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com.newstep.solid.processor

Class SequentialEventHandler

com.newstep.solid.processor.EventHandler

+--com.newstep.solid.processor.SequentialEventHandler

Direct Known Subclasses:
TestEventSequentialHandler, ThreePassProcessorTestCase.BrokenSequentialHandler

public abstract class SequentialEventHandler

Provides the basis for implementing buisness logic when multiple events need
to be processed in order one at a time.

Abstract.

Links:

Kernel Association Association Link

to Class Event

the Event that will be handled

Associates type:

aggregation

Client cardinality:

0..*

Client navigability:

NOT NAVIGABLE

Client visibility:

private

Directed.

Supplier cardinality:

Supplier navigability:

NAVIGABLE

Supplier visibility:

private

Custom properties

link:

aggregation

Generalization Generalization Link

to Class EventHandler

Provides the basis for implementing buisness logic when multiple events need
to be processed in order one at a time.

Field Summary
private Event	currentEvent
private int	outstandingEvents

Constructor Summary
public void	SequentialEventHandler()

Method Summary
public void	doHandle()
private boolean	postHandle()
private boolean	preHandle()

Field Detail

currentEvent

private Event currentEvent

the Event that will be handled

Multiplicity:

outstandingEvents

private int outstandingEvents

Counter of outstanding evens (i.e. those that should have been handled
already but are still waiting for a previous one to finish).

Multiplicity:

Constructor Detail

SequentialEventHandler

public void SequentialEventHandler ()

default constructor

Stereotype:

create

Method Detail

doHandle

public void doHandle ()

Throws:

EventHandlerException

postHandle

private boolean postHandle ()

Determines if the event at the begining of the buffer can be handled

Return:

true if there's an event ready to be handled.

preHandle

private boolean preHandle ()