01: /*
02: * Copyright (C) 1999-2004 <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</a>
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2 of the License, or (at your option) any later version.
08: *
09: * This library is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public
15: * License along with this library; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: */
18: package org.mandarax.util;
19:
20: import org.mandarax.kernel.Clause;
21:
22: /**
23: * Iterator for a single collection of clauses.
24: * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
25: * @version 3.4 <7 March 05>
26: * @since 1.0
27: */
28: public final class SingleClauseSetIterator extends
29: AbstractClauseIterator {
30:
31: private java.util.Iterator iterate = null;
32:
33: /**
34: * Constructor.
35: * @param coll a collection of clause sets
36: */
37: public SingleClauseSetIterator(java.util.Collection coll) {
38: super ();
39:
40: buildCollection(coll);
41: }
42:
43: /**
44: * Build the collection.
45: * @param coll a collection of clause sets
46: */
47: private void buildCollection(java.util.Collection coll) {
48: iterate = coll.iterator();
49: }
50:
51: /**
52: * Indicates whether there are more clauses.
53: * @return true if there are more clauses, false otherwise
54: */
55: public boolean hasMoreClauses() {
56: return iterate.hasNext();
57: }
58:
59: /**
60: * Get the next clause.
61: * @return the next clause
62: */
63: public org.mandarax.kernel.Clause nextClause() {
64: return (Clause) iterate.next();
65: }
66: }
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