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<div class="navpath"><a class="el" href="namespacelibdap.html">libdap</a>::<a class="el" href="classlibdap_1_1ConstraintEvaluator.html">ConstraintEvaluator</a>
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<h1>libdap::ConstraintEvaluator Class Reference</h1><!-- doxytag: class="libdap::ConstraintEvaluator" -->Evaluate a constraint expression.
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<code>#include <<a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>></code>
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Collaboration diagram for libdap::ConstraintEvaluator:</div>
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<p><center><img src="classlibdap_1_1ConstraintEvaluator__coll__graph.png" border="0" usemap="#libdap_1_1ConstraintEvaluator__coll__map" alt="Collaboration graph"></center>
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<a href="classlibdap_1_1ConstraintEvaluator-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Classes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><b>function</b></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::vector< <a class="el" href="structlibdap_1_1Clause.html">Clause</a> * ><br class="typebreak">
::const_iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#bffbe592e2282493954bdfe3ceac7445">Clause_citer</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::vector< <a class="el" href="structlibdap_1_1Clause.html">Clause</a> * ><br class="typebreak">
::iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">Clause_iter</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::vector< <a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> * ><br class="typebreak">
::const_iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#9702bcb82a4a27c93665490d651cf816">Constants_citer</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::vector< <a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> * ><br class="typebreak">
::iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#1c38b776ba27bc78a1e484a45bbe8747">Constants_iter</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::list< function ><br class="typebreak">
::const_iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#fabff19845fae4d5ccfcc492b33c79c2">Functions_citer</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::list< function ><br class="typebreak">
::iterator </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#e80dcd9458c825dd656d223e34d8b3b2">Functions_iter</a></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#f4769219d99fe7ec3f4f4d7b1cd560dc">append_clause</a> (btp_func func, <a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> *args)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a clause to a constraint expression. <a href="#f4769219d99fe7ec3f4f4d7b1cd560dc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#2439b21977caf80d57c5faa0342dfcb4">append_clause</a> (bool_func func, <a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> *args)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a clause to a constraint expression. <a href="#2439b21977caf80d57c5faa0342dfcb4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#796b573bb1ec8bbce8c22c4caf58af2e">append_clause</a> (int op, <a class="el" href="classlibdap_1_1rvalue.html">rvalue</a> *arg1, <a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> *arg2)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a clause to a constraint expression. <a href="#796b573bb1ec8bbce8c22c4caf58af2e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#bf7511f38a4c5f8fc0cde0eca91ef338">append_constant</a> (<a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> *btp)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#155da913af4458d96fa60ecd0ecbe377">boolean_expression</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Does the current constraint expression return a boolean value? <a href="#155da913af4458d96fa60ecd0ecbe377"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">Clause_iter</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#81135cc86f8bef397b59577dfa224f62">clause_begin</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">Clause_iter</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#d193b3ca4cef59d2b46c04ab08f4675f">clause_end</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#5c53cfac881da05b7ed6eb6404b0c4f9">clause_value</a> (<a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">Clause_iter</a> &i, <a class="el" href="classlibdap_1_1DDS.html">DDS</a> &dds)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#61250e6c1cec9b2411a529c7fb4efd94">ConstraintEvaluator</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#3d433bb6769cc95fb299249b5e5d74c4">eval_function</a> (<a class="el" href="classlibdap_1_1DDS.html">DDS</a> &dds, const string &dataset)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Evaluate a function-valued constraint expression. <a href="#3d433bb6769cc95fb299249b5e5d74c4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#a0066a57cf00c975f6ccbc2e90c64742">eval_selection</a> (<a class="el" href="classlibdap_1_1DDS.html">DDS</a> &dds, const string &dataset)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Evaluate a boolean-valued constraint expression. This is main method for the evaluator ans is called by the <a class="el" href="classlibdap_1_1BaseType.html#1f45893684a69b50b37817b88230de9f" title="Move data to the net.">BaseType::serialize()</a> methods. <a href="#a0066a57cf00c975f6ccbc2e90c64742"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#dd46ce1d9ef36fa26a2913d8d7c51096">functional_expression</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Does the current constraint expression return a <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a> pointer? <a href="#dd46ce1d9ef36fa26a2913d8d7c51096"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#aeb4a7662178b992d9e36ff1dc0fc2bc">parse_constraint</a> (const string &constraint, <a class="el" href="classlibdap_1_1DDS.html">DDS</a> &dds)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Parse the constraint expression given the current <a class="el" href="classlibdap_1_1DDS.html">DDS</a>. <a href="#aeb4a7662178b992d9e36ff1dc0fc2bc"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#e46662e1cbe013a6f6ad65d2e0c24186">~ConstraintEvaluator</a> ()</td></tr>
