com.whitestein.lsps.engine

Class TimerEventInterpreter

java.lang.Object

com.whitestein.lsps.engine.TimerEventInterpreter

All Implemented Interfaces:

ProcessInterpreter

Direct Known Subclasses:

TimerIntermediateInterpreter, TimerStartInterpreter

public abstract class TimerEventInterpreter
extends Object

Interpreter of time event.

Author:

bhl

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	CONDITIONAL_EVENT__CONDITION
protected RuntimeToPersistentConverter	converter Runtime-to-persistent converter.
protected E	desc Process description.
protected static String	ERROR_EVENT__ERROR_CODE
protected static String	ERROR_EVENT__ERROR_CODE_REF
protected ExecutionContext	executionContext Execution context.
protected VariableInitializator	initializator Variable initializator.
protected ModelInstance	modelInstance Model instance.
protected ModelProvider	modelProvider Model provider service.
protected ModuleInstance	moduleInstance Module instance.
protected ProcessInterpreterContext	pic Process interpreter context.
protected ProcessInstance	processInstance Process instance.
protected static String	TIMER_EVENT__DATE
protected static String	TIMER_EVENT__DURATION

Constructor Summary

Constructors

Constructor and Description
TimerEventInterpreter(ProcessInstance processInstance, ModuleInstance moduleInstance, ProcessInterpreterContext pic, com.whitestein.lsps.model.BPMNProcessDescription desc, com.whitestein.lsps.model.TimerInEvent event) Creates new instance.

Method Summary

Modifier and Type	Method and Description
static Date	computeNextDate(Date date, Date currentDate, RecordHolder duration) Returns next date when the time event should occur.
protected abstract void	execute() Executes this interpreter action.
protected com.whitestein.lsps.model.TimerInEvent	getEvent() Returns the event of this interpreter.
protected com.whitestein.lsps.model.TimePoint	getTimeout() Time point of the event.
protected Date	getVar()
protected abstract Context	getVariableContext() Returns the context of this interpreter.
protected boolean	handleEscalationEventFlow(com.whitestein.lsps.model.ExecutableModelElement element, com.whitestein.lsps.model.EscalationEventFlow flow, ExecutionContext executionContext, Escalation escalation, boolean consumeEscalation)
void	init(boolean isStartedByInlinedEvent, Exception startedByException) Initializes the context state, sets all context variables to their initial values and creates a new token at the start of the process.
void	proceed(ProcessingType processingType) Moves the process state by one step forward.
protected void	setVar(Date date)
void	terminate(TerminationReason reason) Terminates the process with the given reason.
protected QID	varName() Returns name of an auxiliary date variable.

Methods inherited from class java.lang.Object

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

Field Detail

TIMER_EVENT__DATE

protected static final String TIMER_EVENT__DATE

TIMER_EVENT__DURATION

protected static final String TIMER_EVENT__DURATION

CONDITIONAL_EVENT__CONDITION

protected static final String CONDITIONAL_EVENT__CONDITION

ERROR_EVENT__ERROR_CODE

protected static final String ERROR_EVENT__ERROR_CODE

ERROR_EVENT__ERROR_CODE_REF

protected static final String ERROR_EVENT__ERROR_CODE_REF

processInstance

protected final ProcessInstance processInstance

Process instance.

moduleInstance

protected final ModuleInstance moduleInstance

Module instance.

modelInstance

protected final ModelInstance modelInstance

Model instance.

pic

protected final ProcessInterpreterContext pic

Process interpreter context.

modelProvider

protected final ModelProvider modelProvider

Model provider service.

desc

protected final E desc

Process description.

executionContext

protected final ExecutionContext executionContext

Execution context.

converter

protected final RuntimeToPersistentConverter converter

Runtime-to-persistent converter.

initializator

protected final VariableInitializator initializator

Variable initializator.

Constructor Detail

TimerEventInterpreter

public TimerEventInterpreter(ProcessInstance processInstance,
                             ModuleInstance moduleInstance,
                             ProcessInterpreterContext pic,
                             com.whitestein.lsps.model.BPMNProcessDescription desc,
                             com.whitestein.lsps.model.TimerInEvent event)

Creates new instance.

Parameters:

processInstance -

moduleInstance -

pic -

desc -

event -

Method Detail

init

public void init(boolean isStartedByInlinedEvent,
                 Exception startedByException)
          throws ErrorException

Initializes the context state, sets all context variables to their initial values and creates a new token at the start of the process.

Specified by:

init in interface ProcessInterpreter

Throws:

ErrorException

proceed

public void proceed(ProcessingType processingType)
             throws ErrorException

Description copied from interface: ProcessInterpreter

Moves the process state by one step forward.

Throws:

ErrorException - when a BPMN error occurs

varName

protected QID varName()

Returns name of an auxiliary date variable.

Returns:

name of an auxiliary date variable

getTimeout

protected com.whitestein.lsps.model.TimePoint getTimeout()

Time point of the event.

Returns:

time point of the event

getEvent

protected com.whitestein.lsps.model.TimerInEvent getEvent()

Returns the event of this interpreter.

Returns:

the event of this interpreter

getVar

protected Date getVar()

setVar

protected void setVar(Date date)

computeNextDate

public static Date computeNextDate(Date date,
                                   Date currentDate,
                                   RecordHolder duration)

Returns next date when the time event should occur.

Parameters:

date -

currentDate -

duration -

Returns:

next date when the time event should occur

terminate

public void terminate(TerminationReason reason)

Description copied from interface: ProcessInterpreter

Terminates the process with the given reason.

Specified by:

terminate in interface ProcessInterpreter

getVariableContext

protected abstract Context getVariableContext()

Returns the context of this interpreter.

Returns:

the context if this interpreter

execute

protected abstract void execute()
                         throws ErrorException

Executes this interpreter action.

Throws:

ErrorException

handleEscalationEventFlow

protected boolean handleEscalationEventFlow(com.whitestein.lsps.model.ExecutableModelElement element,
                                            com.whitestein.lsps.model.EscalationEventFlow flow,
                                            ExecutionContext executionContext,
                                            Escalation escalation,
                                            boolean consumeEscalation)
                                     throws ErrorException

Throws:

ErrorException