forerunnerdb
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A NoSQL document store database for browsers and Node.js.
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<title>JSDoc: Class: KeyValueStore</title>
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<h1 class="page-title">Class: KeyValueStore</h1>
<section>
<header>
<h2>
KeyValueStore
</h2>
</header>
<article>
<div class="container-overview">
<h4 class="name" id="KeyValueStore"><span class="type-signature"></span>new KeyValueStore<span class="signature">(name<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<div class="description">
The key value store class used when storing basic in-memory KV data,
and can be queried for quick retrieval. Mostly used for collection
primary key indexes and lookups.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>name</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last">Optional KV store name.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line12">line 12</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="get"><span class="type-signature"></span>get<span class="signature">(key)</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Gets data stored for the passed key.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key to get data for.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line71">line 71</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
<h4 class="name" id="lookup"><span class="type-signature"></span>lookup<span class="signature">(obj)</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Get / set the primary key.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>obj</code></td>
<td class="type">
<span class="param-type">*</span>
</td>
<td class="description last">A lookup query, can be a string key, an array of string keys,
an object with further query clauses or a regular expression that should be
run against all keys.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line82">line 82</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
<h4 class="name" id="primaryKey"><span class="type-signature"></span>primaryKey<span class="signature">(key)</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Get / set the primary key.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key to set.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line37">line 37</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
<h4 class="name" id="set"><span class="type-signature"></span>set<span class="signature">(key, value)</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Sets data against a key in the store.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key to set data for.</td>
</tr>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">*</span>
</td>
<td class="description last">The value to assign to the key.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line61">line 61</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
<h4 class="name" id="truncate"><span class="type-signature"></span>truncate<span class="signature">()</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Removes all data from the store.
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line50">line 50</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
<h4 class="name" id="uniqueSet"><span class="type-signature"></span>uniqueSet<span class="signature">(key, value)</span><span class="type-signature"> → {Boolean}</span></h4>
<div class="description">
Sets data for the give key in the store only where the given key
does not already have a value in the store.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key to set data for.</td>
</tr>
<tr>
<td class="name"><code>value</code></td>
<td class="type">
<span class="param-type">*</span>
</td>
<td class="description last">The value to assign to the key.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line204">line 204</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
True if data was set or false if data already
exists for the key.
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Boolean</span>
</dd>
</dl>
<h4 class="name" id="unSet"><span class="type-signature"></span>unSet<span class="signature">(key)</span><span class="type-signature"> → {*}</span></h4>
<div class="description">
Removes data for the given key from the store.
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>key</code></td>
<td class="type">
<span class="param-type">String</span>
</td>
<td class="description last">The key to un-set.</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="KeyValueStore.js.html">KeyValueStore.js</a>, <a href="KeyValueStore.js.html#line191">line 191</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">*</span>
</dd>
</dl>
</article>
</section>
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