mentat/docs/apis/swift/0.1/Classes.html
Emily Toop c5180656cc
Mentat documentation website using Jekyll (#754)
Steps to building docs locally:

    1. Install Jekyll
    2. cd docs
    3. bundle exec jekyll serve --incremental
    4. open local docs site at http://127.0.0.1:4000/


* basic Jekyll site

* Add docs to documentation site

* Update javadoc to allow for error free builds

* Remove docs for rust dependencies

* Better display examples, about and contributing documentation for Mentat

* Version docs
2018-06-25 11:20:36 +01:00

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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<title>Classes Reference</title>
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<p><a href="index.html"> Docs</a> (74% documented)</p>
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Classes Reference
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<a href="Classes.html">Classes</a>
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<a href="Classes/ColResult.html">ColResult</a>
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<a href="Classes/ColResultIterator.html">ColResultIterator</a>
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<a href="Classes/EntityBuilder.html">EntityBuilder</a>
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<a href="Classes/RelResult.html">RelResult</a>
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<a href="Classes/RelResultIterator.html">RelResultIterator</a>
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<a href="Classes/TxReport.html">TxReport</a>
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<article class="main-content">
<section>
<section class="section">
<h1>Classes</h1>
<p>The following classes are available globally.</p>
</section>
<section class="section task-group-section">
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat10TypedValueC"></a>
<a name="//apple_ref/swift/Class/TypedValue" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat10TypedValueC">TypedValue</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>A wrapper around Mentat&rsquo;s <code>TypedValue</code> Rust object. This class wraps a raw pointer to a Rust <code>TypedValue</code>
struct and provides accessors to the values according to expected result type.</p>
<p>As the FFI functions for fetching values are consuming, this class keeps a copy of the result internally after
fetching so that the value can be referenced several times.</p>
<p>Also, due to the consuming nature of the FFI layer, this class also manages it&rsquo;s raw pointer, nilling it after calling the
FFI conversion function so that the underlying base class can manage cleanup.</p>
<a href="Classes/TypedValue.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">TypedValue</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6MentatAAC"></a>
<a name="//apple_ref/swift/Class/Mentat" class="dashAnchor"></a>
<a class="token" href="#/s:6MentatAAC">Mentat</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>The primary class for accessing Mentat&rsquo;s API.
This class provides all of the basic API that can be found in Mentat&rsquo;s Store struct.
The raw pointer it holds is a pointer to a Store.</p>
<a href="Classes/Mentat.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">Mentat</span> <span class="p">:</span> <span class="kt"><a href="Classes/RustObject.html">RustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat5QueryC"></a>
<a name="//apple_ref/swift/Class/Query" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat5QueryC">Query</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>This class allows you to construct a query, bind values to variables and run those queries against a mentat DB.</p>
<p>This class cannot be created directly, but must be created through <code>Mentat.query(String:)</code>.</p>
<p>The types of values you can bind are</p>
<ul>
<li><code>Int64</code></li>
<li><code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code></li>
<li><code>Keyword</code></li>
<li><code>Bool</code></li>
<li><code>Double</code></li>
<li><code>Date</code></li>
<li><code>String</code></li>
<li><code>UUID</code>.</li>
</ul>
<p>Each bound variable must have a corresponding value in the query string used to create this query.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">query</span> <span class="o">=</span> <span class="s">"""
[:find ?name ?cat
:in ?type
:where
[?c :community/name ?name]
[?c :community/type ?type]
[?c :community/category ?cat]]
"""</span>
<span class="n">mentat</span><span class="o">.</span><span class="nf">query</span><span class="p">(</span><span class="nv">query</span><span class="p">:</span> <span class="n">query</span><span class="p">)</span>
<span class="o">.</span><span class="nf">bind</span><span class="p">(</span><span class="nv">varName</span><span class="p">:</span> <span class="s">"?type"</span><span class="p">,</span> <span class="nv">toKeyword</span><span class="p">:</span> <span class="s">":community.type/website"</span><span class="p">)</span>
<span class="o">.</span><span class="n">run</span> <span class="p">{</span> <span class="n">result</span> <span class="k">in</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<p>Queries can be run and the results returned in a number of different formats. Individual result values are returned as <code>TypedValues</code> and
the format differences relate to the number and structure of those values. The result format is related to the format provided in the query string.</p>
<ul>
<li><code>Rel</code> - This is the default <code>run</code> function and returns a list of rows of values. Queries that wish to have <code>Rel</code> results should format their query strings:
<code>
let query = &quot;&quot;&quot;
[: find ?a ?b ?c
: where ... ]
&quot;&quot;&quot;
mentat.query(query: query)
.run { result in
...
