Package jflex.state

Class StateSetEnumerator

java.lang.Object

jflex.state.StateSetEnumerator

All Implemented Interfaces:

Iterator<Integer>, PrimitiveIterator<Integer,IntConsumer>, PrimitiveIterator.OfInt

public final class StateSetEnumerator
extends Object
implements PrimitiveIterator.OfInt

Enumerates the states of a StateSet. Also provides an iterator for native int.

Version:

JFlex 1.8.2

Author:

Gerwin Klein

See Also:

StateSet

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.PrimitiveIterator

PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

Constructor Summary

Constructors

Constructor	Description
StateSetEnumerator()	Creates a new StateSetEnumerator that is not yet associated with a StateSet.
StateSetEnumerator(StateSet states)	Construct a StateSetEnumerator for a given StateSet.

Method Summary

Modifier and Type	Method	Description
boolean	hasMoreElements()	Determine if there are further elements in the set to be returned.
boolean	hasNext()	Iterator interface method for nextElement().
int	nextElement()	Return the next element from the set.
int	nextInt()	Iterator interface method for hasMoreElements()
void	reset(StateSet states)	Reset this enumerator/iterator and associate it with a given StateSet.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Iterator

remove

Methods inherited from interface java.util.PrimitiveIterator.OfInt

forEachRemaining, forEachRemaining, next

Constructor Detail

StateSetEnumerator

public StateSetEnumerator()

Creates a new StateSetEnumerator that is not yet associated with a StateSet. hasMoreElements() and nextElement() will throw NullPointerException when used before reset(StateSet)

StateSetEnumerator

public StateSetEnumerator(StateSet states)

Construct a StateSetEnumerator for a given StateSet. This should be the default constructor to use.

Parameters:

states - the StateSet object to iterate over.

See Also:

StateSet.states()

Method Detail

reset

public void reset(StateSet states)

Reset this enumerator/iterator and associate it with a given StateSet.

Parameters:

states - the StateSet object to iterate over.

hasMoreElements

public boolean hasMoreElements()

Determine if there are further elements in the set to be returned.

Returns:

true iff there are more elements in the set.

nextElement

public int nextElement()

Return the next element from the set.

Precondition: hasMoreElements() returns true

Returns:

the next element.

Throws:

NoSuchElementException - if there is no further element

See Also:

hasMoreElements()

hasNext

public boolean hasNext()

Iterator interface method for nextElement().

Specified by:

hasNext in interface Iterator<Integer>

nextInt

public int nextInt()

Iterator interface method for hasMoreElements()

Specified by:

nextInt in interface PrimitiveIterator.OfInt