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

java.lang.Object
  extended by org.neo4j.helpers.collection.PrefetchingIterator<T>
      extended by 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 criterias pass through. All iteration/filtering is done lazily.


Constructor Summary
FilteringIterator(Iterator<T> source, Predicate<T> predicate)
           
 
Method Summary
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, remove
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

FilteringIterator

public FilteringIterator(Iterator<T> source,
                         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)

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