org.apache.spark.sql.jdbc

Class JdbcDialects

java.lang.Object

org.apache.spark.sql.jdbc.JdbcDialects

public class JdbcDialects
extends java.lang.Object

:: DeveloperApi :: Registry of dialects that apply to every new jdbc DataFrame.

If multiple matching dialects are registered then all matching ones will be tried in reverse order. A user-added dialect will thus be applied first, overwriting the defaults.

Note that all new dialects are applied to new jdbc DataFrames only. Make sure to register your dialects first.

Constructor Summary

Constructors

Constructor and Description
JdbcDialects()

Method Summary

Methods

Modifier and Type	Method and Description
static void	registerDialect(JdbcDialect dialect) Register a dialect for use on all new matching jdbc DataFrame.
static void	unregisterDialect(JdbcDialect dialect) Unregister a dialect.

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcDialects

public JdbcDialects()

Method Detail

registerDialect

public static void registerDialect(JdbcDialect dialect)

Register a dialect for use on all new matching jdbc DataFrame. Readding an existing dialect will cause a move-to-front.

Parameters:

dialect - The new dialect.

unregisterDialect

public static void unregisterDialect(JdbcDialect dialect)

Unregister a dialect. Does nothing if the dialect is not registered.

Parameters:

dialect - The jdbc dialect.