Package mondrian.spi.impl

Class NuoDbDialect

java.lang.Object

mondrian.spi.impl.JdbcDialectImpl

mondrian.spi.impl.NuoDbDialect

All Implemented Interfaces:

Dialect

public class NuoDbDialect
extends JdbcDialectImpl

Implementation of Dialect for the NuoDB database. In order to use NuoDB with Hitachi Vantara Mondrian users can only use NuoDB version 2.0.4 or newer.

Since:

Mar 20, 2014

Author:

rbuck

Nested Class Summary

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

Dialect.DatabaseProduct, Dialect.Datatype

Field Summary

Fields

Modifier and Type	Field	Description
static final JdbcDialectFactory	FACTORY

Fields inherited from class mondrian.spi.impl.JdbcDialectImpl

databaseProduct, permitsSelectNotInGroupBy, productVersion

Constructor Summary

Constructors

Constructor	Description
NuoDbDialect(Connection connection)	Creates a NuoDbDialect.

Method Summary

Modifier and Type	Method	Description
protected String	deduceIdentifierQuoteString(DatabaseMetaData databaseMetaData)	The NuoDB JDBC driver lists " " as the string to use for quoting, but we know better.
String	generateInline(List<String> columnNames, List<String> columnTypes, List<String[]> valueList)	In order to generate a SQL statement to represent an inline dataset NuoDB requires that you use FROM DUAL.
protected void	quoteDateLiteral(StringBuilder buf, String value, Date date)	NuoDB does not yet support ANSI SQL:2003 for DATE literals so we have to cast dates using a function.

Methods inherited from class mondrian.spi.impl.JdbcDialectImpl

allowsAs, allowsCompoundCountDistinct, allowsCountDistinct, allowsCountDistinctWithOtherAggs, allowsDdl, allowsDialectSharing, allowsFromQuery, allowsJoinOn, allowsMultipleCountDistinct, allowsMultipleDistinctSqlMeasures, allowsOrderByAlias, allowsRegularExpressionInWhereClause, allowsSelectNotInGroupBy, appendHintsAfterFromClause, caseWhenElse, computeStatisticsProviders, deduceMaxColumnNameLength, deduceProductName, deduceProductVersion, deduceReadOnly, deduceSupportedResultSetStyles, deduceSupportsSelectNotInGroupBy, extractEmbeddedFlags, generateCountExpression, generateInlineForAnsi, generateInlineGeneric, generateOrderByNulls, generateOrderByNullsAnsi, generateOrderItem, generateRegularExpression, getDatabaseProduct, getMaxColumnNameLength, getProduct, getQuoteIdentifierString, getStatisticsProviders, getType, isDatabase, needsExponent, quote, quoteBooleanLiteral, quoteDateLiteral, quoteIdentifier, quoteIdentifier, quoteIdentifier, quoteIdentifier, quoteNumericLiteral, quoteStringLiteral, quoteTimeLiteral, quoteTimestampLiteral, quoteTimestampLiteral, requiresAliasForFromQuery, requiresGroupByAlias, requiresHavingAlias, 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 Details

FACTORY

public static final JdbcDialectFactory FACTORY

Constructor Details

NuoDbDialect

public NuoDbDialect(Connection connection)
             throws SQLException

Creates a NuoDbDialect.

Parameters:

connection - Connection

Throws:

SQLException

Method Details

generateInline

public String generateInline(List<String> columnNames,
 List<String> columnTypes,
 List<String[]> valueList)

In order to generate a SQL statement to represent an inline dataset NuoDB requires that you use FROM DUAL.

Specified by:

generateInline in interface Dialect

Overrides:

generateInline in class JdbcDialectImpl

Parameters:

columnNames - the list of column names

columnTypes - the list of column types

valueList - the value list

Returns:

the generated SQL statement for an inline dataset

quoteDateLiteral

protected void quoteDateLiteral(StringBuilder buf,
 String value,
 Date date)

NuoDB does not yet support ANSI SQL:2003 for DATE literals so we have to cast dates using a function.

Overrides:

quoteDateLiteral in class JdbcDialectImpl

Parameters:

buf - Buffer to append to

value - Value as string

date - Value as date

deduceIdentifierQuoteString

protected String deduceIdentifierQuoteString(DatabaseMetaData databaseMetaData)

The NuoDB JDBC driver lists " " as the string to use for quoting, but we know better. Ideally the quotation character ought to have been "`" but if that is used and a generated query uses non quoted object names, not- found exceptions will occur for the object. So we here fall back to using the double quote character. We ought to investigate why back-tick won't work. But for now this makes all the tests work with Nuo (besides the tweaks above).

Overrides:

deduceIdentifierQuoteString in class JdbcDialectImpl

Parameters:

databaseMetaData - the database metadata from the connection

Returns:

the quotation character