frepple::BufferProcure Class Reference
This class models a buffer that is replenish by an external supplier using a reorder-point policy. More...
#include <model.h>
Inheritance diagram for frepple::BufferProcure:
Public Member Functions | |
| BufferProcure (const string &c) | |
| virtual void | endElement (XMLInput &, const Attribute &, const DataElement &) |
| TimePeriod | getFence () const |
| TimePeriod | getLeadtime () const |
| TimePeriod | getMaximumInterval () const |
| double | getMaximumInventory () const |
| TimePeriod | getMinimumInterval () const |
| double | getMinimumInventory () const |
| Operation * | getOperation () const |
| virtual size_t | getSize () const |
| double | getSizeMaximum () const |
| double | getSizeMinimum () const |
| double | getSizeMultiple () const |
| virtual const MetaClass & | getType () const |
| void | setFence (TimePeriod p) |
| void | setLeadtime (TimePeriod p) |
| void | setMaximumInterval (TimePeriod p) |
| void | setMaximumInventory (double f) |
| void | setMinimumInterval (TimePeriod p) |
| void | setMinimumInventory (double f) |
| void | setSizeMaximum (double f) |
| void | setSizeMinimum (double f) |
| void | setSizeMultiple (double f) |
| virtual void | solve (Solver &s, void *v=NULL) const |
| virtual void | writeElement (XMLOutput *, const Keyword &, mode=DEFAULT) const |
Static Public Attributes | |
| static const MetaClass | metadata |
Detailed Description
This class models a buffer that is replenish by an external supplier using a reorder-point policy.
It represents a material buffer where a replenishment is triggered whenever the inventory drops below the minimum level. The buffer is then replenished to the maximum inventory level.
A leadtime is taken into account for the replenishments.
The following parameters control this replenishment:
- MinimumInventory:
Inventory level triggering a new replenishment.
The actual inventory can drop below this value. - MaximumInventory:
Inventory level to which we try to replenish.
The actual inventory can exceed this value. - Leadtime:
Time taken between placing the purchase order with the supplier and the delivery of the material.
Using the additional parameters described below the replenishments can be controlled in more detail. The resulting inventory profile can end up to be completely different from the classical saw-tooth pattern!
The timing of the replenishments can be constrained by the following parameters:
- MinimumInterval:
Minimum time between replenishments.
The order quantity will be increased such that it covers at least the demand in the minimum interval period. The actual inventory can exceed the target set by the MinimumInventory parameter. - MaximumInterval:
Maximum time between replenishments.
The order quantity will replenish to an inventory value less than the maximum when this maximum interval is reached. When the minimum and maximum interval are equal we basically define a fixed schedule replenishment policy.
The quantity of the replenishments can be constrained by the following parameters:
- MinimumQuantity:
Minimum quantity for a replenishment.
This parameter can cause the actual inventory to exceed the target set by the MinimumInventory parameter. - MaximumQuantity:
Maximum quantity for a replenishment.
This parameter can cause the maximum inventory target never to be reached. - MultipleQuantity:
All replenishments are rounded up to a multiple of this value. When the minimum and maximum quantity are equal we basically define a fixed quantity replenishment policy.
Definition at line 2821 of file model.h.
Constructor & Destructor Documentation
| frepple::BufferProcure::BufferProcure | ( | const string & | c | ) | [inline, explicit] |
Member Function Documentation
| void frepple::BufferProcure::endElement | ( | XMLInput & | , | |
| const Attribute & | , | |||
| const DataElement & | ||||
| ) | [virtual] |
Called while restoring the model from an XML-file. This is called when the corresponding close element tag is encountered, and the Data() member of pElement is also valid. NOTE: each object receives both its own beginElement so it can process its own element tag attributes, and its own endElement so it can process its own character data.
Reimplemented from frepple::Buffer.
Definition at line 584 of file buffer.cpp.
| TimePeriod frepple::BufferProcure::getFence | ( | ) | const [inline] |
| TimePeriod frepple::BufferProcure::getLeadtime | ( | ) | const [inline] |
| TimePeriod frepple::BufferProcure::getMaximumInterval | ( | ) | const [inline] |
| double frepple::BufferProcure::getMaximumInventory | ( | ) | const [inline] |
| TimePeriod frepple::BufferProcure::getMinimumInterval | ( | ) | const [inline] |
| double frepple::BufferProcure::getMinimumInventory | ( | ) | const [inline] |
| Operation * frepple::BufferProcure::getOperation | ( | ) | const |
Returns the operation that is automatically created to represent the procurements.
Definition at line 639 of file buffer.cpp.
| virtual size_t frepple::BufferProcure::getSize | ( | ) | const [inline, virtual] |
Return the memory size of the object in bytes.
Implements frepple::Object.
| double frepple::BufferProcure::getSizeMaximum | ( | ) | const [inline] |
| double frepple::BufferProcure::getSizeMinimum | ( | ) | const [inline] |
| double frepple::BufferProcure::getSizeMultiple | ( | ) | const [inline] |
| virtual const MetaClass& frepple::BufferProcure::getType | ( | ) | const [inline, virtual] |
This returns the type information on the object, a bit similar to the standard type_info information.
Reimplemented from frepple::Buffer.
| void frepple::BufferProcure::setFence | ( | TimePeriod | p | ) | [inline] |
| void frepple::BufferProcure::setLeadtime | ( | TimePeriod | p | ) | [inline] |
| void frepple::BufferProcure::setMaximumInterval | ( | TimePeriod | p | ) | [inline] |
| void frepple::BufferProcure::setMaximumInventory | ( | double | f | ) | [inline] |
| void frepple::BufferProcure::setMinimumInterval | ( | TimePeriod | p | ) | [inline] |
| void frepple::BufferProcure::setMinimumInventory | ( | double | f | ) | [inline] |
| void frepple::BufferProcure::setSizeMaximum | ( | double | f | ) | [inline] |
| void frepple::BufferProcure::setSizeMinimum | ( | double | f | ) | [inline] |
| void frepple::BufferProcure::setSizeMultiple | ( | double | f | ) | [inline] |
| virtual void frepple::BufferProcure::solve | ( | Solver & | s, | |
| void * | v = NULL | |||
| ) | const [inline, virtual] |
This method is called by solver classes. The implementation of this class simply calls the solve method on the solver class. Using the polymorphism the solver can implement seperate methods for different plannable subclasses.
Reimplemented from frepple::Buffer.
| void frepple::BufferProcure::writeElement | ( | XMLOutput * | o, | |
| const Keyword & | tag, | |||
| mode | m = DEFAULT | |||
| ) | const [virtual] |
Called while writing the model into an XML-file. The user class should write itself out, using the IOutStream members for its "simple" members and calling writeElement recursively for any contained objects. Not all classes are expected to implement this method. In instances of such a class can be created but can't be persisted. E.g. Command
Reimplemented from frepple::Buffer.
Definition at line 609 of file buffer.cpp.
Member Data Documentation
const MetaClass frepple::BufferProcure::metadata [static] |
The documentation for this class was generated from the following files:
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