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Obligation.html
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Obligation.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>
Module: Concurrent::Concern::Obligation
— Concurrent Ruby
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<span class="title">Obligation</span>
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<div id="content"><h1>Module: Concurrent::Concern::Obligation
</h1>
<div class="box_info">
<dl>
<dt>Includes:</dt>
<dd><span class='object_link'><a href="Dereferenceable.html" title="Concurrent::Concern::Dereferenceable (module)">Dereferenceable</a></span></dd>
</dl>
<dl>
<dt>Included in:</dt>
<dd><span class='object_link'><a href="../Delay.html" title="Concurrent::Delay (class)">Delay</a></span>, <span class='object_link'><a href="../IVar.html" title="Concurrent::IVar (class)">IVar</a></span></dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>lib/concurrent/concern/obligation.rb</dd>
</dl>
</div>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#complete%3F-instance_method" title="#complete? (instance method)">#<strong>complete?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Has the obligation completed processing?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#exception-instance_method" title="#exception (instance method)">#<strong>exception</strong>(*args) ⇒ undocumented </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#fulfilled%3F-instance_method" title="#fulfilled? (instance method)">#<strong>fulfilled?</strong> ⇒ Boolean </a>
(also: #realized?)
</span>
<span class="summary_desc"><div class='inline'><p>Has the obligation been fulfilled?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#incomplete%3F-instance_method" title="#incomplete? (instance method)">#<strong>incomplete?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Is the obligation still awaiting completion of processing?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#pending%3F-instance_method" title="#pending? (instance method)">#<strong>pending?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Is obligation completion still pending?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#reason-instance_method" title="#reason (instance method)">#<strong>reason</strong> ⇒ Exception </a>
</span>
<span class="summary_desc"><div class='inline'><p>If an exception was raised during processing this will return the exception object.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#rejected%3F-instance_method" title="#rejected? (instance method)">#<strong>rejected?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Has the obligation been rejected?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#state-instance_method" title="#state (instance method)">#<strong>state</strong> ⇒ Symbol </a>
</span>
<span class="summary_desc"><div class='inline'><p>The current state of the obligation.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#unscheduled%3F-instance_method" title="#unscheduled? (instance method)">#<strong>unscheduled?</strong> ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Is the obligation still unscheduled?.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#value-instance_method" title="#value (instance method)">#<strong>value</strong>(timeout = nil) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>The current value of the obligation.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#value!-instance_method" title="#value! (instance method)">#<strong>value!</strong>(timeout = nil) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>The current value of the obligation.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#wait-instance_method" title="#wait (instance method)">#<strong>wait</strong>(timeout = nil) ⇒ Obligation </a>
</span>
<span class="summary_desc"><div class='inline'><p>Wait until obligation is complete or the timeout has been reached.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#wait!-instance_method" title="#wait! (instance method)">#<strong>wait!</strong>(timeout = nil) ⇒ Obligation </a>
(also: #no_error!)
</span>
<span class="summary_desc"><div class='inline'><p>Wait until obligation is complete or the timeout is reached.</p>
</div></span>
</li>
</ul>
<div id="instance_method_details" class="method_details_list">
<h2>Instance Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="complete?-instance_method">
#<strong>complete?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Has the obligation completed processing?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
49
50
51</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 49</span>
<span class='kw'>def</span> <span class='id identifier rubyid_complete?'>complete?</span>
<span class='lbracket'>[</span><span class='symbol'>:fulfilled</span><span class='comma'>,</span> <span class='symbol'>:rejected</span><span class='rbracket'>]</span><span class='period'>.</span><span class='id identifier rubyid_include?'>include?</span> <span class='id identifier rubyid_state'>state</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="exception-instance_method">
#<strong>exception</strong>(*args) ⇒ <tt>undocumented</tt>
</h3><div class="docstring">
<div class="discussion">
</div>
</div>
<div class="tags">
<div class="examples">
<p class="tag_title">Examples:</p>
<p class="example_title"><div class='inline'><p>allows Obligation to be risen</p>
</div></p>
<pre class="example code"><code><span class='id identifier rubyid_rejected_ivar'>rejected_ivar</span> <span class='op'>=</span> <span class='const'>Ivar</span><span class='period'>.</span><span class='id identifier rubyid_new'>new</span><span class='period'>.</span><span class='id identifier rubyid_fail'>fail</span>
<span class='id identifier rubyid_raise'>raise</span> <span class='id identifier rubyid_rejected_ivar'>rejected_ivar</span></code></pre>
</div>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
126
127
128
129</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 126</span>
<span class='kw'>def</span> <span class='id identifier rubyid_exception'>exception</span><span class='lparen'>(</span><span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span>