<tr><td colspan="2"><div class="groupHeader">External Function Accessors</div></td></tr>
<tr><td colspan="2"><div class="groupText">The Constraint Evaluator carries with it a list of external functions it can use while evaluate a constraint expression. If a constraint contains any of these functions, the entries in the list allow the parser to evaluate it. The functions are of three types: those that return boolean values, those that return real (also called <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a>) values, and those that are applied during evaluation of the project for side effect<p>
<dl class="note" compact><dt><b>Note:</b></dt><dd>The <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#c42a51af20507806f1e04e24ed9cb0ac" title="Add a boolean function to the list.">add_function()</a> methods will replace a function of the same name, so it is possible to overwrite functions in specific handlers if the handler need special behavior to implement one of the standard functions.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd>ce_functions for the standard functions</dd></dl>
These methods are used to manipulate this list of known external functions. <br><br></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#029d3512841dcdb09b46024ff40e8e4e">add_function</a> (const string &name, proj_func f)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a projection function to the list. <a href="#029d3512841dcdb09b46024ff40e8e4e"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#eabb00757399afe777712b43dfdefd27">add_function</a> (const string &name, btp_func f)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a> function to the list. <a href="#eabb00757399afe777712b43dfdefd27"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#c42a51af20507806f1e04e24ed9cb0ac">add_function</a> (const string &name, bool_func f)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Add a boolean function to the list. <a href="#c42a51af20507806f1e04e24ed9cb0ac"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#1f59dced0a1aa7d31f5c46169188a8c3">find_function</a> (const string &name, proj_func *f) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a projection function with a given name in the function list. <a href="#1f59dced0a1aa7d31f5c46169188a8c3"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#065950f0bc91ea2ae3ed06f6cd23e1f9">find_function</a> (const string &name, btp_func *f) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a> function with a given name in the function list. <a href="#065950f0bc91ea2ae3ed06f6cd23e1f9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#c8da439f904b56b42bab23e6d6483a5d">find_function</a> (const string &name, bool_func *f) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Find a Boolean function with a given name in the function list. <a href="#c8da439f904b56b42bab23e6d6483a5d"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Friends</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#bdcdfafb252f26c4af32af89b0f699dc">func_name_is</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00038">38</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="bffbe592e2282493954bdfe3ceac7445"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Clause_citer" ref="bffbe592e2282493954bdfe3ceac7445" args="" -->
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<td class="memname">typedef std::vector<<a class="el" href="structlibdap_1_1Clause.html">Clause</a> *>::const_iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#bffbe592e2282493954bdfe3ceac7445">libdap::ConstraintEvaluator::Clause_citer</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00082">82</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<a class="anchor" name="369a03eac7969bb6955cfc90ababb8aa"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Clause_iter" ref="369a03eac7969bb6955cfc90ababb8aa" args="" -->
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<td class="memname">typedef std::vector<<a class="el" href="structlibdap_1_1Clause.html">Clause</a> *>::iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">libdap::ConstraintEvaluator::Clause_iter</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00083">83</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<a class="anchor" name="9702bcb82a4a27c93665490d651cf816"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Constants_citer" ref="9702bcb82a4a27c93665490d651cf816" args="" -->
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<td class="memname">typedef std::vector<<a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> *>::const_iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#9702bcb82a4a27c93665490d651cf816">libdap::ConstraintEvaluator::Constants_citer</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00085">85</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<a class="anchor" name="1c38b776ba27bc78a1e484a45bbe8747"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Constants_iter" ref="1c38b776ba27bc78a1e484a45bbe8747" args="" -->
