com.espertech.esper.core.service

Class InsertIntoLatchWait

java.lang.Object

com.espertech.esper.core.service.InsertIntoLatchWait

public class InsertIntoLatchWait
extends Object

A suspend-and-notify implementation of a latch for use in guaranteeing delivery between a single event produced by a single statement and consumable by another statement.

Constructor Summary

Constructors

Constructor and Description
InsertIntoLatchWait(InsertIntoLatchFactory factory) Ctor - use for the first and unused latch to indicate completion.
InsertIntoLatchWait(InsertIntoLatchWait earlier, long msecTimeout, EventBean payload) Ctor.

Method Summary

Modifier and Type	Method and Description
EventBean	await() Blcking call that returns only when the earlier latch completed.
void	done() Called to indicate that the latch completed and a later latch can start.
boolean	isCompleted() Returns true if the dispatch completed for this future.
void	setLater(InsertIntoLatchWait later) Hand a later latch to use for indicating completion via notify.

Methods inherited from class java.lang.Object

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

Constructor Detail

InsertIntoLatchWait

public InsertIntoLatchWait(InsertIntoLatchWait earlier,
                           long msecTimeout,
                           EventBean payload)

Ctor.

Parameters:

earlier - the latch before this latch that this latch should be waiting for

msecTimeout - the timeout after which delivery occurs

payload - the payload is an event to deliver

InsertIntoLatchWait

public InsertIntoLatchWait(InsertIntoLatchFactory factory)

Ctor - use for the first and unused latch to indicate completion.

Parameters:

factory - the latch factory

Method Detail

isCompleted

public boolean isCompleted()

Returns true if the dispatch completed for this future.

Returns:

true for completed, false if not

setLater

public void setLater(InsertIntoLatchWait later)

Hand a later latch to use for indicating completion via notify.

Parameters:

later - is the later latch

await

public EventBean await()

Blcking call that returns only when the earlier latch completed.

Returns:

payload of the latch

done

public void done()

Called to indicate that the latch completed and a later latch can start.