mondrian.spi.impl
Class FirebirdDialect

java.lang.Object
  mondrian.spi.impl.JdbcDialectImpl
      mondrian.spi.impl.FirebirdDialect

All Implemented Interfaces:

Dialect

public class FirebirdDialect
extends JdbcDialectImpl

Implementation of Dialect for the Firebird database.

Since:

Nov 23, 2008

Version:

$Id: //open/mondrian/src/main/mondrian/spi/impl/FirebirdDialect.java#4 $

Author:

jhyde

Nested Class Summary

Nested classes/interfaces inherited from interface mondrian.spi.Dialect

Dialect.DatabaseProduct, Dialect.Datatype, Dialect.NullCollation

Field Summary

static JdbcDialectFactory

FACTORY

Fields inherited from class mondrian.spi.impl.JdbcDialectImpl

databaseProduct, permitsSelectNotInGroupBy, productVersion

Constructor Summary

FirebirdDialect(java.sql.Connection connection)
Creates a FirebirdDialect.

Method Summary

boolean	allowsAs() Returns whether the SQL dialect allows "AS" in the FROM clause.
boolean	supportsOrderByNullsLast() Returns whether this dialect supports "ASC NULLS LAST" and "DESC NULLS LAST" applied to an item in the ORDER BY clause.

Methods inherited from class mondrian.spi.impl.JdbcDialectImpl

allowsCompoundCountDistinct, allowsCountDistinct, allowsDdl, allowsDialectSharing, allowsFromQuery, allowsMultipleCountDistinct, allowsMultipleDistinctSqlMeasures, allowsOrderByAlias, allowsSelectNotInGroupBy, appendHintsAfterFromClause, caseWhenElse, deduceIdentifierQuoteString, deduceMaxColumnNameLength, deduceProductName, deduceProductVersion, deduceReadOnly, deduceSupportedResultSetStyles, deduceSupportsSelectNotInGroupBy, generateInline, generateInlineForAnsi, generateInlineGeneric, generateOrderItem, getDatabaseProduct, getMaxColumnNameLength, getNullCollation, getProduct, getQuoteIdentifierString, needsExponent, quote, quoteBooleanLiteral, quoteDateLiteral, quoteDateLiteral, quoteIdentifier, quoteIdentifier, quoteIdentifier, quoteIdentifier, quoteNumericLiteral, quoteStringLiteral, quoteTimeLiteral, quoteTimestampLiteral, requiresAliasForFromQuery, requiresGroupByAlias, requiresOrderByAlias, requiresUnionOrderByExprToBeInSelectClause, requiresUnionOrderByOrdinal, supportsGroupByExpressions, supportsGroupingSets, supportsMultiValueInExpr, supportsResultSetConcurrency, supportsUnlimitedValueList, toString, toUpper

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

FACTORY

public static final JdbcDialectFactory FACTORY

Constructor Detail

FirebirdDialect

public FirebirdDialect(java.sql.Connection connection)
                throws java.sql.SQLException

Creates a FirebirdDialect.

Parameters:

connection - Connection

Throws:

java.sql.SQLException

Method Detail

allowsAs

public boolean allowsAs()

Description copied from interface: Dialect

Returns whether the SQL dialect allows "AS" in the FROM clause. If so, "SELECT * FROM t AS alias" is a valid query.

Specified by:

allowsAs in interface Dialect

Overrides:

allowsAs in class JdbcDialectImpl

Returns:

whether dialect allows AS in FROM clause

supportsOrderByNullsLast

public boolean supportsOrderByNullsLast()

Description copied from class: JdbcDialectImpl

Returns whether this dialect supports "ASC NULLS LAST" and "DESC NULLS LAST" applied to an item in the ORDER BY clause.

This feature is in standard SQL but is not supported by many databases, therefore the default implementation returns false.

This method is only called from JdbcDialectImpl.generateOrderItem(String, boolean, boolean). Some dialects override that method and therefore never call this method.

Overrides:

supportsOrderByNullsLast in class JdbcDialectImpl

Returns:

Whether this dialect supports "ORDER BY ... NULLS LAST".