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<h1>Result.hpp</h1><a href="Result_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 2001-2008</span>
<a name="l00003"></a>00003 <span class="comment"> * DecisionSoft Limited. All rights reserved.</span>
@ -36,7 +34,7 @@
<a name="l00016"></a>00016 <span class="comment"> * See the License for the specific language governing permissions and</span>
<a name="l00017"></a>00017 <span class="comment"> * limitations under the License.</span>
<a name="l00018"></a>00018 <span class="comment"> *</span>
<a name="l00019"></a>00019 <span class="comment"> * $Id: Result.hpp 475 2008-01-08 18:47:44Z jpcs $</span>
<a name="l00019"></a>00019 <span class="comment"> * $Id: Result.hpp 531 2008-04-10 23:23:07Z jpcs $</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef _RESULT_HPP</span>
@ -50,79 +48,70 @@
<a name="l00030"></a>00030 <span class="preprocessor">#include &lt;<a class="code" href="ResultImpl_8hpp.html">xqilla/runtime/ResultImpl.hpp</a>&gt;</span>
<a name="l00031"></a>00031 <span class="preprocessor">#include &lt;xqilla/runtime/EmptyResult.hpp&gt;</span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">class </span><a class="code" href="classSequence.html">Sequence</a>;
<a name="l00033"></a>00033 <span class="keyword">class </span><a class="code" href="classSequence.html" title="An eagerly evaluated result of a query execution.">Sequence</a>;
<a name="l00034"></a>00034 <span class="keyword">class </span>SequenceType;
<a name="l00035"></a>00035 <span class="keyword">class </span><a class="code" href="classDynamicContext.html">DynamicContext</a>;
<a name="l00036"></a>00036 <span class="keyword">class </span><a class="code" href="classStaticType.html">StaticType</a>;
<a name="l00035"></a>00035 <span class="keyword">class </span><a class="code" href="classDynamicContext.html" title="The execution time dynamic context interface.">DynamicContext</a>;
<a name="l00036"></a>00036 <span class="keyword">class </span><a class="code" href="classStaticType.html" title="Class that represents the static type of an expression.">StaticType</a>;
<a name="l00037"></a>00037
<a name="l00039"></a><a class="code" href="classResult.html">00039</a> <span class="keyword">class </span>XQILLA_API <a class="code" href="classResult.html">Result</a>
<a name="l00039"></a><a class="code" href="classResult.html">00039</a> <span class="keyword">class </span>XQILLA_API <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 <span class="keyword">public</span>:
<a name="l00042"></a>00042 <a class="code" href="classResult.html">Result</a>(<span class="keyword">const</span> <a class="code" href="classRefCountPointer.html">Item::Ptr</a> &amp;item);
<a name="l00043"></a>00043 <a class="code" href="classResult.html">Result</a>(<span class="keyword">const</span> <a class="code" href="classSequence.html">Sequence</a> &amp;seq);
<a name="l00044"></a>00044 <a class="code" href="classResult.html">Result</a>(<a class="code" href="classResultImpl.html">ResultImpl</a> *impl);
<a name="l00045"></a>00045 <a class="code" href="classResult.html">Result</a>(<span class="keyword">const</span> <a class="code" href="classResult.html">Result</a> &amp;o);
<a name="l00046"></a>00046 <a class="code" href="classResult.html">Result</a> &amp;operator=(<span class="keyword">const</span> <a class="code" href="classResult.html">Result</a> &amp;o);
<a name="l00047"></a>00047 ~<a class="code" href="classResult.html">Result</a>();
<a name="l00042"></a>00042 <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>(<span class="keyword">const</span> <a class="code" href="classRefCountPointer.html" title="Super class of all the reference counted wrappers for Items.">Item::Ptr</a> &amp;item);
<a name="l00043"></a>00043 <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>(<span class="keyword">const</span> <a class="code" href="classSequence.html" title="An eagerly evaluated result of a query execution.">Sequence</a> &amp;seq);
<a name="l00044"></a>00044 <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>(<a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *impl);
<a name="l00045"></a>00045 <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>(<span class="keyword">const</span> <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a> &amp;o);
<a name="l00046"></a>00046 <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a> &amp;operator=(<span class="keyword">const</span> <a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a> &amp;o);
<a name="l00047"></a>00047 ~<a class="code" href="classResult.html" title="A scoped pointer wrapper for the lazily evaluated query result.">Result</a>();
<a name="l00048"></a>00048
<a name="l00050"></a>00050 <a class="code" href="classResultImpl.html">ResultImpl</a> *operator-&gt;();
<a name="l00050"></a>00050 <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *operator-&gt;();
<a name="l00051"></a>00051
<a name="l00053"></a>00053 <span class="keyword">const</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *operator-&gt;() <span class="keyword">const</span>;
<a name="l00053"></a>00053 <span class="keyword">const</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *operator-&gt;() <span class="keyword">const</span>;
<a name="l00054"></a>00054
<a name="l00056"></a>00056 <a class="code" href="classResultImpl.html">ResultImpl</a> *get();
<a name="l00056"></a>00056 <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<span class="keyword">get</span>();
<a name="l00057"></a>00057
<a name="l00059"></a>00059 <span class="keyword">const</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *get() <span class="keyword">const</span>;
<a name="l00059"></a>00059 <span class="keyword">const</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<span class="keyword">get</span>() <span class="keyword">const</span>;
<a name="l00060"></a>00060
<a name="l00062"></a>00062 <span class="keywordtype">bool</span> isNull() <span class="keyword">const</span>;
<a name="l00063"></a>00063
<a name="l00064"></a>00064 EmptyResult* getEmpty() <span class="keyword">const</span>;
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keyword">private</span>:
<a name="l00067"></a>00067 <a class="code" href="classResultImpl.html">ResultImpl</a> *_impl;
