Package com.exasol.adapter

Class AdapterCallExecutor

java.lang.Object

com.exasol.adapter.AdapterCallExecutor

public class AdapterCallExecutor
extends Object

Executor for adapter calls issued by the Exasol database.

Constructor Summary

Constructors

Constructor	Description
AdapterCallExecutor(VirtualSchemaAdapter adapter)	Construct a new AdapterCallExecutor.

Method Summary

Modifier and Type	Method	Description
protected String	executeAdapterCall(AdapterRequest request, com.exasol.ExaMetadata metadata)	Execute an adapter call.
String	executeCreateVirtualSchemaRequest(CreateVirtualSchemaRequest request, com.exasol.ExaMetadata metadata)	Execute a create virtual schema request.
String	executeDropVirtualSchemaRequest(DropVirtualSchemaRequest request, com.exasol.ExaMetadata metadata)	Execute a drop virtual schema request.
String	executeGetCapabilitiesRequest(GetCapabilitiesRequest request, com.exasol.ExaMetadata metadata)	Execute a get capabilities virtual schema request.
String	executePushDownRequest(PushDownRequest request, com.exasol.ExaMetadata metadata)	Execute a push down virtual schema request.
String	executeRefreshRequest(RefreshRequest request, com.exasol.ExaMetadata metadata)	Execute a refresh virtual schema request.
String	executeSetPropertiesRequest(SetPropertiesRequest request, com.exasol.ExaMetadata metadata)	Execute a set properties virtual schema request.

Methods inherited from class java.lang.Object

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

Constructor Detail

AdapterCallExecutor

public AdapterCallExecutor(VirtualSchemaAdapter adapter)

Construct a new AdapterCallExecutor.

Parameters:

adapter - an instance of VirtualSchemaAdapter

Method Detail

executeAdapterCall

protected String executeAdapterCall(AdapterRequest request,
                                    com.exasol.ExaMetadata metadata)
                             throws AdapterException

Execute an adapter call.

Parameters:

request - request coming from the core database.

metadata - metadata

Returns:

response in a JSON format

Throws:

AdapterException - if something goes wrong

executeCreateVirtualSchemaRequest

public String executeCreateVirtualSchemaRequest(CreateVirtualSchemaRequest request,
                                                com.exasol.ExaMetadata metadata)
                                         throws AdapterException

Execute a create virtual schema request.

Parameters:

request - instance of CreateVirtualSchemaRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs

executeDropVirtualSchemaRequest

public String executeDropVirtualSchemaRequest(DropVirtualSchemaRequest request,
                                              com.exasol.ExaMetadata metadata)
                                       throws AdapterException

Execute a drop virtual schema request.

Parameters:

request - instance of DropVirtualSchemaRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs

executeRefreshRequest

public String executeRefreshRequest(RefreshRequest request,
                                    com.exasol.ExaMetadata metadata)
                             throws AdapterException

Execute a refresh virtual schema request.

Parameters:

request - instance of RefreshRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs

executeSetPropertiesRequest

public String executeSetPropertiesRequest(SetPropertiesRequest request,
                                          com.exasol.ExaMetadata metadata)
                                   throws AdapterException

Execute a set properties virtual schema request.

Parameters:

request - instance of SetPropertiesRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs

executeGetCapabilitiesRequest

public String executeGetCapabilitiesRequest(GetCapabilitiesRequest request,
                                            com.exasol.ExaMetadata metadata)
                                     throws AdapterException

Execute a get capabilities virtual schema request.

Parameters:

request - instance of GetCapabilitiesRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs

executePushDownRequest

public String executePushDownRequest(PushDownRequest request,
                                     com.exasol.ExaMetadata metadata)
                              throws AdapterException

Execute a push down virtual schema request.

Parameters:

request - instance of PushDownRequest

metadata - metadata for the context in which the adapter exists

Returns:

response in a JSON format

Throws:

AdapterException - if some problem occurs