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/*
* Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
import java.util.Enumeration;
import java.util.NoSuchElementException;
/**
* A class that enumerates all wakeup criteria in a wakeup condition
*/
class WakeupCriteriaEnumerator implements Enumeration {
// An array used for the current criteria in this object
WakeupCriterion[] criterion = null;
// A pointer to the current criteria
int currentIndex = 0;
// The number of valid criteria in the array, may be less than criterion.length
int length = 0;
WakeupCriteriaEnumerator(WakeupCondition cond, int type) {
this.reset(cond, type);
}
void reset(WakeupCondition cond, int type) {
int i, j;
currentIndex = 0;
length = 0;
if (cond instanceof WakeupCriterion) {
WakeupCriterion crit = (WakeupCriterion)cond;
if (criterion == null || criterion.length < 1) {
criterion = new WakeupCriterion[1];
}
if (crit.triggered || type == WakeupCondition.ALL_ELEMENTS) {
criterion[0] = crit;
length = 1;
}
} else {
if (cond instanceof WakeupAnd) {
WakeupAnd condAnd = (WakeupAnd)cond;
if (criterion == null || criterion.length < condAnd.conditions.length) {
criterion = new WakeupCriterion[condAnd.conditions.length];
}
for (i=0; i