org.apache.calcite.linq4j

Class MemoryEnumerable<E>

java.lang.Object

org.apache.calcite.linq4j.DefaultEnumerable<T>

org.apache.calcite.linq4j.AbstractEnumerable<MemoryFactory.Memory<E>>

org.apache.calcite.linq4j.MemoryEnumerable<E>

Type Parameters:

E - Type of the Enumerable items to remember

All Implemented Interfaces:

Iterable<MemoryFactory.Memory<E>>, Enumerable<MemoryFactory.Memory<E>>, ExtendedEnumerable<MemoryFactory.Memory<E>>, ExtendedOrderedEnumerable<MemoryFactory.Memory<E>>, OrderedEnumerable<MemoryFactory.Memory<E>>, RawEnumerable<MemoryFactory.Memory<E>>

public class MemoryEnumerable<E>
extends AbstractEnumerable<MemoryFactory.Memory<E>>

Enumerable that has a (limited) memory for n past and m future steps.

Field Summary

Fields

Modifier and Type	Field and Description
private int	future
private int	history
private Enumerable<E>	input

Constructor Summary

Constructors

Constructor and Description
MemoryEnumerable(Enumerable<E> input, int history, int future) Creates a MemoryEnumerable.

Method Summary

Modifier and Type	Method and Description
Enumerator<MemoryFactory.Memory<E>>	enumerator() Returns an enumerator that iterates through a collection.

Methods inherited from class org.apache.calcite.linq4j.AbstractEnumerable

iterator

Methods inherited from class org.apache.calcite.linq4j.DefaultEnumerable

aggregate, aggregate, aggregate, all, any, any, asEnumerable, asOrderedQueryable, asQueryable, average, average, average, average, average, average, average, average, average, average, cast, concat, contains, contains, correlateJoin, count, count, createOrderedEnumerable, defaultIfEmpty, defaultIfEmpty, distinct, distinct, elementAt, elementAtOrDefault, except, except, first, first, firstOrDefault, firstOrDefault, foreach, getThis, getThisOrdered, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupBy, groupJoin, groupJoin, hashJoin, hashJoin, hashJoin, hashJoin, intersect, intersect, into, last, last, lastOrDefault, lastOrDefault, longCount, longCount, max, max, max, max, max, max, max, max, max, max, max, max, min, min, min, min, min, min, min, min, min, min, min, min, ofType, orderBy, orderBy, orderByDescending, orderByDescending, removeAll, reverse, select, select, selectMany, selectMany, selectMany, selectMany, sequenceEqual, sequenceEqual, single, single, singleOrDefault, singleOrDefault, skip, skipWhile, skipWhile, sum, sum, sum, sum, sum, sum, sum, sum, sum, sum, take, takeWhile, takeWhile, thenBy, thenBy, thenByDescending, thenByDescending, toList, toLookup, toLookup, toLookup, toLookup, toMap, toMap, toMap, toMap, union, union, where, where, zip

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

input

private final Enumerable<E> input

history

private final int history

future

private final int future

Constructor Detail

MemoryEnumerable

MemoryEnumerable(Enumerable<E> input,
                 int history,
                 int future)

Creates a MemoryEnumerable.

Parameters:

input - The Enumerable which the memory should be "wrapped" around

history - Number of present steps to remember

future - Number of future steps to remember

Method Detail

enumerator

public Enumerator<MemoryFactory.Memory<E>> enumerator()

Description copied from interface: RawEnumerable

Returns an enumerator that iterates through a collection.