<a name="l00067"></a>00067 <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *_impl;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keyword">static</span> EmptyResult _empty;
<a name="l00070"></a>00070 };
<a name="l00071"></a>00071
<a name="l00072"></a><a class="code" href="classResult.html#30f3f0c81e99aaeb1d9efc32d3bf6b7e">00072</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classResult.html#30f3f0c81e99aaeb1d9efc32d3bf6b7e">Result::isNull</a>()<span class="keyword"> const</span>
<a name="l00072"></a><a class="code" href="classResult.html#fb0e13d1fd84752d4dd4f1c250442383">00072</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classResult.html#fb0e13d1fd84752d4dd4f1c250442383" title="Returns true if the underlying pointer is null.">Result::isNull</a>()<span class="keyword"> const</span>
<a name="l00073"></a>00073 <span class="keyword"></span>{
<a name="l00074"></a>00074 <span class="keywordflow">return</span> _impl == 0;
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a><a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">00077</a> <span class="keyword">inline</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *<a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">Result::get</a>()
<a name="l00077"></a><a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">00077</a> <span class="keyword">inline</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715" title="Returns the underlying ResultImpl object.">Result::get</a>()
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 <span class="keywordflow">if</span>(_impl) <span class="keywordflow">return</span> _impl;
<a name="l00080"></a>00080 <span class="keywordflow">return</span> <a class="code" href="classResult.html#f9b31cbb334967b7617313967354959f">getEmpty</a>();
<a name="l00080"></a>00080 <span class="keywordflow">return</span> <a class="code" href="classResult.html#1d33d5326a611a9b1cd9e1c9f908bdb1">getEmpty</a>();
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082
<a name="l00083"></a><a class="code" href="classResult.html#ab233e7b4fa3b64deea22f05dd3f84ac">00083</a> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *<a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">Result::get</a>()<span class="keyword"> const</span>
<a name="l00083"></a><a class="code" href="classResult.html#d699b382cbc38d188036f61bc54754e2">00083</a> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715" title="Returns the underlying ResultImpl object.">Result::get</a>()<span class="keyword"> const</span>
<a name="l00084"></a>00084 <span class="keyword"></span>{
<a name="l00085"></a>00085 <span class="keywordflow">if</span>(_impl) <span class="keywordflow">return</span> _impl;
<a name="l00086"></a>00086 <span class="keywordflow">return</span> <a class="code" href="classResult.html#f9b31cbb334967b7617313967354959f">getEmpty</a>();
<a name="l00086"></a>00086 <span class="keywordflow">return</span> <a class="code" href="classResult.html#1d33d5326a611a9b1cd9e1c9f908bdb1">getEmpty</a>();
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a><a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e">00089</a> <span class="keyword">inline</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *<a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e">Result::operator-&gt;</a>()
<a name="l00089"></a><a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e">00089</a> <span class="keyword">inline</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e" title="Returns the underlying ResultImpl object.">Result::operator-&gt;</a>()
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 <span class="keywordflow">return</span> <a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">get</a>();
<a name="l00091"></a>00091 <span class="keywordflow">return</span> <span class="keyword">get</span>();
<a name="l00092"></a>00092 }
<a name="l00093"></a>00093
<a name="l00094"></a><a class="code" href="classResult.html#7deb54fecc00a9372cad632855afc117">00094</a> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classResultImpl.html">ResultImpl</a> *<a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e">Result::operator-&gt;</a>()<span class="keyword"> const</span>
<a name="l00094"></a><a class="code" href="classResult.html#3218a8e3d12a7d37885711bfb285960c">00094</a> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classResultImpl.html" title="A lazily evaluated query result.">ResultImpl</a> *<a class="code" href="classResult.html#6cc161373ec2b58852f250c1b2c4091e" title="Returns the underlying ResultImpl object.">Result::operator-&gt;</a>()<span class="keyword"> const</span>
<a name="l00095"></a>00095 <span class="keyword"></span>{
<a name="l00096"></a>00096 <span class="keywordflow">return</span> <a class="code" href="classResult.html#98858dfc452cee5c5197bd957f9c0715">get</a>();
<a name="l00096"></a>00096 <span class="keywordflow">return</span> <span class="keyword">get</span>();
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a><a class="code" href="classResult.html#755b44215795808f8cd30f38793c2c96">00099</a> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result</a> &amp;<a class="code" href="classResult.html#755b44215795808f8cd30f38793c2c96">Result::operator=</a>(<span class="keyword">const</span> <a class="code" href="classResult.html">Result</a> &amp;o)
<a name="l00100"></a>00100 {
<a name="l00101"></a>00101 <span class="keywordflow">if</span>(o.<a class="code" href="classResult.html#e5f85fc701dce0fe1a82bc2178eefa6c">_impl</a> != _impl) {
<a name="l00102"></a>00102 <span class="keywordflow">if</span>(_impl) _impl-&gt;decrementRefCount();
<a name="l00103"></a>00103 _impl = o.<a class="code" href="classResult.html#e5f85fc701dce0fe1a82bc2178eefa6c">_impl</a>;
<a name="l00104"></a>00104 <span class="keywordflow">if</span>(_impl) _impl-&gt;<a class="code" href="classReferenceCounted.html#c2b09bdd59353aa7a5c768a6b155da15">incrementRefCount</a>();
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="preprocessor">#endif</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Apr 28 16:40:48 2008 for XQilla Simple API by&nbsp;
<a name="l00099"></a>00099 <span class="preprocessor">#endif</span>
</pre></div></div>
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