Hibernate ORM - hibernate-core 5.6.15.Final · org.hibernate.internal.util.collections.JoinedIterator

public Class JoinedIterator<T>

extends Object
implements Iterator<T>

Class Inheritance

java.lang.Object
org.hibernate.internal.util.collections.JoinedIterator

All Implemented Interfaces

java.util.Iterator

Imports

An Iterator implementation that wraps other Iterators, and presents them all as one continuous Iterator. When any method from Iterator is called, we delegate to each wrapped Iterator in turn until all wrapped Iterators are exhausted.

Authors

Gavine King, Steve Ebersole

Modifier and Type	Field and Description
private Iterator<T>	currentIterator
private int	currentIteratorIndex
private Iterator<T>	lastUsedIterator
private Iterator<T>[]	wrappedIterators

Modifier and Type

Field and Description

private Iterator<T>

currentIterator

private int

currentIteratorIndex

private Iterator<T>

lastUsedIterator

private Iterator<T>[]

wrappedIterators

Constructor Summary

Access	Constructor and Description
public	JoinedIterator(List<Iterator<T>> wrappedIterators)
public	JoinedIterator(Iterator<T>... iteratorsToWrap)

Method Summary

Modifier and Type	Method and Description
public boolean	hasNext() Implements java.util.Iterator.hasNext. Returns `true` if the iteration has more elements.
public T	next() Implements java.util.Iterator.next. Returns the next element in the iteration.
public void	remove() Overrides default java.util.Iterator.remove. Removes from the underlying collection the last element returned by this iterator (optional operation).
protected void	updateCurrentIterator()

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

currentIterator	back to summary
private Iterator<T> currentIterator

currentIteratorIndex	back to summary
private int currentIteratorIndex

lastUsedIterator	back to summary
private Iterator<T> lastUsedIterator

wrappedIterators	back to summary
private Iterator<T>[] wrappedIterators

Constructor Detail

JoinedIterator	back to summary
public JoinedIterator(List<Iterator<T>> wrappedIterators) Annotations @SuppressWarnings:unchecked

JoinedIterator	back to summary
public JoinedIterator(Iterator<T>... iteratorsToWrap)

Method Detail

hasNext back to summary

hasNext	back to summary
public boolean hasNext() Implements java.util.Iterator.hasNext. Doc from java.util.Iterator.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.) Returns:boolean `true` if the iteration has more elements

public boolean hasNext()

Implements java.util.Iterator.hasNext.

Doc from java.util.Iterator.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.)

Returns:boolean: true if the iteration has more elements

next	back to summary
public T next() Implements java.util.Iterator.next. Doc from java.util.Iterator.next. Returns the next element in the iteration. Returns:T the next element in the iteration

back to summary

public T next()

Implements java.util.Iterator.next.

Doc from java.util.Iterator.next.

Returns the next element in the iteration.

Returns:T: the next element in the iteration

remove back to summary

remove	back to summary
public void remove() Overrides default java.util.Iterator.remove. Doc from java.util.Iterator.remove. Removes from the underlying collection the last element returned by this 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, unless an overriding class has specified a concurrent modification policy. The behavior of an iterator is unspecified if this method is called after a call to the `forEachRemaining` method.

public void remove()

Overrides default java.util.Iterator.remove.

Doc from java.util.Iterator.remove.

Removes from the underlying collection the last element returned by this 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, unless an overriding class has specified a concurrent modification policy.

The behavior of an iterator is unspecified if this method is called after a call to the forEachRemaining method.