Package org.aksw.jena_sparql_api.util.collection

Class RangeCostModel

java.lang.Object

org.aksw.jena_sparql_api.util.collection.RangeCostModel

Type Parameters:

T -

public class RangeCostModel
extends Object

Iterator that changes its delegate in case there is a problem with the current one

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected Function<Long,Double>	offsetToQueryCost	The cost of starting a request a given offset (independent of the range of items being fetched)
protected Function<com.google.common.collect.Range<Long>,Double>	rangeToIterCost	The cost of iterating items [TODO this is bull]
protected double	waitCostThreshold	The maximum cost for waiting for an intersecting interval before the requested range to become available

Constructor Summary

Constructors

Constructor	Description
RangeCostModel()

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

waitCostThreshold

protected double waitCostThreshold

The maximum cost for waiting for an intersecting interval before the requested range to become available

rangeToIterCost

protected Function<com.google.common.collect.Range<Long>,Double> rangeToIterCost

The cost of iterating items [TODO this is bull]

offsetToQueryCost

protected Function<Long,Double> offsetToQueryCost

The cost of starting a request a given offset (independent of the range of items being fetched)

Constructor Details

RangeCostModel

public RangeCostModel()