gnu.trove

Class TPrimitiveIterator

java.lang.Object

gnu.trove.TIterator

gnu.trove.TPrimitiveIterator

Direct Known Subclasses:

TDoubleDoubleIterator, TDoubleFloatIterator, TDoubleIntIterator, TDoubleIterator, TDoubleLongIterator, TDoubleObjectIterator, TFloatDoubleIterator, TFloatFloatIterator, TFloatIntIterator, TFloatIterator, TFloatLongIterator, TFloatObjectIterator, TIntDoubleIterator, TIntFloatIterator, TIntIntIterator, TIntIterator, TIntLongIterator, TIntObjectIterator, TLongDoubleIterator, TLongFloatIterator, TLongIntIterator, TLongIterator, TLongLongIterator, TLongObjectIterator

abstract class TPrimitiveIterator
extends TIterator

Implements all iterator functions for the hashed object set. Subclasses may override objectAtIndex to vary the object returned by calls to next() (e.g. for values, and Map.Entry objects).

Note that iteration is fastest if you forego the calls to hasNext in favor of checking the size of the structure yourself and then call next() that many times:

 Iterator i = collection.iterator();
 for (int size = collection.size(); size-- > 0;) {
   Object o = i.next();
 }
 

You may, of course, use the hasNext(), next() idiom too if you aren't in a performance critical spot.

Field Summary

Fields

Modifier and Type	Field and Description
protected TPrimitiveHash	_hash the collection on which this iterator operates.

Fields inherited from class gnu.trove.TIterator

_expectedSize, _index

Constructor Summary

Constructors

Constructor and Description
TPrimitiveIterator(TPrimitiveHash hash) Creates a TPrimitiveIterator for the specified collection.

Method Summary

Methods

Modifier and Type	Method and Description
protected int	nextIndex() Returns the index of the next value in the data structure or a negative value if the iterator is exhausted.

Methods inherited from class gnu.trove.TIterator

hasNext, moveToNextIndex, remove

Methods inherited from class java.lang.Object

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

Field Detail

_hash

protected final TPrimitiveHash _hash

the collection on which this iterator operates.

Constructor Detail

TPrimitiveIterator

public TPrimitiveIterator(TPrimitiveHash hash)

Creates a TPrimitiveIterator for the specified collection.

Method Detail

nextIndex

protected final int nextIndex()

Returns the index of the next value in the data structure or a negative value if the iterator is exhausted.

Specified by:

nextIndex in class TIterator

Returns:

an int value

Throws:

java.util.ConcurrentModificationException - if the underlying collection's size has been modified since the iterator was created.