desmoj.extensions.applicationDomains.production

Class RestockProcessQS

java.lang.Object

desmoj.core.simulator.NamedObject

desmoj.core.simulator.ModelComponent

desmoj.core.simulator.Schedulable

desmoj.core.simulator.Entity

desmoj.core.simulator.SimProcess

desmoj.extensions.applicationDomains.production.RestockProcessQS

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener

public class RestockProcessQS
extends SimProcess
implements java.beans.PropertyChangeListener

RestockProcessQS is a process restocking a Stock with a fixed given quantity (Q) every time a given safety (S) stock level is reached.

Version:

DESMO-J, Ver. 2.5.1c copyright (c) 2015

Author:

Soenke Claassen Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Constructor Summary

Constructors

Constructor and Description
RestockProcessQS(Model owner, java.lang.String name, long q, long safetyStk, Stock client, boolean showInTrace) Constructs a RestockProcessQS which restocks a client Stock with a fixed quantity every time the safety stock is reached.
RestockProcessQS(Model owner, java.lang.String name, long q, long safetyStk, Stock client, NumericalDist<?> lt, boolean showInTrace) Constructs a RestockProcessQS which restocks a client Stock after a fixed time period up to a maximum inventory level.

Method Summary

Modifier and Type	Method and Description
NumericalDist<?>	getLeadTime() Returns the random number distribution for the lead time (time between placement and receipt of an order).
long	getOrderQuantity() Returns the quantity (number of units) to be stored in the Stock.
long	getSafetyStockLevel() Returns the safety stock level.
void	lifeCycle() The RestockProcessQS replenishes the associated Stock with the given quantity of units (Q) every time the inventory level dropped below the safety (S) stock level.
void	propertyChange(java.beans.PropertyChangeEvent evt) Informs the RestockProcessQS every time the inventory level of the Stock changes.
void	setLeadTime(NumericalDist<?> newLeadTime) Set the lead time to a new real random number distribution.
void	setOrderQuantity(long newOrderQuantity) Sets the order quantity to a new value.
void	setSafetyStockLevel(long newSafetyStk) Sets the safety stock level to a new value.

Methods inherited from class desmoj.core.simulator.SimProcess

activate, activate, activate, activateAfter, activateBefore, activatePreempt, cancelInterruptDelayed, canCooperate, clearInterruptCode, cooperate, getActivatedBy, getInterruptCode, getInterruptException, getMaster, getRealTimeConstraint, getSchedulingPriority, getSlaveWaitQueue, getSupervisor, hold, hold, hold, interrupt, interrupt, interruptDelayed, interruptDelayed, isBlocked, isComponent, isDelayedInterruptScheduled, isInterrupted, isRepeating, isTerminated, obtainResources, passivate, prepareTransport, reActivate, reActivate, resetMaster, returnAllResources, returnResources, setBlocked, setRealTimeConstraint, setRepeating, setSchedulingPriority, setSlaveWaitQueue

Methods inherited from class desmoj.core.simulator.Entity

getIdentNumber, getQueueingPriority, getQueues, getScheduledEvents, isEqual, isLarger, isLargerOrEqual, isNotEqual, isQueued, isSimProcess, isSmaller, isSmallerOrEqual, schedule, schedule, schedule, schedule, schedule, schedule, schedule, schedule, schedule, scheduleAfter, scheduleAfter, scheduleAfter, scheduleBefore, scheduleBefore, scheduleBefore, schedulePreempt, schedulePreempt, schedulePreempt, setQueueingPriority

Methods inherited from class desmoj.core.simulator.Schedulable

assignReporter, cancel, getCorrespondingReportable, isCurrent, isScheduled, rename, reSchedule, reSchedule, reSchedulePreempt, scheduledNext, setCorrespondingReportable

Methods inherited from class desmoj.core.simulator.ModelComponent

current, currentEntity, currentEntityAll, currentEvent, currentModel, currentSimProcess, debugIsOn, debugOff, debugOn, getModel, isExperimentCompatible, isModelCompatible, presentTime, sendDebugNote, sendMessage, sendTraceNote, sendWarning, skipTraceNote, skipTraceNote, traceIsOn, traceOff, traceOn

