| /* Copyright (c) 2001-2010, The HSQL Development Group |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * Redistributions of source code must retain the above copyright notice, this |
| * list of conditions and the following disclaimer. |
| * |
| * Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * Neither the name of the HSQL Development Group nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, |
| * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| |
| package org.hsqldb.test; |
| |
| /* |
| * CascadeDeleteBug.java |
| * |
| * Created on June 24, 2002, 8:48 AM |
| */ |
| import java.io.File; |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Test case to demonstrate catastrophic bug in cascade delete code. |
| * |
| * @version 1.0 |
| * @author David Kopp |
| */ |
| public class TestCascade extends TestCase { |
| |
| Connection con; |
| |
| public TestCascade(String name) { |
| super(name); |
| } |
| |
| protected void setUp() { |
| |
| try { |
| Class.forName("org.hsqldb.jdbc.JDBCDriver"); |
| createDatabase(); |
| |
| con = DriverManager.getConnection("jdbc:hsqldb:testdb", "sa", ""); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| System.out.println(this + ".setUp() error: " + e.getMessage()); |
| } |
| } |
| |
| protected void tearDown() { |
| |
| try { |
| con.createStatement().execute("SHUTDOWN"); |
| con.close(); |
| } catch (SQLException e) {} |
| } |
| |
| public void testDelete() { |
| |
| try { |
| insertData(con); |
| |
| Statement stmt = con.createStatement(); |
| ResultSet rs = |
| stmt.executeQuery("SELECT COUNT(EIACODXA) FROM CA"); |
| |
| rs.next(); |
| |
| int origCount = rs.getInt(1); |
| |
| rs.close(); |
| deleteXBRecord(con); |
| |
| rs = stmt.executeQuery("SELECT COUNT(EIACODXA) FROM CA"); |
| |
| rs.next(); |
| |
| int newCount = rs.getInt(1); |
| |
| rs.close(); |
| stmt.close(); |
| assertEquals(9, newCount); |
| } catch (SQLException e) { |
| this.assertTrue("SQLException thrown", false); |
| } |
| } |
| |
| private static void createDatabase() throws SQLException { |
| |
| new File("testdb.backup").delete(); |
| new File("testdb.data").delete(); |
| new File("testdb.properties").delete(); |
| new File("testdb.script").delete(); |
| |
| Connection con = DriverManager.getConnection("jdbc:hsqldb:testdb", |
| "sa", ""); |
| String[] saDDL = { |
| "CREATE CACHED TABLE XB (EIACODXA VARCHAR(10) NOT NULL, LSACONXB VARCHAR(18) NOT NULL, ALTLCNXB VARCHAR(2) NOT NULL, LCNTYPXB VARCHAR(1) NOT NULL, LCNINDXB VARCHAR(1), LCNAMEXB VARCHAR(19), UPDT_BY VARCHAR(32), LST_UPDT TIMESTAMP, CONSTRAINT XPKXB PRIMARY KEY (EIACODXA, LSACONXB, ALTLCNXB, LCNTYPXB));", |
| |
| // "CREATE INDEX XIF2XB ON XB (EIACODXA);", |
| "CREATE CACHED TABLE CA ( EIACODXA VARCHAR(10) NOT NULL, LSACONXB VARCHAR(18) NOT NULL, ALTLCNXB VARCHAR(2) NOT NULL, LCNTYPXB VARCHAR(1) NOT NULL, TASKCDCA VARCHAR(7) NOT NULL, TSKFRQCA NUMERIC(7,4), UPDT_BY VARCHAR(32), LST_UPDT TIMESTAMP, CONSTRAINT XPKCA PRIMARY KEY (EIACODXA, LSACONXB, ALTLCNXB, LCNTYPXB, TASKCDCA), CONSTRAINT R_XB_CA FOREIGN KEY (EIACODXA, LSACONXB, ALTLCNXB, LCNTYPXB) REFERENCES XB ON DELETE CASCADE);", |
| |
| // "CREATE INDEX XIF26CA ON CA ( EIACODXA, LSACONXB, ALTLCNXB, LCNTYPXB);" |
| }; |
| Statement stmt = con.createStatement(); |
| |
| for (int index = 0; index < saDDL.length; index++) { |
| stmt.executeUpdate(saDDL[index]); |
| } |
| |
| stmt.execute("SHUTDOWN"); |
| con.close(); |
| } // createDatabase |
| |
| /** |
| * This method demonstrates the bug in cascading deletes. Before this method, |
| * the CA table has 12 records. After, it should have 9, but instead it has |
| * 0. |
| */ |
| private static void deleteXBRecord(Connection con) throws SQLException { |
| |
| Statement stmt = con.createStatement(); |
| |
| stmt.executeUpdate( |
| "DELETE FROM XB WHERE LSACONXB = 'LEAA' AND EIACODXA = 'T850' AND LCNTYPXB = 'P' AND ALTLCNXB = '00'"); |
| stmt.close(); |
| } // deleteXBRecord |
| |
| private static void insertData(Connection con) throws SQLException { |
| |
| String[] saData = { |
| "INSERT INTO XB VALUES('T850','LEAA','00','P',NULL,'LCN NAME','sa',NOW)", |
| "INSERT INTO XB VALUES('T850','LEAA01','00','P',NULL,'LCN NAME','sa',NOW)", |
| "INSERT INTO XB VALUES('T850','LEAA02','00','P',NULL,'LCN NAME','sa',NOW)", |
| "INSERT INTO XB VALUES('T850','LEAA03','00','P',NULL,'LCN NAME','sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA','00','P','ABCDEFG',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA','00','P','QRSTUJV',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA','00','P','ZZZZZZZ',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA01','00','P','ABCDEFG',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA01','00','P','QRSTUJV',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA01','00','P','ZZZZZZZ',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA02','00','P','ABCDEFG',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA02','00','P','QRSTUJV',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA02','00','P','ZZZZZZZ',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA03','00','P','ABCDEFG',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA03','00','P','QRSTUJV',3.14,'sa',NOW)", |
| "INSERT INTO CA VALUES('T850','LEAA03','00','P','ZZZZZZZ',3.14,'sa',NOW)" |
| }; |
| Statement stmt = con.createStatement(); |
| |
| for (int index = 0; index < saData.length; index++) { |
| stmt.executeUpdate(saData[index]); |
| } |
| } // insertData |
| } |