Examples of MapIterator

org.apache.commons.collections.MapIterator
Defines an iterator that operates over a Map.
This iterator is a special version designed for maps. It can be more efficient to use this rather than an entry set iterator where the option is available, and it is certainly more convenient.
A map that provides this interface may not hold the data internally using Map Entry objects, thus this interface can avoid lots of object creation.
In use, this iterator iterates through the keys in the map. After each call to next(), the getValue() method provides direct access to the value. The value can also be set using setValue().
```
 MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue(newValue); } 
```
@since Commons Collections 3.0 @version $Revision: 1.7 $ $Date: 2004/02/18 01:15:42 $ @author Stephen Colebourne
org.apache.commons.collections15.MapIterator
Defines an iterator that operates over a Map.
This iterator is a special version designed for maps. It can be more efficient to use this rather than an entry set iterator where the option is available, and it is certainly more convenient.
A map that provides this interface may not hold the data internally using Map Entry objects, thus this interface can avoid lots of object creation.
In use, this iterator iterates through the keys in the map. After each call to next(), the getValue() method provides direct access to the value. The value can also be set using setValue().
```
 MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue(newValue); } 
```
@author Matt Hall, John Watkinson, Stephen Colebourne @version $Revision: 1.1 $ $Date: 2005/10/11 17:05:19 $ @since Commons Collections 3.0

Examples of org.apache.commons.collections.MapIterator

    //-----------------------------------------------------------------------
    public void testMapIteratorRemoveGetKey() {
        if (supportsRemove() == false) {
            return;
        }
        MapIterator it = makeFullMapIterator();
        Map map = getMap();
        Map confirmed = getConfirmedMap();
        
        assertEquals(true, it.hasNext());
        Object key = it.next();
        
        it.remove();
        confirmed.remove(key);
        verify();
        
        try {
            it.getKey();
            fail();
        } catch (IllegalStateException ex) {}
        verify();
    }

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Examples of org.apache.commons.collections15.MapIterator

    public void testMapIterator() {
        assertTrue(makeEmptyMapIterator() instanceof Unmodifiable);
    }


    public void testDecorateFactory() {
        MapIterator it = makeFullMapIterator();
        assertSame(it, UnmodifiableMapIterator.decorate(it));


        it = ((BidiMap) getMap()).mapIterator();
        assertTrue(it != UnmodifiableMapIterator.decorate(it));

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