Class FilterIterator<U,T>

java.lang.Object

fr.inria.rules.integraal.util.stream.filter.FilterIterator<U,T>

Type Parameters:

U - type of the initial elements

T - type of the result elements

All Implemented Interfaces:

CloseableIterator<T>, Closeable, AutoCloseable

Direct Known Subclasses:

FilterIteratorWithoutException

public class FilterIterator<U,T>
extends Object
implements CloseableIterator<T>

Wraps an iterator to apply a filter during iteration.

Author:

Florent Tornil

Constructor Summary

Constructors

Constructor	Description
FilterIterator(CloseableIterator<? extends U> it, Filter<U> filter)	Wrapper constructor over an iterator

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the iterator and releases its resources.
boolean	hasNext()	Indicates whether another element can be read from the iterator.
T	next()	Returns the next element from the iterator.

Methods inherited from class Object

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

Constructor Details

FilterIterator

public FilterIterator(CloseableIterator<? extends U> it,
 Filter<U> filter)

Wrapper constructor over an iterator

Parameters:

it - iterator

filter - filter

Method Details

hasNext

public boolean hasNext()
                throws IteratorException

Description copied from interface: CloseableIterator

Indicates whether another element can be read from the iterator.

Specified by:

hasNext in interface CloseableIterator<U>

Returns:

true iff there is a next element

Throws:

IteratorException - if an exception occur

next

public T next()
       throws IteratorException

Description copied from interface: CloseableIterator

Returns the next element from the iterator.

Specified by:

next in interface CloseableIterator<U>

Returns:

the next element

Throws:

IteratorException - if an exception occur

close

public void close()

Description copied from interface: CloseableIterator

Closes the iterator and releases its resources.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface CloseableIterator<U>