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java.lang.Object | +--org.apache.commons.collections.iterators.EntrySetMapIterator
Implements a MapIterator
using a Map entrySet.
Reverse iteration is not supported.
MapIterator it = map.mapIterator(); while (it.hasNext()) { Object key = it.next(); Object value = it.getValue(); it.setValue(newValue); }
Constructor Summary | |
EntrySetMapIterator(Map map)
Constructor. |
Method Summary | |
Object |
getKey()
Gets the current key, which is the key returned by the last call to next() . |
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. |
Object |
next()
Gets the next key from the Map . |
void |
remove()
Removes the last returned key from the underlying Map . |
void |
reset()
Resets the state of the iterator. |
Object |
setValue(Object value)
Sets the value associated with the current key. |
String |
toString()
Gets the iterator as a String. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public EntrySetMapIterator(Map map)
map
- the map to iterate overMethod Detail |
public boolean hasNext()
hasNext
in interface MapIterator
true
if the iterator has more elementspublic Object next()
Map
.next
in interface MapIterator
NoSuchElementException
- if the iteration is finishedpublic void remove()
Map
.
This method can be called once per call to next()
.
remove
in interface MapIterator
UnsupportedOperationException
- if remove is not supported by the mapIllegalStateException
- if next()
has not yet been calledIllegalStateException
- if remove()
has already been called
since the last call to next()
public Object getKey()
next()
.getKey
in interface MapIterator
IllegalStateException
- if next()
has not yet been calledpublic Object getValue()
next()
.getValue
in interface MapIterator
IllegalStateException
- if next()
has not yet been calledpublic Object setValue(Object value)
setValue
in interface MapIterator
value
- the new valueUnsupportedOperationException
- if setValue is not supported by the mapIllegalStateException
- if next()
has not yet been calledIllegalStateException
- if remove()
has been called since the
last call to next()
public void reset()
reset
in interface ResettableIterator
public String toString()
toString
in class Object
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