Package io.siddhi.core.query

Class OnDemandQueryRuntime

java.lang.Object

io.siddhi.core.query.OnDemandQueryRuntime

Direct Known Subclasses:

DeleteOnDemandQueryRuntime, FindOnDemandQueryRuntime, InsertOnDemandQueryRuntime, SelectOnDemandQueryRuntime, UpdateOnDemandQueryRuntime, UpdateOrInsertOnDemandQueryRuntime

public abstract class OnDemandQueryRuntime
extends Object

On-Demand Query Runtime Interface

Constructor Summary

Constructors

Constructor	Description
OnDemandQueryRuntime()

Method Summary

Modifier and Type	Method	Description
Event[]	execute()	This method initiates the execution of on-demand Query.
io.siddhi.query.api.definition.Attribute[]	getOnDemandQueryOutputAttributes()	This method will return the output attributes name and its types.
abstract io.siddhi.core.query.OnDemandQueryRuntime.TYPE	getType()	This method will return the type of the on-demand Query runtime.
abstract void	reset()	This method is used to execute a on-demand Query when there is already on-demand Query runtime for that query.
void	setMetaStreamEvent(MetaStreamEvent metaStreamEvent)
void	setOutputAttributes(List<io.siddhi.query.api.definition.Attribute> outputAttributeList)	This method sets the output attribute list of the given on-demand Query.
void	setSelector(QuerySelector selector)	This method sets selector for the delete on-demand Query runtime.
void	setStateEventFactory(StateEventFactory stateEventFactory)	This method sets a state event pool for on-demand Query runtime.

Methods inherited from class java.lang.Object

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

Constructor Detail

OnDemandQueryRuntime

public OnDemandQueryRuntime()

Method Detail

execute

public Event[] execute()

This method initiates the execution of on-demand Query.

Returns:

an array of Events.

setStateEventFactory

public void setStateEventFactory(StateEventFactory stateEventFactory)

This method sets a state event pool for on-demand Query runtime.

Parameters:

stateEventFactory - stateEventFactory for the on-demand Query runtime

setOutputAttributes

public void setOutputAttributes(List<io.siddhi.query.api.definition.Attribute> outputAttributeList)

This method sets the output attribute list of the given on-demand Query.

Parameters:

outputAttributeList - of the on-demand Query

getOnDemandQueryOutputAttributes

public io.siddhi.query.api.definition.Attribute[] getOnDemandQueryOutputAttributes()

This method will return the output attributes name and its types.

Returns:

List of output attributes

setSelector

public void setSelector(QuerySelector selector)

This method sets selector for the delete on-demand Query runtime.

Parameters:

selector - for the on-demand Query

reset

public abstract void reset()

This method is used to execute a on-demand Query when there is already on-demand Query runtime for that query.

getType

public abstract io.siddhi.core.query.OnDemandQueryRuntime.TYPE getType()

This method will return the type of the on-demand Query runtime.

Returns:

type of on-demand Query runtime. (one of the types DELETE, INSERT, SELECT, UPDATE, FIND or UPDATE OR INSERT)

setMetaStreamEvent

public void setMetaStreamEvent(MetaStreamEvent metaStreamEvent)