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<td class="memname">typedef std::vector<<a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> *>::iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#1c38b776ba27bc78a1e484a45bbe8747">libdap::ConstraintEvaluator::Constants_iter</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00086">86</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<a class="anchor" name="fabff19845fae4d5ccfcc492b33c79c2"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Functions_citer" ref="fabff19845fae4d5ccfcc492b33c79c2" args="" -->
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<td class="memname">typedef std::list<function>::const_iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#fabff19845fae4d5ccfcc492b33c79c2">libdap::ConstraintEvaluator::Functions_citer</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00088">88</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<a class="anchor" name="e80dcd9458c825dd656d223e34d8b3b2"></a><!-- doxytag: member="libdap::ConstraintEvaluator::Functions_iter" ref="e80dcd9458c825dd656d223e34d8b3b2" args="" -->
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<td class="memname">typedef std::list<function>::iterator <a class="el" href="classlibdap_1_1ConstraintEvaluator.html#e80dcd9458c825dd656d223e34d8b3b2">libdap::ConstraintEvaluator::Functions_iter</a> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00089">89</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="61250e6c1cec9b2411a529c7fb4efd94"></a><!-- doxytag: member="libdap::ConstraintEvaluator::ConstraintEvaluator" ref="61250e6c1cec9b2411a529c7fb4efd94" args="()" -->
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<td class="memname">libdap::ConstraintEvaluator::ConstraintEvaluator </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00049">49</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="ce__functions_8cc_source.html#l01016">libdap::register_functions()</a>.</p>
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<a class="anchor" name="e46662e1cbe013a6f6ad65d2e0c24186"></a><!-- doxytag: member="libdap::ConstraintEvaluator::~ConstraintEvaluator" ref="e46662e1cbe013a6f6ad65d2e0c24186" args="()" -->
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<td class="memname">libdap::ConstraintEvaluator::~ConstraintEvaluator </td>
<td>(</td>
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<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00054">54</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="029d3512841dcdb09b46024ff40e8e4e"></a><!-- doxytag: member="libdap::ConstraintEvaluator::add_function" ref="029d3512841dcdb09b46024ff40e8e4e" args="(const string &name, proj_func f)" -->
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<td class="memname">void libdap::ConstraintEvaluator::add_function </td>
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<td class="paramtype">const string & </td>
<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">proj_func </td>
<td class="paramname"> <em>f</em></td><td> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00216">216</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="ConstraintEvaluator_8h_source.html#l00079">func_name_is</a>.</p>
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<a class="anchor" name="eabb00757399afe777712b43dfdefd27"></a><!-- doxytag: member="libdap::ConstraintEvaluator::add_function" ref="eabb00757399afe777712b43dfdefd27" args="(const string &name, btp_func f)" -->
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<td class="memname">void libdap::ConstraintEvaluator::add_function </td>
<td>(</td>
<td class="paramtype">const string & </td>
<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">btp_func </td>
<td class="paramname"> <em>f</em></td><td> </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00207">207</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="ConstraintEvaluator_8h_source.html#l00079">func_name_is</a>.</p>
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<a class="anchor" name="c42a51af20507806f1e04e24ed9cb0ac"></a><!-- doxytag: member="libdap::ConstraintEvaluator::add_function" ref="c42a51af20507806f1e04e24ed9cb0ac" args="(const string &name, bool_func f)" -->
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<td class="memname">void libdap::ConstraintEvaluator::add_function </td>
<td>(</td>
<td class="paramtype">const string & </td>
<td class="paramname"> <em>name</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool_func </td>
<td class="paramname"> <em>f</em></td><td> </td>
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<td></td>
<td>)</td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00198">198</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="ConstraintEvaluator_8h_source.html#l00079">func_name_is</a>.</p>
<p>Referenced by <a class="el" href="ce__functions_8cc_source.html#l01016">libdap::register_functions()</a>.</p>
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<a class="anchor" name="f4769219d99fe7ec3f4f4d7b1cd560dc"></a><!-- doxytag: member="libdap::ConstraintEvaluator::append_clause" ref="f4769219d99fe7ec3f4f4d7b1cd560dc" args="(btp_func func, rvalue_list *args)" -->
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<td class="memname">void libdap::ConstraintEvaluator::append_clause </td>
<td>(</td>
<td class="paramtype">btp_func </td>
