KSLCore/ksl.modeling.supplychain.inventory/BackLogPolicyAbstract

BackLogPolicyAbstract

abstract class BackLogPolicyAbstract @JvmOverloads constructor(inventory: Inventory, name: String? = null) : ModelElement, BackLogInfoIfc(source)

Abstract base for backlog policies that an Inventory uses to handle demands which cannot be filled immediately.

Subclasses provide a queue/data structure for waiting demands and statistic accessors; backlog and fillBackLogs are the two primary extension points.

See sc.inventorylayer.BackLogPolicyAbstract

Inheritors

Constructors

BackLogPolicyAbstract

constructor(inventory: Inventory, name: String? = null)

Properties

amountBackLogged

open override val amountBackLogged: Int

Total units associated with all backlogged demands.

protected val amtBackLogged: TWResponse

amtBackLoggedResponse

val amtBackLoggedResponse: TWResponseCIfc

Read-only view of the amount-backlogged response.

val avgBacklogInQ: Double

Time-weighted average backlog over the post-warmup observation window for the most recent replication. Cost calculators read this in their REPLICATION_ENDED callback to compute the continuous backorder-cost line — saves observers from having to reach through to amtBackLogged's within-replication statistic. Returns 0.0 if read before the first replication end (no within-replication data yet).

protected val inventory: Inventory

Functions

allocateInventory

protected fun allocateInventory(demand: SupplyChainModel.Demand): Int

attachAggregateInventoryResponse

open fun attachAggregateInventoryResponse(r: AggregateInventoryResponseIfc)

Wire the amount-backlogged response into the upstream aggregate. Subclasses can override to add their queue-level responses.

protected abstract fun backlog(demand: SupplyChainModel.Demand)

Place demand into this policy's backlog structure.

detachAggregateInventoryResponse

open fun detachAggregateInventoryResponse(r: AggregateInventoryResponseIfc)

protected fun fillBackLog(demand: SupplyChainModel.Demand, amount: Int)

protected abstract fun fillBackLogs()

Attempt to fill currently-backlogged demands.

getBackLogStatistics

abstract fun getBackLogStatistics(): BackLogStatisticsIfc

Subclasses provide the backlog statistic surface.