}
</code></li>
<li><code>Scalar</code> - This returns a single value as a result. This can be optional, as the value may not be present. Queries that wish to have <code>Scalar</code> results should format their query strings:
<code>
let query = &quot;&quot;&quot;
[: find ?a .
: where ... ]
&quot;&quot;&quot;
mentat.query(query: query)
.runScalar { result in
...
}
</code></li>
<li><code>Coll</code> - This returns a list of single values as a result. Queries that wish to have <code>Coll</code> results should format their query strings:
<code>
let query = &quot;&quot;&quot;
[: find [?a ...]
: where ... ]
&quot;&quot;&quot;
mentat.query(query: query)
.runColl { result in
...
}
</code></li>
<li><code>Tuple</code> - This returns a single row of values. Queries that wish to have <code>Tuple</code> results should format their query strings:
<code>
let query = &quot;&quot;&quot;
[: find [?a ?b ?c]
: where ... ]
&quot;&quot;&quot;
mentat.query(query: query)
.runTuple { result in
...
}
</code></li>
</ul>
<a href="Classes/Query.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">Query</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat9RelResultC"></a>
<a name="//apple_ref/swift/Class/RelResult" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat9RelResultC">RelResult</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Wraps a <code>Rel</code> result from a Mentat query.
A <code>Rel</code> result is a list of rows of <code>TypedValues</code>.
Individual rows can be fetched or the set can be iterated.</p>
<p>To fetch individual rows from a <code>RelResult</code> use <code>row(Int32)</code>.</p>
<pre class="highlight swift"><code><span class="n">query</span><span class="o">.</span><span class="n">run</span> <span class="p">{</span> <span class="n">rows</span> <span class="k">in</span>
<span class="k">let</span> <span class="nv">row1</span> <span class="o">=</span> <span class="n">rows</span><span class="o">.</span><span class="nf">row</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">row2</span> <span class="o">=</span> <span class="n">rows</span><span class="o">.</span><span class="nf">row</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="p">}</span>
</code></pre>
<p>To iterate over the result set use standard iteration flows.</p>
<pre class="highlight swift"><code><span class="n">query</span><span class="o">.</span><span class="n">run</span> <span class="p">{</span> <span class="n">rows</span> <span class="k">in</span>
<span class="n">rows</span><span class="o">.</span><span class="n">forEach</span> <span class="p">{</span> <span class="n">row</span> <span class="k">in</span>
<span class="o">...</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre>
<p>Note that iteration is consuming and can only be done once.</p>
<a href="Classes/RelResult.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">RelResult</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:6Mentat17RelResultIteratorC"></a>
<a name="//apple_ref/swift/Class/RelResultIterator" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat17RelResultIteratorC">RelResultIterator</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Iterator for <code><a href="Classes/RelResult.html">RelResult</a></code>.</p>
<p>To iterate over the result set use standard iteration flows.</p>
<pre class="highlight swift"><code><span class="n">query</span><span class="o">.</span><span class="n">run</span> <span class="p">{</span> <span class="n">result</span> <span class="k">in</span>
<span class="n">rows</span><span class="o">.</span><span class="n">forEach</span> <span class="p">{</span> <span class="n">row</span> <span class="k">in</span>
<span class="o">...</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre>
<p>Note that iteration is consuming and can only be done once.</p>
<a href="Classes/RelResultIterator.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">RelResultIterator</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span><span class="p">,</span> <span class="kt">IteratorProtocol</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat11TupleResultC"></a>
<a name="//apple_ref/swift/Class/TupleResult" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat11TupleResultC">TupleResult</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Wraps a <code>Tuple</code> result from a Mentat query.
