com.espertech.esper.common.client.fireandforget

Interface EPFireAndForgetPreparedQuery

public interface EPFireAndForgetPreparedQuery

Interface for a prepared on-demand query that can be executed multiple times.

Method Summary

Modifier and Type	Method and Description
void	close() Releases resources.
EPFireAndForgetQueryResult	execute() Execute the prepared query returning query results.
EPFireAndForgetQueryResult	execute(ContextPartitionSelector[] contextPartitionSelectors) For use with named windows that have a context declared and that may therefore have multiple context partitions, allows to target context partitions for query execution selectively.
EventType	getEventType() Returns the event type, representing the columns of the select-clause.

Method Detail

execute

EPFireAndForgetQueryResult execute()

Execute the prepared query returning query results.

Returns:

query result

execute

EPFireAndForgetQueryResult execute(ContextPartitionSelector[] contextPartitionSelectors)

For use with named windows that have a context declared and that may therefore have multiple context partitions, allows to target context partitions for query execution selectively.

Parameters:

contextPartitionSelectors - selects context partitions to consider

Returns:

query result

getEventType

EventType getEventType()

Returns the event type, representing the columns of the select-clause.

Returns:

event type

close

void close()

Releases resources.

Required for use with fire-and-forget queries that use SQL queries i.e. "from SQL:db [query]". Optional for all other EPL queries.