Package com.exasol.adapter

Class RequestDispatcher

java.lang.Object

com.exasol.adapter.RequestDispatcher

public final class RequestDispatcher
extends Object

This class is the main entry point for calls to a Virtual Schema. From here the adapter calls are dispatched to the responsible adapter.

Constructor Summary

Constructors

Constructor	Description
RequestDispatcher()

Method Summary

Modifier and Type	Method	Description
static String	adapterCall(com.exasol.ExaMetadata metadata, String rawRequest)	Main entry point for all Virtual Schema Adapter requests issued by the Exasol database.
static RequestDispatcher	getInstance()	Get the singleton instance of the RequestDispatcher

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestDispatcher

public RequestDispatcher()

Method Detail

getInstance

public static RequestDispatcher getInstance()

Get the singleton instance of the RequestDispatcher

Returns:

singleton instance

adapterCall

public static String adapterCall(com.exasol.ExaMetadata metadata,
                                 String rawRequest)
                          throws AdapterException

Main entry point for all Virtual Schema Adapter requests issued by the Exasol database.

Parameters:

metadata - metadata for the context in which the adapter exists (e.g. the schema into which it is installed)

rawRequest - request issued in the call to the Virtual Schema Adapter

Returns:

response resulting from the adapter call

Throws:

AdapterException - in case the request type is not recognized