org.jinq.orm.stream

Class NextOnlyIterator<T>

java.lang.Object

org.jinq.orm.stream.NextOnlyIterator<T>

Type Parameters:

T -

All Implemented Interfaces:

java.util.Iterator<T>

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

Creating things that act like iterators is annoying because the programmer has to supply implementations of the hasNext() and next() methods. This class is similar to the GUAVA AbstractIterator.

Constructor Summary

Constructors

Constructor and Description
NextOnlyIterator()

Method Summary

Modifier and Type	Method and Description
protected abstract void	generateNext() This method will be called by the iterator whenever it needs to find the next element to be iterated over.
boolean	hasNext()
T	next()
protected void	nextElement(T el) Call this from generateNext() with the next element to be returned from the iterator.
protected void	noMoreElements() Call this from generateNext() if there are no more elements to be iterated over.

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, remove

Constructor Detail

NextOnlyIterator

public NextOnlyIterator()

Method Detail

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>

generateNext

protected abstract void generateNext()

This method will be called by the iterator whenever it needs to find the next element to be iterated over. Each time generateNext() is called, it should call nextElement() or noMoreElements() as appropriate.

nextElement

protected void nextElement(T el)

Call this from generateNext() with the next element to be returned from the iterator.

Parameters:

el -

noMoreElements

protected void noMoreElements()

Call this from generateNext() if there are no more elements to be iterated over.