org.apache.calcite.sql

Class SqlDialectFactoryImpl

java.lang.Object

org.apache.calcite.sql.SqlDialectFactoryImpl

All Implemented Interfaces:

SqlDialectFactory

public class SqlDialectFactoryImpl
extends Object
implements SqlDialectFactory

The default implementation of a SqlDialectFactory.

Field Summary

Fields

Modifier and Type	Field and Description
static SqlDialectFactoryImpl	INSTANCE
private JethroDataSqlDialect.JethroInfoCache	jethroCache
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
SqlDialectFactoryImpl()

Method Summary

Modifier and Type	Method and Description
SqlDialect	create(DatabaseMetaData databaseMetaData) Creates a SqlDialect from a DatabaseMetaData.
private String	getIdentifierQuoteString(DatabaseMetaData databaseMetaData)
private NullCollation	getNullCollation(DatabaseMetaData databaseMetaData)
(package private) static SqlDialect	simple(SqlDialect.DatabaseProduct databaseProduct) Returns a basic dialect for a given product, or null if none is known.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

INSTANCE

public static final SqlDialectFactoryImpl INSTANCE

jethroCache

private final JethroDataSqlDialect.JethroInfoCache jethroCache

Constructor Detail

SqlDialectFactoryImpl

public SqlDialectFactoryImpl()

Method Detail

create

public SqlDialect create(DatabaseMetaData databaseMetaData)

Description copied from interface: SqlDialectFactory

Creates a SqlDialect from a DatabaseMetaData.

Does not maintain a reference to the DatabaseMetaData -- or, more importantly, to its Connection -- after this call has returned.

Specified by:

create in interface SqlDialectFactory

Parameters:

databaseMetaData - used to determine which dialect of SQL to generate

getNullCollation

private NullCollation getNullCollation(DatabaseMetaData databaseMetaData)

getIdentifierQuoteString

private String getIdentifierQuoteString(DatabaseMetaData databaseMetaData)

simple

static SqlDialect simple(SqlDialect.DatabaseProduct databaseProduct)

Returns a basic dialect for a given product, or null if none is known.