49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/*
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* Copyright (c) 2001-2007
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2007
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* Oracle. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Id: LazySequenceResult.hpp,v 1.9 2007/11/28 13:13:25 jpcs Exp $
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*/
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#ifndef _LAZYSEQUENCERESULT_HPP
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#define _LAZYSEQUENCERESULT_HPP
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#include <xqilla/runtime/ResultImpl.hpp>
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#include <xqilla/runtime/Sequence.hpp>
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class XQILLA_API LazySequenceResult : public ResultImpl
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{
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public:
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LazySequenceResult(const LocationInfo *o, DynamicContext *context);
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/// Get the next item from the iterator
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virtual Item::Ptr next(DynamicContext *context);
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/// Called lazily to get the Sequence to iterate over
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virtual void getResult(Sequence &toFill, DynamicContext *context) const = 0;
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/// Cast operator to a Sequence
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virtual Sequence toSequence(DynamicContext *context = 0);
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private:
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bool toInit_;
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Sequence::iterator it_;
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Sequence seq_;
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};
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#endif
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