws BasicException {
return sent3.moreResults();
}
@Override
public void closeExec() throws BasicException {
sent3.closeExec();
}
}