Package com.exasol.adapter.request

Class PushDownRequest

java.lang.Object

com.exasol.adapter.request.AbstractAdapterRequest

com.exasol.adapter.request.PushDownRequest

All Implemented Interfaces:

AdapterRequest

public class PushDownRequest
extends AbstractAdapterRequest

This class represents a request that tells a Virtual Schema Adapter to push a SQL statement down to the external data source

Constructor Summary

Constructors

Constructor	Description
PushDownRequest(String adapterName, SchemaMetadataInfo schemaMetadataInfo, SqlStatement select, List<TableMetadata> involvedTablesMetadata)	Create a new request of type PushDownRequest

Method Summary

Modifier and Type	Method	Description
List<TableMetadata>	getInvolvedTablesMetadata()	Get the metadata for the tables involved in the pushdown operation
SqlStatement	getSelect()	Get the SELECT statement that should be pushed down to the external data source

Methods inherited from class com.exasol.adapter.request.AbstractAdapterRequest

getAdapterName, getSchemaMetadataInfo, getType, getVirtualSchemaName

Methods inherited from class java.lang.Object

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

Constructor Detail

PushDownRequest

public PushDownRequest(String adapterName,
                       SchemaMetadataInfo schemaMetadataInfo,
                       SqlStatement select,
                       List<TableMetadata> involvedTablesMetadata)

Create a new request of type PushDownRequest

Parameters:

adapterName - name of the adapter that should handle the request

schemaMetadataInfo - schema metadata

select - SQL statement to be pushed down to the external data source

involvedTablesMetadata - tables involved in the push-down request

Method Detail

getSelect

public SqlStatement getSelect()

Get the SELECT statement that should be pushed down to the external data source

Returns:

SELECT statement

getInvolvedTablesMetadata

public List<TableMetadata> getInvolvedTablesMetadata()

Get the metadata for the tables involved in the pushdown operation

Returns:

metadata of involved tables