cd5b63e5b5
zbar was using a 2010 snapshot of its hg tree. Take a new snapshot to get zbar's improvements. [Imported from Fedora 26 tree]
71 lines
2.2 KiB
Java
71 lines
2.2 KiB
Java
/*------------------------------------------------------------------------
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* SymbolIterator
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*
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* Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
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*
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* This file is part of the ZBar Bar Code Reader.
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*
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* The ZBar Bar Code Reader is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* The ZBar Bar Code Reader is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser Public License for more details.
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*
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* You should have received a copy of the GNU Lesser Public License
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* along with the ZBar Bar Code Reader; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* http://sourceforge.net/projects/zbar
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*------------------------------------------------------------------------*/
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package net.sourceforge.zbar;
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/** Iterator over a SymbolSet.
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*/
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public class SymbolIterator
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implements java.util.Iterator<Symbol>
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{
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/** Next symbol to be returned by the iterator. */
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private Symbol current;
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/** SymbolIterators are only created by internal interface methods. */
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SymbolIterator (Symbol first)
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{
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current = first;
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}
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/** Returns true if the iteration has more elements. */
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public boolean hasNext ()
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{
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return(current != null);
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}
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/** Retrieves the next element in the iteration. */
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public Symbol next ()
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{
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if(current == null)
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throw(new java.util.NoSuchElementException
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("access past end of SymbolIterator"));
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Symbol result = current;
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long sym = current.next();
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if(sym != 0)
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current = new Symbol(sym);
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else
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current = null;
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return(result);
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}
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/** Raises UnsupportedOperationException. */
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public void remove ()
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{
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throw(new UnsupportedOperationException
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("SymbolIterator is immutable"));
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}
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}
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