org.hibernate.dialect.SQLServerDialect Java Examples

/**
 * Determine the Hibernate database dialect class for the given target database.
 * @param database the target database
 * @return the Hibernate database dialect class, or {@code null} if none found
 */
@SuppressWarnings("deprecation")
protected Class<?> determineDatabaseDialectClass(Database database) {
	switch (database) {
		case DB2: return DB2Dialect.class;
		case DERBY: return DerbyDialect.class;  // DerbyDialect deprecated in 4.x
		case H2: return H2Dialect.class;
		case HSQL: return HSQLDialect.class;
		case INFORMIX: return InformixDialect.class;
		case MYSQL: return MySQLDialect.class;
		case ORACLE: return Oracle9iDialect.class;
		case POSTGRESQL: return PostgreSQLDialect.class;  // PostgreSQLDialect deprecated in 4.x
		case SQL_SERVER: return SQLServerDialect.class;
		case SYBASE: return org.hibernate.dialect.SybaseDialect.class;  // SybaseDialect deprecated in 3.6 but not 4.x
		default: return null;
	}
}
 

public static EngineDecorator getEngineDecorator(String dialect) throws ClassNotFoundException {
	Class<?> dialectClass = Class.forName(dialect);
	if (MySQLDialect.class.isAssignableFrom(dialectClass)) {
		return new MySQLDecorator();
	} else if (PostgreSQL81Dialect.class.isAssignableFrom(dialectClass)) {
		return new PostgreSQLDecorator();
	} else if (Oracle8iDialect.class.isAssignableFrom(dialectClass)) {
		return new OracleDecorator();
	} else if (SQLServerDialect.class.isAssignableFrom(dialectClass)) {
		return new SQLServerDecorator();
	}
	return new NoOpDecorator();

}
 

public void testStr() {
	Session session = openSession();
	Transaction txn = session.beginTransaction();
	Animal an = new Animal();
	an.setBodyWeight(123.45f);
	session.persist(an);
	String str = (String) session.createQuery("select str(an.bodyWeight) from Animal an where str(an.bodyWeight) like '123%' or str(an.bodyWeight) like '1.23%'").uniqueResult();
	if ( getDialect() instanceof DB2Dialect ) {
		assertTrue( str.startsWith("1.234") );
	}
	else if ( getDialect() instanceof SQLServerDialect ) {
		// no assertion as SQLServer always returns nulls here; even trying directly against the
		// database, it seems to have problems with str() in the where clause...
	}
	else {
		assertTrue( str.startsWith("123.4") );
	}
	if ( ! ( getDialect() instanceof SybaseDialect ) ) {
		// In TransactSQL (the variant spoken by Sybase and SQLServer), the str() function
		// is explicitly intended for numeric values only...
		String dateStr1 = (String) session.createQuery("select str(current_date) from Animal").uniqueResult();
		String dateStr2 = (String) session.createQuery("select str(year(current_date))||'-'||str(month(current_date))||'-'||str(day(current_date)) from Animal").uniqueResult();
		System.out.println(dateStr1 + '=' + dateStr2);
		if ( ! ( getDialect() instanceof Oracle9Dialect || getDialect() instanceof Oracle8iDialect ) ) { //Oracle renders the name of the month :(
			String[] dp1 = StringHelper.split("-", dateStr1);
			String[] dp2 = StringHelper.split("-", dateStr2);
			for (int i=0; i<3; i++) {
				if ( dp1[i].startsWith( "0" ) ) {
					dp1[i] = dp1[i].substring( 1 );
				}
				assertEquals( dp1[i], dp2[i] );
			}
		}
	}
	session.delete(an);
	txn.commit();
	session.close();
}
 