A <code>Tuple</code> result is a list of <code>TypedValues</code>.
Individual values can be fetched as <code>TypedValues</code> or converted into a requested type.</p>
<p>Values can be fetched as one of the following types:</p>
<ul>
<li><code><a href="Classes/TypedValue.html">TypedValue</a></code></li>
<li><code>Int64</code></li>
<li><code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code></li>
<li><code>Keyword</code></li>
<li><code>Bool</code></li>
<li><code>Double</code></li>
<li><code>Date</code></li>
<li><code>String</code></li>
<li><code>UUID</code>.</li>
</ul>
<a href="Classes/TupleResult.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">TupleResult</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:6Mentat9ColResultC"></a>
<a name="//apple_ref/swift/Class/ColResult" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat9ColResultC">ColResult</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Wraps a <code>Coll</code> result from a Mentat query.
A <code>Coll</code> result is a list of rows of single values of type <code><a href="Classes/TypedValue.html">TypedValue</a></code>.
Values for individual rows can be fetched as <code><a href="Classes/TypedValue.html">TypedValue</a></code> or converted into a requested type.</p>
<p>Row values can be fetched as one of the following types:</p>
<ul>
<li><code><a href="Classes/TypedValue.html">TypedValue</a></code></li>
<li><code>Int64</code></li>
<li><code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code></li>
<li><code>Keyword</code></li>
<li><code>Bool</code></li>
<li><code>Double</code></li>
<li><code>Date</code></li>
<li><code>String</code></li>
<li><code>UUID</code>.</li>
</ul>
<a href="Classes/ColResult.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">ColResult</span> <span class="p">:</span> <span class="kt"><a href="Classes/TupleResult.html">TupleResult</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:6Mentat17ColResultIteratorC"></a>
<a name="//apple_ref/swift/Class/ColResultIterator" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat17ColResultIteratorC">ColResultIterator</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Iterator for <code><a href="Classes/ColResult.html">ColResult</a></code>.</p>
<p>To iterate over the result set use standard iteration flows.</p>
<pre class="highlight swift"><code><span class="n">query</span><span class="o">.</span><span class="n">runColl</span> <span class="p">{</span> <span class="n">rows</span> <span class="k">in</span>
<span class="n">rows</span><span class="o">.</span><span class="n">forEach</span> <span class="p">{</span> <span class="n">value</span> <span class="k">in</span>
<span class="o">...</span>
<span class="p">}</span>
<span class="p">}</span>
</code></pre>
<p>Note that iteration is consuming and can only be done once.</p>
<a href="Classes/ColResultIterator.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">ColResultIterator</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span><span class="p">,</span> <span class="kt">IteratorProtocol</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat18OptionalRustObjectC"></a>
<a name="//apple_ref/swift/Class/OptionalRustObject" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat18OptionalRustObjectC">OptionalRustObject</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Base class that wraps an optional <code>OpaquePointer</code> representing a pointer to a Rust object.
This class should be used to wrap Rust pointer that point to consuming structs, that is, calling a function
for that Rust pointer, will cause Rust to destroy the pointer, leaving the Swift pointer dangling.
These classes are responsible for ensuring that their raw <code>OpaquePointer</code> are <code>nil</code>led after calling a consuming
FFI function.
This class provides cleanup functions on deinit, ensuring that all classes
that inherit from it will have their <code>OpaquePointer</code> destroyed when the Swift wrapper is destroyed.
