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

Methods

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

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)