private void addDialects(StrategySelectorImpl strategySelector) {
	addDialect( strategySelector, Cache71Dialect.class );
	addDialect( strategySelector, CUBRIDDialect.class );
	addDialect( strategySelector, DB2Dialect.class );
	addDialect( strategySelector, DB2390Dialect.class );
	addDialect( strategySelector, DB2390V8Dialect.class );
	addDialect( strategySelector, DB2400Dialect.class );
	addDialect( strategySelector, DerbyTenFiveDialect.class );
	addDialect( strategySelector, DerbyTenSixDialect.class );
	addDialect( strategySelector, DerbyTenSevenDialect.class );
	addDialect( strategySelector, FirebirdDialect.class );
	addDialect( strategySelector, FrontBaseDialect.class );
	addDialect( strategySelector, H2Dialect.class );
	addDialect( strategySelector, HANAColumnStoreDialect.class );
	addDialect( strategySelector, HANARowStoreDialect.class );
	addDialect( strategySelector, HSQLDialect.class );
	addDialect( strategySelector, InformixDialect.class );
	addDialect( strategySelector, IngresDialect.class );
	addDialect( strategySelector, Ingres9Dialect.class );
	addDialect( strategySelector, Ingres10Dialect.class );
	addDialect( strategySelector, InterbaseDialect.class );
	addDialect( strategySelector, JDataStoreDialect.class );
	addDialect( strategySelector, MckoiDialect.class );
	addDialect( strategySelector, MimerSQLDialect.class );
	addDialect( strategySelector, MySQL5Dialect.class );
	addDialect( strategySelector, MySQL5InnoDBDialect.class );
	addDialect( strategySelector, MySQL57InnoDBDialect.class );
	addDialect( strategySelector, MySQL57Dialect.class );
	addDialect( strategySelector, Oracle8iDialect.class );
	addDialect( strategySelector, Oracle9iDialect.class );
	addDialect( strategySelector, Oracle10gDialect.class );
	addDialect( strategySelector, PointbaseDialect.class );
	addDialect( strategySelector, PostgresPlusDialect.class );
	addDialect( strategySelector, PostgreSQL81Dialect.class );
	addDialect( strategySelector, PostgreSQL82Dialect.class );
	addDialect( strategySelector, PostgreSQL9Dialect.class );
	addDialect( strategySelector, ProgressDialect.class );
	addDialect( strategySelector, SAPDBDialect.class );
	addDialect( strategySelector, SQLServerDialect.class );
	addDialect( strategySelector, SQLServer2005Dialect.class );
	addDialect( strategySelector, SQLServer2008Dialect.class );
	addDialect( strategySelector, Sybase11Dialect.class );
	addDialect( strategySelector, SybaseAnywhereDialect.class );
	addDialect( strategySelector, SybaseASE15Dialect.class );
	addDialect( strategySelector, SybaseASE157Dialect.class );
	addDialect( strategySelector, TeradataDialect.class );
	addDialect( strategySelector, TimesTenDialect.class );
}
 

public void testStaleVersionedInstanceFoundOnLock() {
	if ( ! readCommittedIsolationMaintained( "repeatable read tests" ) ) {
		return;
	}
	if ( getDialect().doesReadCommittedCauseWritersToBlockReaders()) {
		reportSkip( "lock blocking", "stale versioned instance" );
		return;
	}
	String check = "EJB3 Specification";
	Session s1 = getSessions().openSession();
	Transaction t1 = s1.beginTransaction();
	Item item = new Item( check );
	s1.save(  item );
	t1.commit();
	s1.close();

	Long itemId = item.getId();
	long initialVersion = item.getVersion();

	// Now, open a new Session and re-load the item...
	s1 = getSessions().openSession();
	t1 = s1.beginTransaction();
	item = ( Item ) s1.get( Item.class, itemId );

	// now that the item is associated with the persistence-context of that session,
	// open a new session and modify it "behind the back" of the first session
	Session s2 = getSessions().openSession();
	Transaction t2 = s2.beginTransaction();
	Item item2 = ( Item ) s2.get( Item.class, itemId );
	item2.setName( "EJB3 Persistence Spec" );
	t2.commit();
	s2.close();

	// at this point, s1 now contains stale data, so acquire a READ lock
	// and make sure we get the already associated state (i.e., the old
	// name and the old version)
	s1.lock( item, LockMode.READ );
	item2 = ( Item ) s1.get( Item.class, itemId );
	assertTrue( item == item2 );
	assertEquals( "encountered non-repeatable read", check, item2.getName() );
	assertEquals( "encountered non-repeatable read", initialVersion, item2.getVersion() );

	// attempt to acquire an UPGRADE lock; this should fail
	try {
		s1.lock( item, LockMode.UPGRADE );
		fail( "expected UPGRADE lock failure" );
	}
	catch( StaleObjectStateException expected ) {
		// this is the expected behavior
	}
	catch( SQLGrammarException t ) {
		if ( getDialect() instanceof SQLServerDialect ) {
			// sql-server (using snapshot isolation) reports this as a grammar exception /:)
			//
			// not to mention that it seems to "lose track" of the transaction in this scenario...
			t1.rollback();
			t1 = s1.beginTransaction();
		}
		else {
			throw t;
		}
	}

	t1.commit();
	s1.close();

	// clean up
	s1 = getSessions().openSession();
	t1 = s1.beginTransaction();
	s1.createQuery( "delete Item" ).executeUpdate();
	t1.commit();
	s1.close();
}
 

public void testLoadSaveRepository() throws Exception {

		Connection theConnection = createConnection();

		Class theHibernateDialect = SQLServerDialect.class;

		String theModelResource = "/de/erdesignerng/test/io/repository/examplemodel.mxm";

		String theNewFile = RepositioryHelper.performRepositorySaveAndLoad(theModelResource, theHibernateDialect,
				theConnection);

		String theOriginalFile = IOUtils.toString(getClass().getResourceAsStream(theModelResource));

		assertTrue(compareStrings(theOriginalFile, theNewFile));
	}