etri.sdn.controller.util

Class FilterIterator<T>

java.lang.Object

etri.sdn.controller.util.FilterIterator<T>

All Implemented Interfaces:

java.util.Iterator<T>

Direct Known Subclasses:

DeviceIterator

public abstract class FilterIterator<T>
extends java.lang.Object
implements java.util.Iterator<T>

An iterator that will filter values from an iterator and return only those values that match the predicate.

Field Summary

Fields

Modifier and Type	Field and Description
protected T	next
protected java.util.Iterator<T>	subIterator

Constructor Summary

Constructors

Constructor and Description
FilterIterator(java.util.Iterator<T> subIterator) Construct a filter iterator from the given sub iterator

Method Summary

Methods

Modifier and Type	Method and Description
boolean	hasNext()
protected abstract boolean	matches(T value) Check whether the given value should be returned by the filter
T	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

subIterator

protected java.util.Iterator<T> subIterator

next

protected T next

Constructor Detail

FilterIterator

public FilterIterator(java.util.Iterator<T> subIterator)

Construct a filter iterator from the given sub iterator

Parameters:

subIterator - the sub iterator over which we'll filter

Method Detail

matches

protected abstract boolean matches(T value)

Check whether the given value should be returned by the filter

Parameters:

value - the value to check

Returns:

true if the value should be included

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<T>

next

public T next()

Specified by:

next in interface java.util.Iterator<T>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<T>