com.espertech.esper.core.service
Class EPPreparedQueryImpl

java.lang.Object
  com.espertech.esper.core.service.EPPreparedQueryImpl

All Implemented Interfaces:

EPOnDemandPreparedQuery, EPOnDemandPreparedQuerySPI

public class EPPreparedQueryImpl
extends java.lang.Object
implements EPOnDemandPreparedQuerySPI

Provides prepared query functionality.

Constructor Summary

EPPreparedQueryImpl(EPPreparedExecuteMethod executeMethod, java.lang.String epl)
Ctor.

Method Summary

EPOnDemandQueryResult	execute() Execute the prepared query returning query results.
EPOnDemandQueryResult	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.
EPPreparedExecuteMethod	getExecuteMethod()

Methods inherited from class java.lang.Object

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

Constructor Detail

EPPreparedQueryImpl

public EPPreparedQueryImpl(EPPreparedExecuteMethod executeMethod,
                           java.lang.String epl)

Ctor.

Parameters:

executeMethod - used at execution time to obtain query results

epl - is the EPL to execute

Method Detail

execute

public EPOnDemandQueryResult execute()

Description copied from interface: EPOnDemandPreparedQuery

Execute the prepared query returning query results.

Specified by:

execute in interface EPOnDemandPreparedQuery

Returns:

query result

execute

public EPOnDemandQueryResult execute(ContextPartitionSelector[] contextPartitionSelectors)

Description copied from interface: EPOnDemandPreparedQuery

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.

Specified by:

execute in interface EPOnDemandPreparedQuery

Parameters:

contextPartitionSelectors - selects context partitions to consider

Returns:

query result

getExecuteMethod

public EPPreparedExecuteMethod getExecuteMethod()

Specified by:

getExecuteMethod in interface EPOnDemandPreparedQuerySPI

getEventType

public EventType getEventType()

Description copied from interface: EPOnDemandPreparedQuery

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

Specified by:

getEventType in interface EPOnDemandPreparedQuery

Returns:

event type