Methods inherited from class desmoj.core.simulator.NamedObject

getName, getQuotedName, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

RestockProcessQS

public RestockProcessQS(Model owner,
                        java.lang.String name,
                        long q,
                        long safetyStk,
                        Stock client,
                        NumericalDist<?> lt,
                        boolean showInTrace)

Constructs a RestockProcessQS which restocks a client Stock after a fixed time period up to a maximum inventory level. The lead time (time gap between placement and receipt of an order) will be given as a real random number distribution.

Parameters:

owner - Model : The model this RestockProcessQS is associated to

name - java.lang.String : The name of the RestockProcessQS

q - long : The quantity supplied to the Stock with every order.

safetyStk - long : The safety stock. When this inventory level is reached an order will be placed

client - Stock : The Stock which will replenished.

lt - NumericalDist : The lead time random number distribution to determine the time between placement and receipt of an order. If null the lead time is zero.

showInTrace - boolean : Flag for showing the RestockProcessQS in trace-files. Set it to true if RestockProcessQS should show up in trace. Set it to false if RestockProcessQS should not be shown in trace.

RestockProcessQS

public RestockProcessQS(Model owner,
                        java.lang.String name,
                        long q,
                        long safetyStk,
                        Stock client,
                        boolean showInTrace)

Constructs a RestockProcessQS which restocks a client Stock with a fixed quantity every time the safety stock is reached. The lead time is zero.

Parameters:

owner - Model : The model this RestockProcessQS is associated to

name - java.lang.String : The name of the RestockProcessQS

q - long : The quantity supplied to the Stock with every order.

safetyStk - long : The safety stock. When this inventory level is reached an order will be placed

client - Stock : The Stock which will replenished.

showInTrace - boolean : Flag for showing the RestockProcessQS in trace-files. Set it to true if RestockProcessQS should show up in trace. Set it to false if RestockProcessQS should not be shown in trace.

Method Detail

getLeadTime

public NumericalDist<?> getLeadTime()

Returns the random number distribution for the lead time (time between placement and receipt of an order).

Returns:

NumericalDist : The random number distribution for the lead time (time between placement and receipt of an order).

getOrderQuantity

public long getOrderQuantity()

Returns the quantity (number of units) to be stored in the Stock.

Returns:

long : The Stock will be replenished with this number of units.

getSafetyStockLevel

public long getSafetyStockLevel()

Returns the safety stock level. When this inventory level is reached a new order will be placed.

Returns:

long : The safety stock level. When this inventory level is reached a new order will be placed.

lifeCycle

public void lifeCycle()
               throws SuspendExecution

The RestockProcessQS replenishes the associated Stock with the given quantity of units (Q) every time the inventory level dropped below the safety (S) stock level.

Specified by:

lifeCycle in class SimProcess

Throws:

SuspendExecution

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent evt)

Informs the RestockProcessQS every time the inventory level of the Stock changes. If the inventory level of the Stock drops below the safety stock level this RestockProcessQS must be woken up to place an order.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Parameters:

evt - java.beans.PropertyChangeEvent : Informing the event about an inventory level change of the Stock.

setLeadTime

public void setLeadTime(NumericalDist<?> newLeadTime)

Set the lead time to a new real random number distribution. If set to null the lead time is zero.

Parameters:

newLeadTime - NumericalDist : The new real random number distribution determining the lead time.

setOrderQuantity

public void setOrderQuantity(long newOrderQuantity)

Sets the order quantity to a new value. Zero or negative values will be rejected.

Parameters:

newOrderQuantity - long : Choose a postitive value greater than zero as new order quantity.

setSafetyStockLevel

public void setSafetyStockLevel(long newSafetyStk)

Sets the safety stock level to a new value. Make sure it is greater than zero and less than the capacity of the Stock.

Parameters:

newSafetyStk - long : The new safety stock level. Make sure it is greater than zero and less than the capacity of the Stock.