org.neo4j.helpers.collection

Class FilteringIterator<T>

java.lang.Object

org.neo4j.helpers.collection.PrefetchingIterator<T>

org.neo4j.helpers.collection.FilteringIterator<T>

Type Parameters:

T - the type of items in the iteration.

All Implemented Interfaces:

Iterator<T>

public class FilteringIterator<T>
extends PrefetchingIterator<T>

An iterator which filters another iterator, only letting items with certain criteria pass through. All iteration/filtering is done lazily.

Constructor Summary

Constructors

Constructor and Description
FilteringIterator(Iterator<T> source, Predicate<T> predicate) Deprecated. use FilteringIterator( Iterator, Predicate ) instead
FilteringIterator(Iterator<T> source, org.neo4j.function.Predicate<T> predicate)

Method Summary

Modifier and Type	Method and Description
static <T> Iterator<T>	noDuplicates(Iterator<T> source)
static <T> Iterator<T>	notNull(Iterator<T> source)

Methods inherited from class org.neo4j.helpers.collection.PrefetchingIterator

hasNext, next, peek, remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

FilteringIterator

@Deprecated
public FilteringIterator(Iterator<T> source,
                                     Predicate<T> predicate)

Deprecated. use FilteringIterator( Iterator, Predicate ) instead

Parameters:

source - the iterator to fetch items from

predicate - the filter to use

FilteringIterator

public FilteringIterator(Iterator<T> source,
                         org.neo4j.function.Predicate<T> predicate)

Method Detail

notNull

public static <T> Iterator<T> notNull(Iterator<T> source)

noDuplicates

public static <T> Iterator<T> noDuplicates(Iterator<T> source)