org.infinispan.commons.util

Class FilterIterator<E>

java.lang.Object

org.infinispan.commons.util.AbstractIterator<E>

org.infinispan.commons.util.FilterIterator<E>

All Implemented Interfaces:

java.lang.AutoCloseable, java.util.Iterator<E>, CloseableIterator<E>

public class FilterIterator<E>
extends AbstractIterator<E>
implements CloseableIterator<E>

Iterator that also filters out entries based on the provided predicate. This iterator implements CloseableIterator and will close the provided iterator if it also implemented CloseableIterator.

This iterator supports removal as long as the provided iterator supports removal. Although note only entries returned by the filter can be removed.

Since:

9.3

Constructor Summary

Constructors

Constructor and Description
FilterIterator(java.util.Iterator<E> iter, java.util.function.Predicate<? super E> filter)

Method Summary

Modifier and Type	Method and Description
void	close()
protected E	getNext() Method to implement to provide an iterator implementation.
void	remove()

Methods inherited from class org.infinispan.commons.util.AbstractIterator

forEachRemaining, hasNext, next

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next

Constructor Detail

FilterIterator

public FilterIterator(java.util.Iterator<E> iter,
                      java.util.function.Predicate<? super E> filter)

Method Detail

getNext

protected E getNext()

Description copied from class: AbstractIterator

Method to implement to provide an iterator implementation. When this method returns null, the iterator is complete.

Specified by:

getNext in class AbstractIterator<E>

Returns:

the next value for the iterator to return or null for it to be complete.

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface CloseableIterator<E>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<E>