de.caff.generics

Class IteratorConverter<T,S>

java.lang.Object

de.caff.generics.IteratorConverter<T,S>

Type Parameters:

S - start type

T - target type

All Implemented Interfaces:

java.util.Iterator<T>

public class IteratorConverter<T,S>
extends java.lang.Object
implements java.util.Iterator<T>

Convert an iterator to another type.

Author:

Rammi

Constructor Summary

Constructors

Constructor and Description
IteratorConverter(java.util.Iterator<S> iterator, java.util.function.Function<? super S,? extends T> typeConverter) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext() Returns true if the iteration has more elements.
T	next() Returns the next element in the iteration.
void	remove() Removes from the underlying collection the last element returned by the iterator (optional operation).

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

Constructor Detail

IteratorConverter

public IteratorConverter(@NotNull
                         java.util.Iterator<S> iterator,
                         @NotNull
                         java.util.function.Function<? super S,? extends T> typeConverter)

Constructor.

Parameters:

iterator - iterator to convert

typeConverter - type converter for conversion

Method Detail

hasNext

public boolean hasNext()

Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

Specified by:

hasNext in interface java.util.Iterator<T>

Returns:

true if the iterator has more elements.

next

public T next()

Returns the next element in the iteration. Calling this method repeatedly until the hasNext() method returns false will return each element in the underlying collection exactly once.

Specified by:

next in interface java.util.Iterator<T>

Returns:

the next element in the iteration.

Throws:

java.util.NoSuchElementException - iteration has no more elements.

remove

public void remove()

Removes from the underlying collection the last element returned by the iterator (optional operation). This method can be called only once per call to next. The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.

Specified by:

remove in interface java.util.Iterator<T>

Throws:

java.lang.UnsupportedOperationException - if the remove operation is not supported by this Iterator.

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.