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include
xqilla
runtime
ResultImpl.hpp
Go to the documentation of this file.
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/*
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* Copyright (c) 2001-2008
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* DecisionSoft Limited. All rights reserved.
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* Copyright (c) 2004-2008
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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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* $Id$
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*/
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#ifndef _RESULTIMPL_HPP
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#define _RESULTIMPL_HPP
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#include <xqilla/framework/XQillaExport.hpp>
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#include <
xqilla/items/Item.hpp
>
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#include <
xqilla/ast/LocationInfo.hpp
>
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class
DynamicContext
;
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class
Sequence
;
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class
Result
;
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class
ResultBufferImpl;
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class
XQILLA_API
ResultImpl
:
public
LocationInfo
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{
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public
:
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virtual
~ResultImpl
() {}
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Result
*
getResultPointer
() {
return
resultPointer_; }
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void
setResultPointer
(
Result
*p) { resultPointer_ = p; }
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virtual
Item::Ptr
next(
DynamicContext
*context);
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virtual
Item::Ptr
nextOrTail(
Result
&tail,
DynamicContext
*context);
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virtual
Sequence
toSequence(
DynamicContext
*context);
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virtual
ResultBufferImpl *toResultBuffer(
unsigned
int
readCount);
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protected
:
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ResultImpl
(
const
LocationInfo
*o);
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Result
*
resultPointer_
;
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private
:
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ResultImpl
(
const
ResultImpl
&) {};
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ResultImpl
&operator=(
const
ResultImpl
&) {
return
*
this
; };
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};
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#endif
ResultImpl::resultPointer_
Result * resultPointer_
Definition:
ResultImpl.hpp:58
RefCountPointer< const Item >
ResultImpl::getResultPointer
Result * getResultPointer()
Definition:
ResultImpl.hpp:40
Result
A scoped pointer wrapper for the lazily evaluated query result.
Definition:
Result.hpp:39
ResultImpl::~ResultImpl
virtual ~ResultImpl()
Definition:
ResultImpl.hpp:38
Item.hpp
DynamicContext
The execution time dynamic context interface.
Definition:
DynamicContext.hpp:39
LocationInfo
A class that gives records a location in the query.
Definition:
LocationInfo.hpp:31
Sequence
An eagerly evaluated result of a query execution.
Definition:
Sequence.hpp:41
ResultImpl
A lazily evaluated query result.
Definition:
ResultImpl.hpp:35
ResultImpl::setResultPointer
void setResultPointer(Result *p)
Definition:
ResultImpl.hpp:41
LocationInfo.hpp
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