If a class does not override <code>cleanup</code> then a <code>fatalError</code> is thrown.
The optional pointer is managed here such that is the pointer is nil, then the cleanup function is not called
ensuring that we do not double free the pointer on exit.</p>
<a href="Classes/OptionalRustObject.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">OptionalRustObject</span> <span class="p">:</span> <span class="kt">Destroyable</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat10RustObjectC"></a>
<a name="//apple_ref/swift/Class/RustObject" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat10RustObjectC">RustObject</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Base class that wraps an non-optional <code>OpaquePointer</code> representing a pointer to a Rust object.
This class provides cleanup functions on deinit, ensuring that all classes
that inherit from it will have their <code>OpaquePointer</code> destroyed when the Swift wrapper is destroyed.
If a class does not override <code>cleanup</code> then a <code>fatalError</code> is thrown.</p>
<a href="Classes/RustObject.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">RustObject</span> <span class="p">:</span> <span class="kt">Destroyable</span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat13EntityBuilderC"></a>
<a name="//apple_ref/swift/Class/EntityBuilder" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat13EntityBuilderC">EntityBuilder</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>This class wraps a raw pointer that points to a Rust <code>EntityBuilder&lt;InProgressBuilder&gt;</code> object.</p>
<p><code>EntityBuilder</code> provides a programmatic interface to performing assertions on a specific entity.
It provides functions for adding and retracting values for attributes for an entity within
an in progress transaction.</p>
<p>The <code>transact</code> function will transact the assertions that have been added to the <code>EntityBuilder</code>
and pass back the <code><a href="Classes/TxReport.html">TxReport</a></code> that was generated by this transact and the <code><a href="Classes/InProgress.html">InProgress</a></code> that was
used to perform the transact. This enables you to perform further transacts on the same <code><a href="Classes/InProgress.html">InProgress</a></code>
before committing.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">bEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">entityBuilder</span><span class="p">(</span><span class="nv">forEntid</span><span class="p">:</span> <span class="n">bEntid</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="p">(</span><span class="nv">inProgress</span><span class="p">,</span> <span class="nv">report</span><span class="p">)</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">transact</span><span class="p">()</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add </span><span class="se">\(</span><span class="n">aEntid</span><span class="se">)</span><span class="s"> :foo/long 22]]"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<p>The <code>commit</code> function will transact and commit the assertions that have been added to the <code>EntityBuilder</code>.
It will consume the <code><a href="Classes/InProgress.html">InProgress</a></code> used to perform the transact. It returns the <code><a href="Classes/TxReport.html">TxReport</a></code> generated by
the transact. After calling <code>commit</code>, a new transaction must be started by calling <code><a href="Classes/Mentat.html#/s:6MentatAAC16beginTransactionAA10InProgressCyKF">Mentat.beginTransaction()</a></code>
in order to perform further actions.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">entityBuilder</span><span class="p">(</span><span class="nv">forEntid</span><span class="p">:</span> <span class="n">aEntid</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">report</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="o">...</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<a href="Classes/EntityBuilder.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">EntityBuilder</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat10InProgressC"></a>
<a name="//apple_ref/swift/Class/InProgress" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat10InProgressC">InProgress</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>This class wraps a raw pointer that points to a Rust <code>InProgress</code> object.</p>
<p><code>InProgress</code> allows for multiple transacts to be performed in a single transaction.
