org.apache.sling.query.iterator

Class SuppIterator<T>

java.lang.Object

org.apache.sling.query.iterator.AbstractIterator<Option<T>>

org.apache.sling.query.iterator.SuppIterator<T>

All Implemented Interfaces:

Iterator<Option<T>>

public class SuppIterator<T>
extends AbstractIterator<Option<T>>

This iterator returns all elements of the input list which are mapped to non-empty values by the input function. Name is inspired by the support of the function.

Constructor Summary

Constructors

Constructor and Description
SuppIterator(List<Option<T>> input, IteratorToIteratorFunction<T> function)

Method Summary

Methods

Modifier and Type	Method and Description
protected Option<T>	getElement() The idea behind this method is that index of each element in the input iterator is passed to the function.

Methods inherited from class org.apache.sling.query.iterator.AbstractIterator

hasNext, next, remove

Methods inherited from class java.lang.Object

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

Constructor Detail

SuppIterator

public SuppIterator(List<Option<T>> input,
            IteratorToIteratorFunction<T> function)

Method Detail

getElement

protected Option<T> getElement()

The idea behind this method is that index of each element in the input iterator is passed to the function. Elements returned by the output iterator contains the same index, which can be used to assign input to output elements. We check which indices are present in the output iterator and return only related input elements.

Specified by:

getElement in class AbstractIterator<Option<T>>