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package com.sun.enterprise.server.ss.util;

                                                                                                                             
/**
 * When nio application uses Selector.selectedKeys(),
 * ASSelector will return a ASSet instance, where it will wrap 
 * those selection keys used for OP_ACCEPT.
 * Nio application might use Set.iterator() to remove the
 * processed SelectionKey from the selectedSet. We provide 
 * a wrapper Iterator so that even the actual selectedSet in
 * the Selector is modified.
 * 
 * @see ASSelector
 */
public class ASIterator implements java.util.Iterator {
 
    java.util.Iterator it = null;
    ASSet asSet = null;

    public ASIterator(ASSet asSet) {
        this.it = asSet.actualSet().iterator();
        this.asSet = asSet;
    }

    public Object next() {
        return asSet.wrapIfNecessary(it.next());
    }

    public boolean hasNext() {
        return it.hasNext();
    }

    public void remove() {
        it.remove();
    }
}