<td class="paramname"> <em>func</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> * </td>
<td class="paramname"> <em>args</em></td><td> </td>
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<p>
This function adds a real-valued (<a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a>) function clause to the constraint expression.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>func</em> </td><td>A pointer to a <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a> function from the list of supported functions. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>args</em> </td><td>A list of arguments to that function. </td></tr>
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</dl>
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00142">142</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="2439b21977caf80d57c5faa0342dfcb4"></a><!-- doxytag: member="libdap::ConstraintEvaluator::append_clause" ref="2439b21977caf80d57c5faa0342dfcb4" args="(bool_func func, rvalue_list *args)" -->
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<td class="memname">void libdap::ConstraintEvaluator::append_clause </td>
<td>(</td>
<td class="paramtype">bool_func </td>
<td class="paramname"> <em>func</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> * </td>
<td class="paramname"> <em>args</em></td><td> </td>
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<p>
This function adds a boolean function clause to the constraint expression.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>func</em> </td><td>A pointer to a boolean function from the list of supported functions. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>args</em> </td><td>A list of arguments to that function. </td></tr>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00125">125</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="796b573bb1ec8bbce8c22c4caf58af2e"></a><!-- doxytag: member="libdap::ConstraintEvaluator::append_clause" ref="796b573bb1ec8bbce8c22c4caf58af2e" args="(int op, rvalue *arg1, rvalue_list *arg2)" -->
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<td class="memname">void libdap::ConstraintEvaluator::append_clause </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>op</em>, </td>
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<td class="paramtype"><a class="el" href="classlibdap_1_1rvalue.html">rvalue</a> * </td>
<td class="paramname"> <em>arg1</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="namespacelibdap.html#443d3b7d9ceaa4ec25e5bfcc555ce056">rvalue_list</a> * </td>
<td class="paramname"> <em>arg2</em></td><td> </td>
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<p>
This function adds an operator clause to the constraint expression.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>op</em> </td><td>An integer indicating the operator in use. These values are generated by <code>bison</code>. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>arg1</em> </td><td>A pointer to the argument on the left side of the operator. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>arg2</em> </td><td>A pointer to a list of the arguments on the right side of the operator. </td></tr>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00108">108</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="bf7511f38a4c5f8fc0cde0eca91ef338"></a><!-- doxytag: member="libdap::ConstraintEvaluator::append_constant" ref="bf7511f38a4c5f8fc0cde0eca91ef338" args="(BaseType *btp)" -->
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<td class="memname">void libdap::ConstraintEvaluator::append_constant </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> * </td>
<td class="paramname"> <em>btp</em> </td>
<td> ) </td>
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<p>
The <a class="el" href="classlibdap_1_1DDS.html">DDS</a> maintains a list of <a class="el" href="classlibdap_1_1BaseType.html" title="The basic data type for the DODS DAP types.">BaseType</a> pointers for all the constants that the constraint expression parser generates. These objects are deleted by the <a class="el" href="classlibdap_1_1DDS.html">DDS</a> destructor. Note that there are no list accessors; these constants are never accessed from the list. The list is simply a convenient way to make sure the constants are disposed of properly.<p>
<dl class="todo" compact><dt><b><a class="el" href="todo.html#_todo000010">Todo:</a></b></dt><dd>Update this comment (<a class="el" href="classlibdap_1_1ConstraintEvaluator.html" title="Evaluate a constraint expression.">ConstraintEvaluator</a>, not <a class="el" href="classlibdap_1_1DDS.html">DDS</a>. </dd></dl>
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00157">157</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="155da913af4458d96fa60ecd0ecbe377"></a><!-- doxytag: member="libdap::ConstraintEvaluator::boolean_expression" ref="155da913af4458d96fa60ecd0ecbe377" args="()" -->
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<td class="memname">bool libdap::ConstraintEvaluator::boolean_expression </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00301">301</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="81135cc86f8bef397b59577dfa224f62"></a><!-- doxytag: member="libdap::ConstraintEvaluator::clause_begin" ref="81135cc86f8bef397b59577dfa224f62" args="()" -->
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<td class="memname"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">ConstraintEvaluator::Clause_iter</a> libdap::ConstraintEvaluator::clause_begin </td>
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<p>
Returns the first clause in a parsed constraint expression.
