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Java Source Code / Java Documentation » Library » Apache common Collections » org.apache.commons.collections.iterators

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.commons.collections.iterators .EntrySetMapIterator

EntrySetMapIterator
public class EntrySetMapIterator implements MapIterator,ResettableIterator(Code)
	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); } since: Commons Collections 3.0 version: $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $ author: Stephen Colebourne

Constructor Summary
public	EntrySetMapIterator(Map map) Constructor.

Method Summary
public Object	getKey() Gets the current key, which is the key returned by the last call to `next()`.
public Object	getValue() Gets the current value, which is the value associated with the last key returned by `next()`.
public boolean	hasNext() Checks to see if there are more entries still to be iterated.
public Object	next() Gets the next key from the `Map`.
public void	remove() Removes the last returned key from the underlying `Map`.
public void	reset() Resets the state of the iterator.
public Object	setValue(Object value) Sets the value associated with the current key.
public String	toString() Gets the iterator as a String.

Constructor Detail

EntrySetMapIterator
public EntrySetMapIterator(Map map)(Code)
	Constructor. Parameters: map - the map to iterate over

Method Detail

getKey
public Object getKey()(Code)
	Gets the current key, which is the key returned by the last call to `next()`. the current key throws: IllegalStateException - if `next()` has not yet been called

getValue
public Object getValue()(Code)
	Gets the current value, which is the value associated with the last key returned by `next()`. the current value throws: IllegalStateException - if `next()` has not yet been called

hasNext
public boolean hasNext()(Code)
	Checks to see if there are more entries still to be iterated. `true` if the iterator has more elements

next
public Object next()(Code)
	Gets the next key from the `Map`. the next key in the iteration throws: java.util.NoSuchElementException - if the iteration is finished

remove
public void remove()(Code)
	Removes the last returned key from the underlying `Map`. This method can be called once per call to `next()`. throws: UnsupportedOperationException - if remove is not supported by the map throws: IllegalStateException - if `next()` has not yet been called throws: IllegalStateException - if `remove()` has already been calledsince the last call to `next()`

reset
public void reset()(Code)
	Resets the state of the iterator.

setValue
public Object setValue(Object value)(Code)
	Sets the value associated with the current key. Parameters: value - the new value the previous value throws: UnsupportedOperationException - if setValue is not supported by the map throws: IllegalStateException - if `next()` has not yet been called throws: IllegalStateException - if `remove()` has been called since thelast call to `next()`

toString
public String toString()(Code)
	Gets the iterator as a String. a string version of the iterator

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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