Each transact performed results in a <code><a href="Classes/TxReport.html">TxReport</a></code> that can be used to gather information
to be used in subsequent transacts.</p>
<p>Committing an <code>InProgress</code> commits all the transacts that have been performed using
that <code>InProgress</code>.</p>
<p>Rolling back and <code>InProgress</code> rolls back all the transacts that have been performed
using that <code>InProgress</code>.</p>
<pre class="highlight swift"><code> <span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">inProgress</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">beginTransaction</span><span class="p">()</span>
<span class="k">let</span> <span class="nv">txReport</span> <span class="o">=</span> <span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add "</span><span class="n">a</span><span class="s">" :foo/long 22]]"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">report</span> <span class="o">=</span> <span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add "</span><span class="n">b</span><span class="s">" :foo/ref </span><span class="se">\(</span><span class="n">aEntid</span><span class="se">)</span><span class="s">] [:db/add "</span><span class="n">b</span><span class="s">" :foo/boolean true]]"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<p><code>InProgress</code> also provides a number of functions to generating an builder to assert datoms programatically.
The two types of builder are <code><a href="Classes/InProgressBuilder.html">InProgressBuilder</a></code> and <code><a href="Classes/EntityBuilder.html">EntityBuilder</a></code>.</p>
<p><code><a href="Classes/InProgressBuilder.html">InProgressBuilder</a></code> takes the current <code>InProgress</code> and provides a programmatic interface to add
and retract values from entities for which there exists an <code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code>. The provided <code>InProgress</code>
is used to perform the transacts.</p>
<pre class="highlight swift"><code> <span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">bEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">inProgress</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">beginTransaction</span><span class="p">()</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">builder</span><span class="p">()</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">bEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">aEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="p">(</span><span class="nv">inProgress</span><span class="p">,</span> <span class="nv">report</span><span class="p">)</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">transact</span><span class="p">()</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add </span><span class="se">\(</span><span class="n">aEntid</span><span class="se">)</span><span class="s"> :foo/long 22]]"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<p><code><a href="Classes/EntityBuilder.html">EntityBuilder</a></code> takes the current <code>InProgress</code> and either an <code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code> or a <code>tempid</code> to provide
a programmatic interface to add and retract values from a specific entity. The provided <code>InProgress</code>
is used to perform the transacts.</p>
<pre class="highlight swift"><code> <span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">transaction</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">beginTransaction</span><span class="p">()</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">transaction</span><span class="o">.</span><span class="nf">builder</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="p">(</span><span class="nv">inProgress</span><span class="p">,</span> <span class="nv">report</span><span class="p">)</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">transact</span><span class="p">()</span>
<span class="k">let</span> <span class="nv">bEntid</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add </span><span class="se">\(</span><span class="n">bEntid</span><span class="se">)</span><span class="s"> :foo/long 22]]"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<a href="Classes/InProgress.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">InProgress</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
</div>
</div>
</section>
</div>
</li>
</ul>
</div>
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:6Mentat17InProgressBuilderC"></a>
<a name="//apple_ref/swift/Class/InProgressBuilder" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat17InProgressBuilderC">InProgressBuilder</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>This class wraps a raw pointer that points to a Rust <code>InProgressBuilder</code> object.</p>
<p><code>InProgressBuilder</code> provides a programmatic interface to performing assertions for entities.
It provides functions for adding and retracting values for attributes for an entity within
an in progress transaction.</p>
<p>The <code>transact</code> function will transact the assertions that have been added to the <code>InProgressBuilder</code>
and pass back the <code><a href="Classes/TxReport.html">TxReport</a></code> that was generated by this transact and the <code><a href="Classes/InProgress.html">InProgress</a></code> that was
used to perform the transact. This enables you to perform further transacts on the same <code><a href="Classes/InProgress.html">InProgress</a></code>
before committing.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">bEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">entityBuilder</span><span class="p">()</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">bEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">aEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="p">(</span><span class="nv">inProgress</span><span class="p">,</span> <span class="nv">report</span><span class="p">)</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">transact</span><span class="p">()</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="nv">transaction</span><span class="p">:</span> <span class="s">"[[:db/add </span><span class="se">\(</span><span class="n">aEntid</span><span class="se">)</span><span class="s"> :foo/long 22]]"</span><span class="p">)</span>
<span class="k">try</span> <span class="n">inProgress</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="o">...</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<p>The <code>commit</code> function will transact and commit the assertions that have been added to the <code><a href="Classes/EntityBuilder.html">EntityBuilder</a></code>.
