Package com.exasol.adapter.dialects.rewriting

Class ImportFromJDBCQueryRewriter

java.lang.Object

com.exasol.adapter.dialects.rewriting.AbstractQueryRewriter

com.exasol.adapter.dialects.rewriting.ImportFromJDBCQueryRewriter

All Implemented Interfaces:

QueryRewriter

public class ImportFromJDBCQueryRewriter
extends AbstractQueryRewriter

Implementation of AbstractQueryRewriter to generate IMPORT FROM JDBC queries.

See Also:

https://docs.exasol.com/sql/import.htm

Field Summary

Fields inherited from class com.exasol.adapter.dialects.rewriting.AbstractQueryRewriter

connectionDefinitionBuilder, dialect, remoteMetadataReader

Constructor Summary

Constructors

Constructor	Description
ImportFromJDBCQueryRewriter(SqlDialect dialect, RemoteMetadataReader remoteMetadataReader)	Construct a new instance of ImportFromJDBCQueryRewriter.
ImportFromJDBCQueryRewriter(SqlDialect dialect, RemoteMetadataReader remoteMetadataReader, ConnectionDefinitionBuilder connectionDefinitionBuilder)	Construct a new instance of ImportFromJDBCQueryRewriter.

Method Summary

Modifier and Type	Method	Description
protected String	generateImportStatement(String connectionDefinition, String pushdownQuery)	Generate an IMPORT statement to be executed in the Exasol database, using the passed pushdown query to be executed in the external source be as source data.

Methods inherited from class com.exasol.adapter.dialects.rewriting.AbstractQueryRewriter

generateImportStatement, getConnectionInformation, rewrite

Methods inherited from class java.lang.Object

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

Constructor Detail

ImportFromJDBCQueryRewriter

public ImportFromJDBCQueryRewriter(SqlDialect dialect,
                                   RemoteMetadataReader remoteMetadataReader)

Construct a new instance of ImportFromJDBCQueryRewriter.

Parameters:

dialect - dialect

remoteMetadataReader - remote metadata reader

ImportFromJDBCQueryRewriter

public ImportFromJDBCQueryRewriter(SqlDialect dialect,
                                   RemoteMetadataReader remoteMetadataReader,
                                   ConnectionDefinitionBuilder connectionDefinitionBuilder)

Construct a new instance of ImportFromJDBCQueryRewriter.

Parameters:

dialect - dialect

remoteMetadataReader - remote metadata reader

connectionDefinitionBuilder - custom connection definition builder

Method Detail

generateImportStatement

protected String generateImportStatement(String connectionDefinition,
                                         String pushdownQuery)
                                  throws SQLException

Description copied from class: AbstractQueryRewriter

Generate an IMPORT statement to be executed in the Exasol database, using the passed pushdown query to be executed in the external source be as source data.

Specified by:

generateImportStatement in class AbstractQueryRewriter

Parameters:

connectionDefinition - connection definition to be used when connecting to the external source

pushdownQuery - source data for the `IMPORT...FROM` statement

Returns:

IMPORT statement to be executed on the Exasol database

Throws:

SQLException - if any problem occurs