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<li class="navelem"><b>iceberg</b></li><li class="navelem"><a class="el" href="classiceberg_1_1Expression.html">Expression</a></li> </ul>
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<div class="summary">
<a href="#pub-types">Public Types</a> &#124;
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="classiceberg_1_1Expression-members.html">List of all members</a> </div>
<div class="headertitle"><div class="title">iceberg::Expression Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div></div>
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<p>Represents a boolean expression tree.
<a href="classiceberg_1_1Expression.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="expression_8h_source.html">expression.h</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for iceberg::Expression:</div>
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<img src="classiceberg_1_1Expression.png" usemap="#iceberg::Expression_map" alt=""/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-types" name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a433076bdc34ce0b6d359313c6c7b8a9c" id="r_a433076bdc34ce0b6d359313c6c7b8a9c"><td class="memItemLeft" align="right" valign="top"><a id="a433076bdc34ce0b6d359313c6c7b8a9c" name="a433076bdc34ce0b6d359313c6c7b8a9c"></a>enum class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1Expression.html#a433076bdc34ce0b6d359313c6c7b8a9c">Operation</a> { <br />
&#160;&#160;<b>kTrue</b>
, <b>kFalse</b>
, <b>kIsNull</b>
, <b>kNotNull</b>
, <br />
&#160;&#160;<b>kIsNan</b>
, <b>kNotNan</b>
, <b>kLt</b>
, <b>kLtEq</b>
, <br />
&#160;&#160;<b>kGt</b>
, <b>kGtEq</b>
, <b>kEq</b>
, <b>kNotEq</b>
, <br />
&#160;&#160;<b>kIn</b>
, <b>kNotIn</b>
, <b>kNot</b>
, <b>kAnd</b>
, <br />
&#160;&#160;<b>kOr</b>
, <b>kStartsWith</b>
, <b>kNotStartsWith</b>
, <b>kCount</b>
, <br />
&#160;&#160;<b>kCountNull</b>
, <b>kCountStar</b>
, <b>kMax</b>
, <b>kMin</b>
<br />
}</td></tr>
<tr class="memdesc:a433076bdc34ce0b6d359313c6c7b8a9c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Operation types for expressions. <br /></td></tr>
<tr class="separator:a433076bdc34ce0b6d359313c6c7b8a9c"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a5a16ee5d023305b50e4a2216b4047eff" id="r_a5a16ee5d023305b50e4a2216b4047eff"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="classiceberg_1_1Expression.html#a433076bdc34ce0b6d359313c6c7b8a9c">Operation</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1Expression.html#a5a16ee5d023305b50e4a2216b4047eff">op</a> () const =0</td></tr>
<tr class="memdesc:a5a16ee5d023305b50e4a2216b4047eff"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the operation for an expression node. <br /></td></tr>
<tr class="separator:a5a16ee5d023305b50e4a2216b4047eff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7ce9433b8cc063b06ac6371d6d56815c" id="r_a7ce9433b8cc063b06ac6371d6d56815c"><td class="memItemLeft" align="right" valign="top">virtual Result&lt; std::shared_ptr&lt; <a class="el" href="classiceberg_1_1Expression.html">Expression</a> &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1Expression.html#a7ce9433b8cc063b06ac6371d6d56815c">Negate</a> () const</td></tr>
<tr class="memdesc:a7ce9433b8cc063b06ac6371d6d56815c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the negation of this expression, equivalent to not(this). <br /></td></tr>
<tr class="separator:a7ce9433b8cc063b06ac6371d6d56815c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5f62190ba4e74757afb0fba05acb1e6a" id="r_a5f62190ba4e74757afb0fba05acb1e6a"><td class="memItemLeft" align="right" valign="top">virtual bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1Expression.html#a5f62190ba4e74757afb0fba05acb1e6a">Equals</a> (const <a class="el" href="classiceberg_1_1Expression.html">Expression</a> &amp;other) const</td></tr>
<tr class="memdesc:a5f62190ba4e74757afb0fba05acb1e6a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns whether this expression will accept the same values as another. <br /></td></tr>
