com.google.common.collect
Class ForwardingListIterator<E>
java.lang.Object
com.google.common.collect.ForwardingIterator<E>
com.google.common.collect.ForwardingListIterator<E>
- All Implemented Interfaces:
- Iterator<E>, ListIterator<E>
public abstract class ForwardingListIterator<E>
- extends ForwardingIterator<E>
- implements ListIterator<E>
A list iterator which forwards all its method calls to another list
iterator. Subclasses should override one or more methods to modify the
behavior of the backing iterator as desired per the decorator pattern.
- Author:
- Mike Bostock
- See Also:
ForwardingObject
ForwardingListIterator
protected ForwardingListIterator(ListIterator<E> delegate)
- Constructs a forwarding list iterator that forwards to the provided
delegate.
delegate
protected ListIterator<E> delegate()
- Returns the backing delegate object. This method should be overridden to
specify the correct return type. For example:
@SuppressWarnings("unchecked")
@Override protected Foo delegate() {
return (Foo) super.delegate();
}
This method should always return the same delegate instance that was passed
to the constructor.
- Overrides:
delegate
in class ForwardingIterator<E>
add
public void add(E element)
- Specified by:
add
in interface ListIterator<E>
hasPrevious
public boolean hasPrevious()
- Specified by:
hasPrevious
in interface ListIterator<E>
nextIndex
public int nextIndex()
- Specified by:
nextIndex
in interface ListIterator<E>
previous
public E previous()
- Specified by:
previous
in interface ListIterator<E>
previousIndex
public int previousIndex()
- Specified by:
previousIndex
in interface ListIterator<E>
set
public void set(E element)
- Specified by:
set
in interface ListIterator<E>
toString
public String toString()
- Returns the string representation generated by the delegate's
toString
method.
- Overrides:
toString
in class Object