Code example for Lockable

		registerColumnType( Types.SMALLINT, "smallint" );
		registerColumnType( Types.TINYINT, "tinyint" );
		registerColumnType( Types.INTEGER, "integer" );
		registerColumnType( Types.CHAR, "char(1)" );
		registerColumnType( Types.VARCHAR, "varchar($l)" );
		registerColumnType( Types.FLOAT, "float" );
		registerColumnType( Types.DOUBLE, "double" );
		registerColumnType( Types.DATE, "date" );
		registerColumnType( Types.TIME, "time" );
		registerColumnType( Types.TIMESTAMP, "timestamp" );
		registerColumnType( Types.VARBINARY, "varbinary" );
		registerColumnType( Types.NUMERIC, "numeric" );
		registerColumnType( Types.BLOB, "blob" );
		registerColumnType( Types.CLOB, "clob" );
 
		registerFunction( "upper", new StandardSQLFunction("upper") );
		registerFunction( "lower", new StandardSQLFunction("lower") );
		registerFunction( "sqrt", new StandardSQLFunction("sqrt", StandardBasicTypes.DOUBLE) );
		registerFunction( "abs", new StandardSQLFunction("abs") );
		registerFunction( "sign", new StandardSQLFunction( "sign", StandardBasicTypes.INTEGER ) );
		registerFunction( "round", new StandardSQLFunction( "round", StandardBasicTypes.INTEGER ) );
		registerFunction( "mod", new StandardSQLFunction( "mod", StandardBasicTypes.INTEGER ) );
		registerFunction( "least", new StandardSQLFunction("least") );
		registerFunction( "greatest", new StandardSQLFunction("greatest") );
		registerFunction( "user", new StandardSQLFunction( "user", StandardBasicTypes.STRING ) );
		registerFunction( "concat", new StandardSQLFunction( "concat", StandardBasicTypes.STRING ) );
 
		getDefaultProperties().setProperty(Environment.STATEMENT_BATCH_SIZE, NO_BATCH);
	} 
 
	public String getAddColumnString() {
		return "add column"; 
	} 
 
	public String getSequenceNextValString(String sequenceName) {
		return "select " + getSelectSequenceNextValString( sequenceName );
	} 
 
	public String getSelectSequenceNextValString(String sequenceName) {
		return "nextval('" + sequenceName + "')";
	} 
 
	public String getCreateSequenceString(String sequenceName) {
		return "create sequence " + sequenceName;
	} 
 
	public String getDropSequenceString(String sequenceName) {
		return "drop sequence " + sequenceName;
	} 
 
	public String getForUpdateString() {
		return ""; 
	} 
 
	public boolean supportsSequences() { 
		return true; 
	} 
 
	public CaseFragment createCaseFragment() {
		return new MckoiCaseFragment();
	} 
 
	public LockingStrategy getLockingStrategy(Lockable lockable, LockMode lockMode) {
		// Mckoi has no known variation of a "SELECT ... FOR UPDATE" syntax... 
		if ( lockMode==LockMode.PESSIMISTIC_FORCE_INCREMENT) {
			return new PessimisticForceIncrementLockingStrategy( lockable, lockMode);
		} 
		else if ( lockMode==LockMode.PESSIMISTIC_WRITE) {
			return new PessimisticWriteUpdateLockingStrategy( lockable, lockMode);
		} 
		else if ( lockMode==LockMode.PESSIMISTIC_READ) {
			return new PessimisticReadUpdateLockingStrategy( lockable, lockMode);
		} 
		else if ( lockMode==LockMode.OPTIMISTIC) {
			return new OptimisticLockingStrategy( lockable, lockMode);
		} 
		else if ( lockMode==LockMode.OPTIMISTIC_FORCE_INCREMENT) {
			return new OptimisticForceIncrementLockingStrategy( lockable, lockMode);
		} 
		else if ( lockMode.greaterThan( LockMode.READ ) ) {
			return new UpdateLockingStrategy( lockable, lockMode );
		} 
		else { 
			return new SelectLockingStrategy( lockable, lockMode );
		} 
	} 
}