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00070">70</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="d193b3ca4cef59d2b46c04ab08f4675f"></a><!-- doxytag: member="libdap::ConstraintEvaluator::clause_end" ref="d193b3ca4cef59d2b46c04ab08f4675f" args="()" -->
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<td class="memname"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">ConstraintEvaluator::Clause_iter</a> libdap::ConstraintEvaluator::clause_end </td>
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Returns a reference to the end of the list of clauses in a parsed constraint expression. It does not reference the last clause
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00078">78</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="5c53cfac881da05b7ed6eb6404b0c4f9"></a><!-- doxytag: member="libdap::ConstraintEvaluator::clause_value" ref="5c53cfac881da05b7ed6eb6404b0c4f9" args="(Clause_iter &i, DDS &dds)" -->
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<td class="memname">bool libdap::ConstraintEvaluator::clause_value </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classlibdap_1_1ConstraintEvaluator.html#369a03eac7969bb6955cfc90ababb8aa">Clause_iter</a> & </td>
<td class="paramname"> <em>iter</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classlibdap_1_1DDS.html">DDS</a> & </td>
<td class="paramname"> <em>dds</em></td><td> </td>
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Returns the value of the indicated clause of a constraint expression.
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00086">86</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="3d433bb6769cc95fb299249b5e5d74c4"></a><!-- doxytag: member="libdap::ConstraintEvaluator::eval_function" ref="3d433bb6769cc95fb299249b5e5d74c4" args="(DDS &dds, const string &dataset)" -->
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<td class="memname"><a class="el" href="classlibdap_1_1BaseType.html">BaseType</a> * libdap::ConstraintEvaluator::eval_function </td>
<td>(</td>
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<td class="paramname"> <em>dds</em>, </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00285">285</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="Clause_8cc_source.html#l00185">libdap::Clause::value()</a>.</p>
<p>Referenced by <a class="el" href="DODSFilter_8cc_source.html#l01003">libdap::DODSFilter::send_data()</a>.</p>
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<a class="anchor" name="a0066a57cf00c975f6ccbc2e90c64742"></a><!-- doxytag: member="libdap::ConstraintEvaluator::eval_selection" ref="a0066a57cf00c975f6ccbc2e90c64742" args="(DDS &dds, const string &dataset)" -->
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<td class="memname">bool libdap::ConstraintEvaluator::eval_selection </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classlibdap_1_1DDS.html">DDS</a> & </td>
<td class="paramname"> <em>dds</em>, </td>
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<td class="paramtype">const string & </td>
<td class="paramname"> <em>dataset</em></td><td> </td>
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<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dds</em> </td><td>Use these variables when evaluating the expressions. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dataset</em> </td><td>This string is passed to the read() methods. </td></tr>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>True if the expression is true, false otherwise. </dd></dl>
<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00323">323</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="debug_8h_source.html#l00058">DBG</a>.</p>
<p>Referenced by <a class="el" href="Sequence_8cc_source.html#l00592">libdap::Sequence::read_row()</a>, <a class="el" href="Vector_8cc_source.html#l00509">libdap::Vector::serialize()</a>, <a class="el" href="UInt32_8cc_source.html#l00108">libdap::UInt32::serialize()</a>, <a class="el" href="UInt16_8cc_source.html#l00107">libdap::UInt16::serialize()</a>, <a class="el" href="Structure_8cc_source.html#l00287">libdap::Structure::serialize()</a>, <a class="el" href="Str_8cc_source.html#l00118">libdap::Str::serialize()</a>, <a class="el" href="Int32_8cc_source.html#l00116">libdap::Int32::serialize()</a>, <a class="el" href="Int16_8cc_source.html#l00105">libdap::Int16::serialize()</a>, <a class="el" href="Grid_8cc_source.html#l00226">libdap::Grid::serialize()</a>, <a class="el" href="Float64_8cc_source.html#l00114">libdap::Float64::serialize()</a>, <a class="el" href="Float32_8cc_source.html#l00112">libdap::Float32::serialize()</a>, and <a class="el" href="Byte_8cc_source.html#l00120">libdap::Byte::serialize()</a>.</p>
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<a class="anchor" name="1f59dced0a1aa7d31f5c46169188a8c3"></a><!-- doxytag: member="libdap::ConstraintEvaluator::find_function" ref="1f59dced0a1aa7d31f5c46169188a8c3" args="(const string &name, proj_func *f) const " -->
