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java.lang.Object org.apache.commons.collections.iterators.AbstractOrderedMapIteratorDecorator
public class AbstractOrderedMapIteratorDecorator
Provides basic behaviour for decorating an ordered map iterator with extra functionality.
All methods are forwarded to the decorated map iterator.
Field Summary | |
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protected OrderedMapIterator |
iterator
The iterator being decorated |
Constructor Summary | |
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AbstractOrderedMapIteratorDecorator(OrderedMapIterator iterator)
Constructor that decorates the specified iterator. |
Method Summary | |
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java.lang.Object |
getKey()
Gets the current key, which is the key returned by the last call to next() . |
protected OrderedMapIterator |
getOrderedMapIterator()
Gets the iterator being decorated. |
java.lang.Object |
getValue()
Gets the current value, which is the value associated with the last key returned by next() . |
boolean |
hasNext()
Checks to see if there are more entries still to be iterated. |
boolean |
hasPrevious()
Checks to see if there is a previous element that can be iterated to. |
java.lang.Object |
next()
Gets the next key from the Map . |
java.lang.Object |
previous()
Gets the previous element from the collection. |
void |
remove()
Removes the last returned key from the underlying Map (optional operation). |
java.lang.Object |
setValue(java.lang.Object obj)
Sets the value associated with the current key (optional operation). |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected final OrderedMapIterator iterator
Constructor Detail |
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public AbstractOrderedMapIteratorDecorator(OrderedMapIterator iterator)
iterator
- the iterator to decorate, must not be null
java.lang.IllegalArgumentException
- if the collection is nullMethod Detail |
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protected OrderedMapIterator getOrderedMapIterator()
public boolean hasNext()
MapIterator
hasNext
in interface java.util.Iterator
hasNext
in interface MapIterator
true
if the iterator has more elementspublic java.lang.Object next()
MapIterator
Map
.
next
in interface java.util.Iterator
next
in interface MapIterator
public boolean hasPrevious()
OrderedIterator
hasPrevious
in interface OrderedIterator
hasPrevious
in interface OrderedMapIterator
true
if the iterator has a previous elementpublic java.lang.Object previous()
OrderedIterator
previous
in interface OrderedIterator
previous
in interface OrderedMapIterator
public void remove()
MapIterator
Map
(optional operation).
This method can be called once per call to next()
.
remove
in interface java.util.Iterator
remove
in interface MapIterator
public java.lang.Object getKey()
MapIterator
next()
.
getKey
in interface MapIterator
public java.lang.Object getValue()
MapIterator
next()
.
getValue
in interface MapIterator
public java.lang.Object setValue(java.lang.Object obj)
MapIterator
setValue
in interface MapIterator
obj
- the new value
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