Top Description Fields Constructors Methods
org.eclipse.persistence.jpa.jpql.tools.utility.iterator

public final Class EmptyIterator

extends Object
implements Iterator<Object>
Class Inheritance
All Implemented Interfaces
java.util.Iterator
Annotations
@SuppressWarnings:nls
Imports
java.util.Iterator, .NoSuchElementException
A null instance of an Iterator.
Since
2.4
Version
2.4

Field Summary

Modifier and TypeField and Description
private static EmptyIterator
INSTANCE

The singleton instance this EmptyIterator.

Constructor Summary

AccessConstructor and Description
private
EmptyIterator()

Ensure non-instantiability.

Method Summary

Modifier and TypeMethod and Description
public boolean
hasNext()

Implements java.util.Iterator.hasNext.

Returns true if the iteration has more elements.
public static synchronized <T> Iterator<T>

Returns:

The singleton instance this EmptyIterator
instance()

Returns the singleton instance this EmptyIterator.

public Object
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).
public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
Inherited from java.lang.Object:
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Field Detail

INSTANCEback to summary
private static EmptyIterator INSTANCE

The singleton instance this EmptyIterator.

Constructor Detail

EmptyIteratorback to summary
private EmptyIterator()

Ensure non-instantiability.

Method Detail

hasNextback 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

Annotations
@Override
instanceback to summary
public static synchronized <T> Iterator<T> instance()

Returns the singleton instance this EmptyIterator.

Returns:Iterator<T>

The singleton instance this EmptyIterator

Annotations
@SuppressWarnings:unchecked
nextback to summary
public Object next()

Implements java.util.Iterator.next.

Doc from java.util.Iterator.next.

Returns the next element in the iteration.

Returns:Object

the next element in the iteration

Annotations
@Override
removeback 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.

Annotations
@Override
toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object.

Annotations
@Override