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ForwardingIterator (Guava: Google Core Libraries for Java 11.0.1 API)
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com.google.common.collect
Class ForwardingIterator<T>
java.lang.Object
com.google.common.collect.ForwardingObject
com.google.common.collect.ForwardingIterator<T>
- All Implemented Interfaces:
- Iterator<T>
- Direct Known Subclasses:
- ForwardingListIterator
@GwtCompatible
public abstract class ForwardingIterator<T>
- extends ForwardingObject
- implements Iterator<T>
An iterator which forwards all its method calls to another iterator. Subclasses should override one or more methods to modify the behavior of the backing iterator as desired per the decorator pattern.
- Since:
- 2.0 (imported from Google Collections Library)
- Author:
- Kevin Bourrillion
Constructor Summary | |
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protected |
ForwardingIterator()
Constructor for use by subclasses. |
Method Summary | |
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protected abstract Iterator<T> |
delegate()
Returns the backing delegate instance that methods are forwarded to. |
boolean |
hasNext()
|
T |
next()
|
void |
remove()
|
Methods inherited from class com.google.common.collect.ForwardingObject |
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toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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ForwardingIterator
protected ForwardingIterator()
- Constructor for use by subclasses.
Method Detail |
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delegate
protected abstract Iterator<T> delegate()
- Description copied from class:
ForwardingObject
- Returns the backing delegate instance that methods are forwarded to.
Abstract subclasses generally override this method with an abstract method
that has a more specific return type, such as
ForwardingSet.delegate()
. Concrete subclasses override this method to supply the instance being decorated.- Specified by:
delegate
in classForwardingObject
hasNext
public boolean hasNext()
next
public T next()
remove
public void remove()
|
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