org.apache.commons.collections.iterators
public class EntrySetMapIterator extends Object implements MapIterator, ResettableIterator
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); }
Since: Commons Collections 3.0
Version: $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
Constructor Summary | |
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EntrySetMapIterator(Map map)
Constructor.
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Method Summary | |
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Object | getKey()
Gets the current key, which is the key returned by the last call
to next() .
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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.
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Object | next()
Gets the next key from the Map .
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void | remove()
Removes the last returned key from the underlying Map .
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void | reset()
Resets the state of the iterator. |
Object | setValue(Object value)
Sets the value associated with the current key.
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String | toString()
Gets the iterator as a String.
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Parameters: map the map to iterate over
next()
.
Returns: the current key
Throws: IllegalStateException if next()
has not yet been called
next()
.
Returns: the current value
Throws: IllegalStateException if next()
has not yet been called
Returns: true
if the iterator has more elements
Map
.
Returns: the next key in the iteration
Throws: java.util.NoSuchElementException if the iteration is finished
Map
.
This method can be called once per call to next()
.
Throws: UnsupportedOperationException if remove is not supported by the map IllegalStateException if next()
has not yet been called IllegalStateException if remove()
has already been called
since the last call to next()
Parameters: value the new value
Returns: the previous value
Throws: UnsupportedOperationException if setValue is not supported by the map IllegalStateException if next()
has not yet been called IllegalStateException if remove()
has been called since the
last call to next()
Returns: a string version of the iterator