org.epics.pvmanager.timecache.query

Interface Query

All Known Implementing Classes:

QueryImpl

public interface Query

Author:

Fred Arnaud (Sopra Group) - ITER

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Query can be disposed.
QueryResult	getResult() This method returns all data available for the specified TimeInterval.
QueryResult	getUpdate() This method can be polled at regular interval and should return right away with the data is already available, even if incomplete.
void	update(QueryParameters queryParameters) Changes the parameters for the query.

Method Detail

update

void update(QueryParameters queryParameters)

Changes the parameters for the query. This method is thread safe and returns immediately. It may schedule asynchronous execution of service calls to fetch the data.

Parameters:

queryParameters -

getResult

QueryResult getResult()

This method returns all data available for the specified TimeInterval.

getUpdate

QueryResult getUpdate()

This method can be polled at regular interval and should return right away with the data is already available, even if incomplete.

close

void close()

Query can be disposed. Future calls to getResult() and getUpdate() will result in IllegalStateException.