org.vishia.event

Interface EventThread_ifc

All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable, InfoAppend

All Known Subinterfaces:

EventTimerThread_ifc

All Known Implementing Classes:

EventTimerThread, OrderListExecuter

public interface EventThread_ifc
extends java.io.Closeable, InfoAppend

Field Summary

Fields inherited from interface org.vishia.util.InfoAppend

version

Method Summary

Modifier and Type	Method and Description
boolean	isBusy() Checks whether the thread is busy.
boolean	isCurrentThread() quest whether the current thread is equal to this thread.
boolean	removeFromQueue(java.util.EventObject ev) Removes this event from its queue if it is in the event queue.
boolean	storeEvent(java.util.EventObject ev) Adds an event to execute it in the thread of the implementor of this interface.

Methods inherited from interface java.io.Closeable

close

Methods inherited from interface org.vishia.util.InfoAppend

infoAppend

Method Detail

storeEvent

boolean storeEvent(java.util.EventObject ev)

Adds an event to execute it in the thread of the implementor of this interface. if a EventWithDst is used it has an aggregation to the implementor of this and ivokes this method in its EventWithDst#sendEvent(). In that case this method should not be called by an application directly. It is only a rule to implement. But this method should be used if another event type is used. Then the implementor should know what to do with the event.

Parameters:

ev - the Event to store

Returns:

false if the event is not stored, because for example it is already stored. true if stored.

removeFromQueue

boolean removeFromQueue(java.util.EventObject ev)

Removes this event from its queue if it is in the event queue. If the element of type EventWithDst is found in the queue, it is designated with stateOfEvent = 'a' This operation is thread safe. Either the event is found and removed, or it is not found because it is either in execution yet or it is not queued. The event queue is a ConcurrentLinkedQueue.

Parameters:

ev - The event which should be dequeued

Returns:

true if found.

isBusy

boolean isBusy()

Checks whether the thread is busy. This is used especially for debug, if a TimeOrder waits for its finishing. If an execution remains in process because debugging, this method returns true.

Returns:

isCurrentThread

boolean isCurrentThread()

quest whether the current thread is equal to this thread.

Returns:

true if it is called in the same thread as using for this.