<tr class="separator:a5f62190ba4e74757afb0fba05acb1e6a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2e9c204f698d069ebc0fefb9e5269ab6" id="r_a2e9c204f698d069ebc0fefb9e5269ab6"><td class="memItemLeft" align="right" valign="top">std::string&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1Expression.html#a2e9c204f698d069ebc0fefb9e5269ab6">ToString</a> () const override</td></tr>
<tr class="memdesc:a2e9c204f698d069ebc0fefb9e5269ab6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get a user-readable string representation. <br /></td></tr>
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<tr class="memitem:a96e614d02433117161d21989f7ff1257" id="r_a96e614d02433117161d21989f7ff1257"><td class="memItemLeft" align="right" valign="top"><a id="a96e614d02433117161d21989f7ff1257" name="a96e614d02433117161d21989f7ff1257"></a>
virtual bool&#160;</td><td class="memItemRight" valign="bottom"><b>is_unbound_predicate</b> () const</td></tr>
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virtual bool&#160;</td><td class="memItemRight" valign="bottom"><b>is_bound_predicate</b> () const</td></tr>
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virtual bool&#160;</td><td class="memItemRight" valign="bottom"><b>is_unbound_aggregate</b> () const</td></tr>
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virtual bool&#160;</td><td class="memItemRight" valign="bottom"><b>is_bound_aggregate</b> () const</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Represents a boolean expression tree. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="a5f62190ba4e74757afb0fba05acb1e6a" name="a5f62190ba4e74757afb0fba05acb1e6a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a5f62190ba4e74757afb0fba05acb1e6a">&#9670;&#160;</a></span>Equals()</h2>
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<td class="memname">virtual bool iceberg::Expression::Equals </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classiceberg_1_1Expression.html">Expression</a> &amp;&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
<td> const</td>
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<p>Returns whether this expression will accept the same values as another. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>another expression </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true if the expressions are equivalent </dd></dl>
<p>Reimplemented in <a class="el" href="classiceberg_1_1True.html#a53e99598cb32cb1d709838ba1a154a26">iceberg::True</a>, <a class="el" href="classiceberg_1_1False.html#aabcd9ebfb3e6cec22fa5bd45aedfacc6">iceberg::False</a>, <a class="el" href="classiceberg_1_1And.html#aa1b15d267e484f7b4c32eb5b7dc647f5">iceberg::And</a>, <a class="el" href="classiceberg_1_1Or.html#acbd078a10cd61ba2d76788b42966b197">iceberg::Or</a>, <a class="el" href="classiceberg_1_1Not.html#a5f9793238a0dd8b701b8f3f6dbc613b1">iceberg::Not</a>, <a class="el" href="classiceberg_1_1BoundUnaryPredicate.html#a3ad39a4f9541ec0eeb24611213faae43">iceberg::BoundUnaryPredicate</a>, <a class="el" href="classiceberg_1_1BoundLiteralPredicate.html#aa92ed21cf7fd9e7ada37ad9eb91a9977">iceberg::BoundLiteralPredicate</a>, and <a class="el" href="classiceberg_1_1BoundSetPredicate.html#a06619576f7388681a6f0c04432b61e4e">iceberg::BoundSetPredicate</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7ce9433b8cc063b06ac6371d6d56815c">&#9670;&#160;</a></span>Negate()</h2>
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<td class="memname">virtual Result&lt; std::shared_ptr&lt; <a class="el" href="classiceberg_1_1Expression.html">Expression</a> &gt; &gt; iceberg::Expression::Negate </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the negation of this expression, equivalent to not(this). </p>
