/*
* Copyright 2004-2011 H2 Group. Multiple-Licensed under the H2 License,
* Version 1.0, and under the Eclipse Public License, Version 1.0
* (http://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.test.db;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import org.h2.constant.ErrorCode;
import org.h2.test.TestBase;
/**
* Tests if prepared statements are re-compiled when required.
*/
public class TestAutoRecompile extends TestBase {
/**
* Run just this test.
*
* @param a ignored
*/
public static void main(String... a) throws Exception {
TestBase.createCaller().init().test();
}
public void test() throws SQLException {
deleteDb("autoRecompile");
Connection conn = getConnection("autoRecompile");
Statement stat = conn.createStatement();
stat.execute("CREATE TABLE TEST(ID INT PRIMARY KEY)");
PreparedStatement prep = conn.prepareStatement("SELECT * FROM TEST");
assertEquals(1, prep.executeQuery().getMetaData().getColumnCount());
stat.execute("ALTER TABLE TEST ADD COLUMN NAME VARCHAR(255)");
assertEquals(2, prep.executeQuery().getMetaData().getColumnCount());
stat.execute("DROP TABLE TEST");
stat.execute("CREATE TABLE TEST(ID INT PRIMARY KEY, X INT, Y INT)");
assertEquals(3, prep.executeQuery().getMetaData().getColumnCount());
// TODO test auto-recompile with insert..select, views and so on
prep = conn.prepareStatement("INSERT INTO TEST VALUES(1, 2, 3)");
stat.execute("ALTER TABLE TEST ADD COLUMN Z INT");
assertThrows(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH, prep).execute();
assertThrows(ErrorCode.COLUMN_COUNT_DOES_NOT_MATCH, prep).execute();
conn.close();
deleteDb("autoRecompile");
}
}