org.codehaus.janino.util.iterator

Class IteratorCollection<T>

java.lang.Object

java.util.AbstractCollection<T>

org.codehaus.janino.util.iterator.IteratorCollection<T>

Type Parameters:

T - The element type of the iterator and the collection

All Implemented Interfaces:

java.lang.Iterable<T>, java.util.Collection<T>

public class IteratorCollection<T>
extends java.util.AbstractCollection<T>

A Collection that lazily reads its elements from an Iterator.

In other words, you can call iterator() as often as you want, but the IteratorCollection will iterate over its delegate only once.

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List	elements Lazily-filled collection of the elements delivered by the delegate.
private java.util.Iterator<T>	iterator The delegate.

Constructor Summary

Constructors

Constructor and Description
IteratorCollection(java.util.Iterator iterator)

Method Summary

Modifier and Type	Method and Description
java.util.Iterator<T>	iterator()
int	size()

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

iterator

private final java.util.Iterator<T> iterator

The delegate.

elements

private final java.util.List elements

Lazily-filled collection of the elements delivered by the delegate.

Constructor Detail

IteratorCollection

public IteratorCollection(java.util.Iterator iterator)

Method Detail

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T>

Specified by:

iterator in interface java.util.Collection<T>

Specified by:

iterator in class java.util.AbstractCollection<T>

size

public int size()

Specified by:

size in interface java.util.Collection<T>

Specified by:

size in class java.util.AbstractCollection<T>