It will consume the <code><a href="Classes/InProgress.html">InProgress</a></code> used to perform the transact. It returns the <code><a href="Classes/TxReport.html">TxReport</a></code> generated by
the transact. After calling <code>commit</code>, a new transaction must be started by calling <code><a href="Classes/Mentat.html#/s:6MentatAAC16beginTransactionAA10InProgressCyKF">Mentat.beginTransaction()</a></code>
in order to perform further actions.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">bEntid</span> <span class="o">=</span> <span class="n">txReport</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"b"</span><span class="p">)</span>
<span class="k">do</span> <span class="p">{</span>
<span class="k">let</span> <span class="nv">builder</span> <span class="o">=</span> <span class="k">try</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">entityBuilder</span><span class="p">(</span><span class="nv">forEntid</span><span class="p">:</span> <span class="n">aEntid</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">bEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/boolean"</span><span class="p">,</span> <span class="nv">boolean</span><span class="p">:</span> <span class="kc">true</span><span class="p">)</span>
<span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">add</span><span class="p">(</span><span class="nv">entid</span><span class="p">:</span> <span class="n">aEntid</span><span class="p">,</span> <span class="nv">keyword</span><span class="p">:</span> <span class="s">":foo/instant"</span><span class="p">,</span> <span class="nv">date</span><span class="p">:</span> <span class="n">newDate</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">report</span> <span class="o">=</span> <span class="k">try</span> <span class="n">builder</span><span class="o">.</span><span class="nf">commit</span><span class="p">()</span>
<span class="o">...</span>
<span class="p">}</span> <span class="k">catch</span> <span class="p">{</span>
<span class="o">...</span>
<span class="p">}</span>
</code></pre>
<a href="Classes/InProgressBuilder.html" class="slightly-smaller">See more</a>
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<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">InProgressBuilder</span> <span class="p">:</span> <span class="kt"><a href="Classes/OptionalRustObject.html">OptionalRustObject</a></span></code></pre>
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<code>
<a name="/s:6Mentat8TxReportC"></a>
<a name="//apple_ref/swift/Class/TxReport" class="dashAnchor"></a>
<a class="token" href="#/s:6Mentat8TxReportC">TxReport</a>
</code>
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<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>This class wraps a raw pointer that points to a Rust <code>TxReport</code> object.</p>
<p>The <code>TxReport</code> contains information about a successful Mentat transaction.</p>
<p>This information includes:</p>
<ul>
<li><code>txId</code> - the identifier for the transaction.</li>
<li><code>txInstant</code> - the time that the transaction occured.</li>
<li>a map of temporary identifiers provided in the transaction and the <code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code>s that they were mapped to,</li>
</ul>
<p>Access an <code><a href="Typealiases.html#/s:6Mentat5Entida">Entid</a></code> for a temporary identifier that was provided in the transaction can be done through <code>entid(String:)</code>.</p>
<pre class="highlight swift"><code><span class="k">let</span> <span class="nv">report</span> <span class="o">=</span> <span class="n">mentat</span><span class="o">.</span><span class="nf">transact</span><span class="p">(</span><span class="s">"[[:db/add "</span><span class="n">a</span><span class="s">" :foo/boolean true]]"</span><span class="p">)</span>
<span class="k">let</span> <span class="nv">aEntid</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="nf">entid</span><span class="p">(</span><span class="nv">forTempId</span><span class="p">:</span> <span class="s">"a"</span><span class="p">)</span>
</code></pre>
<a href="Classes/TxReport.html" class="slightly-smaller">See more</a>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">open</span> <span class="kd">class</span> <span class="kt">TxReport</span> <span class="p">:</span> <span class="kt"><a href="Classes/RustObject.html">RustObject</a></span></code></pre>
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