Package org.aksw.commons.rx.cache.range

Class ListPaginatorWithSimpleCache<T>

java.lang.Object

org.aksw.commons.util.delegate.AbstractDelegated<RangedSupplier<I,P>>

org.aksw.commons.rx.range.RangedSupplierDelegated<Long,T>

org.aksw.commons.rx.cache.range.ListPaginatorWithSimpleCache<T>

All Implemented Interfaces:

Function<com.google.common.collect.Range<Long>,io.reactivex.rxjava3.core.Flowable<T>>, ListPaginator<T>, RangedSupplier<Long,T>, Delegated<RangedSupplier<Long,T>>, Unwrappable

public class ListPaginatorWithSimpleCache<T>
extends RangedSupplierDelegated<Long,T>
implements ListPaginator<T>

A cache that upon any item or count request caches the full range of data into a (java) List and subsequently serves the request from the cache. This class performs only at most a single request to the delegate's apply method.

Author:

raven

Field Summary

Fields

Modifier and Type	Field	Description
protected io.reactivex.rxjava3.core.Single<List<T>>	cache

Fields inherited from class org.aksw.commons.util.delegate.AbstractDelegated

delegate

Constructor Summary

Constructors

Constructor	Description
ListPaginatorWithSimpleCache(RangedSupplier<Long,T> delegate)

Method Summary

Modifier and Type	Method	Description
io.reactivex.rxjava3.core.Flowable<T>	apply(com.google.common.collect.Range<Long> range)
io.reactivex.rxjava3.core.Single<com.google.common.collect.Range<Long>>	fetchCount(Long itemLimit, Long rowLimit)
static <V> ListPaginator<V>	wrap(ListPaginator<V> backend)

Methods inherited from class org.aksw.commons.util.delegate.AbstractDelegated

delegate, equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface org.aksw.commons.rx.lookup.ListPaginator

batch, fetchList, map

Methods inherited from interface org.aksw.commons.util.delegate.Unwrappable

unwrap

Field Details

cache

protected io.reactivex.rxjava3.core.Single<List<T>> cache

Constructor Details

ListPaginatorWithSimpleCache

public ListPaginatorWithSimpleCache(RangedSupplier<Long,T> delegate)

Method Details

fetchCount

public io.reactivex.rxjava3.core.Single<com.google.common.collect.Range<Long>> fetchCount(Long itemLimit,
 Long rowLimit)

Specified by:

fetchCount in interface ListPaginator<T>

Parameters:

itemLimit - This argument is ignored

rowLimit - This argument is Ignored

apply

public io.reactivex.rxjava3.core.Flowable<T> apply(com.google.common.collect.Range<Long> range)

Specified by:

apply in interface Function<com.google.common.collect.Range<Long>,io.reactivex.rxjava3.core.Flowable<T>>

Overrides:

apply in class RangedSupplierDelegated<Long,T>

wrap

public static <V> ListPaginator<V> wrap(ListPaginator<V> backend)