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<td class="paramtype">const string & </td>
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<td class="paramtype">proj_func * </td>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00257">257</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="065950f0bc91ea2ae3ed06f6cd23e1f9"></a><!-- doxytag: member="libdap::ConstraintEvaluator::find_function" ref="065950f0bc91ea2ae3ed06f6cd23e1f9" args="(const string &name, btp_func *f) const " -->
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00241">241</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="c8da439f904b56b42bab23e6d6483a5d"></a><!-- doxytag: member="libdap::ConstraintEvaluator::find_function" ref="c8da439f904b56b42bab23e6d6483a5d" args="(const string &name, bool_func *f) const " -->
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00225">225</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
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<a class="anchor" name="dd46ce1d9ef36fa26a2913d8d7c51096"></a><!-- doxytag: member="libdap::ConstraintEvaluator::functional_expression" ref="dd46ce1d9ef36fa26a2913d8d7c51096" args="()" -->
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00274">274</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="Clause_8cc_source.html#l00139">libdap::Clause::value_clause()</a>.</p>
<p>Referenced by <a class="el" href="DODSFilter_8cc_source.html#l01003">libdap::DODSFilter::send_data()</a>, <a class="el" href="DODSFilter_8cc_source.html#l00799">libdap::DODSFilter::send_dds()</a>, and <a class="el" href="DODSFilter_8cc_source.html#l01186">libdap::DODSFilter::send_ddx()</a>.</p>
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<a class="anchor" name="aeb4a7662178b992d9e36ff1dc0fc2bc"></a><!-- doxytag: member="libdap::ConstraintEvaluator::parse_constraint" ref="aeb4a7662178b992d9e36ff1dc0fc2bc" args="(const string &constraint, DDS &dds)" -->
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<td class="paramkey"></td>
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Evaluate the constraint expression; return the value of the expression. As a side effect, mark the <a class="el" href="classlibdap_1_1DDS.html">DDS</a> so that BaseType's mfuncs can be used to correctly read the variable's value and send it to the client.<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>constraint</em> </td><td>A string containing the constraint expression. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>dds</em> </td><td>The <a class="el" href="classlibdap_1_1DDS.html">DDS</a> that provides the environment within which the constraint is evaluated. </td></tr>
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<dl compact><dt><b>Exceptions:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>Throws</em> </td><td><a class="el" href="classlibdap_1_1Error.html" title="A class for error processing.">Error</a> if the constraint does not parse. </td></tr>
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8cc_source.html#l00359">359</a> of file <a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a>.</p>
<p>References <a class="el" href="ConstraintEvaluator_8cc.html#829e836debe59adfa593dc370b8cb2d0">ce_expr_delete_buffer()</a>, <a class="el" href="ConstraintEvaluator_8cc.html#7a3a151376fbd8a427288eab509bfd06">ce_expr_string()</a>, <a class="el" href="ConstraintEvaluator_8cc.html#955ba7cba10608969e986cd241a15155">ce_expr_switch_to_buffer()</a>, and <a class="el" href="ConstraintEvaluator_8cc.html#ba9ee772d54adb658f5dd2e1b71d3c2b">ce_exprparse()</a>.</p>
<p>Referenced by <a class="el" href="DODSFilter_8cc_source.html#l01003">libdap::DODSFilter::send_data()</a>, <a class="el" href="DODSFilter_8cc_source.html#l00799">libdap::DODSFilter::send_dds()</a>, and <a class="el" href="DODSFilter_8cc_source.html#l01186">libdap::DODSFilter::send_ddx()</a>.</p>
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<hr><h2>Friends And Related Function Documentation</h2>
<a class="anchor" name="bdcdfafb252f26c4af32af89b0f699dc"></a><!-- doxytag: member="libdap::ConstraintEvaluator::func_name_is" ref="bdcdfafb252f26c4af32af89b0f699dc" args="" -->
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<p>Definition at line <a class="el" href="ConstraintEvaluator_8h_source.html#l00079">79</a> of file <a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a>.</p>
<p>Referenced by <a class="el" href="ConstraintEvaluator_8cc_source.html#l00198">add_function()</a>.</p>
</div>
</div><p>
<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="ConstraintEvaluator_8h_source.html">ConstraintEvaluator.h</a><li><a class="el" href="ConstraintEvaluator_8cc_source.html">ConstraintEvaluator.cc</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Oct 7 19:59:10 2009 for libdap++ by
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