<p>Reimplemented in <a class="el" href="classiceberg_1_1True.html#a5849e24284fb2c87b234379e371a13ce">iceberg::True</a>, <a class="el" href="classiceberg_1_1False.html#a8f3630c6ec3a6a4eef65f3e680628004">iceberg::False</a>, <a class="el" href="classiceberg_1_1And.html#a24a38d7c3faaac99a71b51e6dfb4b0d6">iceberg::And</a>, <a class="el" href="classiceberg_1_1Or.html#ab102b67d93ba34588fa0f0b77ea9243f">iceberg::Or</a>, <a class="el" href="classiceberg_1_1Not.html#a7d347d1bfbb07a9678e002bb2eed1495">iceberg::Not</a>, <a class="el" href="classiceberg_1_1UnboundPredicateImpl.html#ac2729f36f0bc8b2e1ac71ae6221563e6">iceberg::UnboundPredicateImpl&lt; B &gt;</a>, <a class="el" href="classiceberg_1_1BoundUnaryPredicate.html#ac15e4e053e268ecb0a0e3d0297bd6ca8">iceberg::BoundUnaryPredicate</a>, <a class="el" href="classiceberg_1_1BoundLiteralPredicate.html#a8f0ed718c05bc6c94e653819e099e091">iceberg::BoundLiteralPredicate</a>, <a class="el" href="classiceberg_1_1BoundSetPredicate.html#ab82330a3d48d9b139764ae3972c0c271">iceberg::BoundSetPredicate</a>, and <a class="el" href="classiceberg_1_1UnboundPredicate.html#a7c77c2d962a6965ca484a8b74cbf4b0d">iceberg::UnboundPredicate</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a5a16ee5d023305b50e4a2216b4047eff">&#9670;&#160;</a></span>op()</h2>
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<td class="memname">virtual <a class="el" href="classiceberg_1_1Expression.html#a433076bdc34ce0b6d359313c6c7b8a9c">Operation</a> iceberg::Expression::op </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Returns the operation for an expression node. </p>
<p>Implemented in <a class="el" href="classiceberg_1_1Aggregate.html#a04e2d2492b3a5580b85a6663f32fd251">iceberg::Aggregate&lt; T &gt;</a>, <a class="el" href="classiceberg_1_1Aggregate.html#a04e2d2492b3a5580b85a6663f32fd251">iceberg::Aggregate&lt; BoundTerm &gt;</a>, <a class="el" href="classiceberg_1_1Aggregate.html#a04e2d2492b3a5580b85a6663f32fd251">iceberg::Aggregate&lt; UnboundTerm&lt; B &gt; &gt;</a>, <a class="el" href="classiceberg_1_1True.html#aa40701eb9c6cc8b57130643a1000ad14">iceberg::True</a>, <a class="el" href="classiceberg_1_1False.html#aaccc2ef838f10e74398e471743e6fb23">iceberg::False</a>, <a class="el" href="classiceberg_1_1And.html#a8d680f4240a81b08ed533e9bf89479c9">iceberg::And</a>, <a class="el" href="classiceberg_1_1Or.html#afe9e736e8ba2e8b5748941f2b349fc6d">iceberg::Or</a>, <a class="el" href="classiceberg_1_1Not.html#a5ca78cdd707666ff271492a8c45f37ec">iceberg::Not</a>, <a class="el" href="classiceberg_1_1Predicate.html#a149508fc8ddf4cd5d4da0ae9f4c1c80f">iceberg::Predicate&lt; T &gt;</a>, <a class="el" href="classiceberg_1_1Predicate.html#a149508fc8ddf4cd5d4da0ae9f4c1c80f">iceberg::Predicate&lt; BoundTerm &gt;</a>, and <a class="el" href="classiceberg_1_1Predicate.html#a149508fc8ddf4cd5d4da0ae9f4c1c80f">iceberg::Predicate&lt; UnboundTerm&lt; B &gt; &gt;</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2e9c204f698d069ebc0fefb9e5269ab6">&#9670;&#160;</a></span>ToString()</h2>
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<td> const</td>
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<p>Get a user-readable string representation. </p>
<p>Implements <a class="el" href="classiceberg_1_1util_1_1Formattable.html#a79618aca5b3bf63610d9c87ac5ae0386">iceberg::util::Formattable</a>.</p>
<p>Reimplemented in <a class="el" href="classiceberg_1_1True.html#ab2e3e9e09c33a7f8d614b069b1c0ef84">iceberg::True</a>, <a class="el" href="classiceberg_1_1False.html#a7c87482982da354f63c8b09bab9bde35">iceberg::False</a>, <a class="el" href="classiceberg_1_1Or.html#aec794d22f9863e170a65d9a1b89c9655">iceberg::Or</a>, <a class="el" href="classiceberg_1_1Not.html#a64edca3880c4eee4918b7c32cfa25d83">iceberg::Not</a>, and <a class="el" href="classiceberg_1_1UnboundPredicateImpl.html#a77b0726d46f4ef179c83064e010c14a4">iceberg::UnboundPredicateImpl&lt; B &gt;</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>iceberg/expression/<a class="el" href="expression_8h_source.html">expression.h</a></li>
</ul>
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