Package io.deephaven.query.parameterized.impl

Interface SessionFetcher

public interface SessionFetcher

An interface that allows redirection of the various PersistentQuery methods. This simplifies unit testing.

Field Summary

Fields

Modifier and Type	Field	Description
static final SessionFetcher	DEFAULT	The default fetcher delegates to PersistentQuery and QueryScope

Method Summary

Modifier and Type	Method	Description
int	addSession(ScriptSession newSession, ExportedObjectClient client)	Add a session for the specified client.
QueryScope	getQueryScope(int sessionId)	Get the QueryScope for the specified session id
ScriptSession	getScriptSession(int sessionKey)	Get the ScriptSession for the given session key

Field Details

DEFAULT

static final SessionFetcher DEFAULT

The default fetcher delegates to PersistentQuery and QueryScope

Method Details

getScriptSession

@Nullable
ScriptSession getScriptSession(int sessionKey)
                        throws PersistentQuery.UnknownSessionException

Get the ScriptSession for the given session key

Parameters:

sessionKey - the session key

Returns:

the ScriptSession for the key

Throws:

PersistentQuery.UnknownSessionException - if the session can not be found

addSession

int addSession(@NotNull
 ScriptSession newSession,
 @NotNull
 ExportedObjectClient client)

Add a session for the specified client.

Parameters:

newSession - the session to add

client - the client to associate with

Returns:

the unique ID of the session

getQueryScope

@NotNull
QueryScope getQueryScope(int sessionId)
                  throws PersistentQuery.UnknownSessionException

Get the QueryScope for the specified session id

Parameters:

sessionId - the session id

Returns:

the queryScope

Throws:

PersistentQuery.UnknownSessionException - if the session could not be found