<span class='id identifier rubyid_raise'>raise</span> <span class='tstring'><span class='tstring_beg'>'</span><span class='tstring_content'>obligation is not rejected</span><span class='tstring_end'>'</span></span> <span class='kw'>unless</span> <span class='id identifier rubyid_rejected?'>rejected?</span>
<span class='id identifier rubyid_reason'>reason</span><span class='period'>.</span><span class='id identifier rubyid_exception'>exception</span><span class='lparen'>(</span><span class='op'>*</span><span class='id identifier rubyid_args'>args</span><span class='rparen'>)</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="fulfilled?-instance_method">
#<strong>fulfilled?</strong> ⇒ <tt>Boolean</tt>
<span class="aliases">Also known as:
<span class="names"><span id='realized?-instance_method'>realized?</span></span>
</span>
</h3><div class="docstring">
<div class="discussion">
<p>Has the obligation been fulfilled?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
20
21
22</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 20</span>
<span class='kw'>def</span> <span class='id identifier rubyid_fulfilled?'>fulfilled?</span>
<span class='id identifier rubyid_state'>state</span> <span class='op'>==</span> <span class='symbol'>:fulfilled</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="incomplete?-instance_method">
#<strong>incomplete?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Is the obligation still awaiting completion of processing?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
56
57
58</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 56</span>
<span class='kw'>def</span> <span class='id identifier rubyid_incomplete?'>incomplete?</span>
<span class='op'>!</span> <span class='id identifier rubyid_complete?'>complete?</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="pending?-instance_method">
#<strong>pending?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Is obligation completion still pending?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
35
36
37</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 35</span>
<span class='kw'>def</span> <span class='id identifier rubyid_pending?'>pending?</span>
<span class='id identifier rubyid_state'>state</span> <span class='op'>==</span> <span class='symbol'>:pending</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="reason-instance_method">
#<strong>reason</strong> ⇒ <tt>Exception</tt>
</h3><div class="docstring">
<div class="discussion">
<p>If an exception was raised during processing this will return the
exception object. Will return <code>nil</code> when the state is pending or if
the obligation has been successfully fulfilled.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Exception</tt>)</span>
—
<div class='inline'><p>the exception raised during processing or <code>nil</code></p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
119
120
121</pre>
</td>
<td>
<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 119</span>
<span class='kw'>def</span> <span class='id identifier rubyid_reason'>reason</span>
<span class='id identifier rubyid_synchronize'>synchronize</span> <span class='lbrace'>{</span> <span class='ivar'>@reason</span> <span class='rbrace'>}</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="rejected?-instance_method">
#<strong>rejected?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Has the obligation been rejected?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
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<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 28</span>
<span class='kw'>def</span> <span class='id identifier rubyid_rejected?'>rejected?</span>
<span class='id identifier rubyid_state'>state</span> <span class='op'>==</span> <span class='symbol'>:rejected</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="state-instance_method">
#<strong>state</strong> ⇒ <tt>Symbol</tt>
</h3><div class="docstring">
<div class="discussion">
<p>The current state of the obligation.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Symbol</tt>)</span>
—
<div class='inline'><p>the current state</p>
</div>
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</ul>
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<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 110</span>
<span class='kw'>def</span> <span class='id identifier rubyid_state'>state</span>
<span class='id identifier rubyid_synchronize'>synchronize</span> <span class='lbrace'>{</span> <span class='ivar'>@state</span> <span class='rbrace'>}</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="unscheduled?-instance_method">
#<strong>unscheduled?</strong> ⇒ <tt>Boolean</tt>
</h3><div class="docstring">
<div class="discussion">
<p>Is the obligation still unscheduled?</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Boolean</tt>)</span>
</li>
</ul>
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<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 42</span>
<span class='kw'>def</span> <span class='id identifier rubyid_unscheduled?'>unscheduled?</span>
<span class='id identifier rubyid_state'>state</span> <span class='op'>==</span> <span class='symbol'>:unscheduled</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="value-instance_method">
#<strong>value</strong>(timeout = nil) ⇒ <tt>Object</tt>
</h3><div class="docstring">
<div class="discussion">
<p>The current value of the obligation. Will be <code>nil</code> while the state is
pending or the operation has been rejected.</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>timeout</span>
<span class='type'>(<tt>Numeric</tt>)</span>
<em class="default">(defaults to: <tt>nil</tt>)</em>
—
<div class='inline'><p>the maximum time in seconds to wait.</p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt>Object</tt>)</span>
—
<div class='inline'><p>see Dereferenceable#deref</p>
</div>
</li>
</ul>
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<pre class="code"><span class="info file"># File 'lib/concurrent/concern/obligation.rb', line 65</span>
<span class='kw'>def</span> <span class='id identifier rubyid_value'>value</span><span class='lparen'>(</span><span class='id identifier rubyid_timeout'>timeout</span> <span class='op'>=</span> <span class='kw'>nil</span><span class='rparen'>)</span>
<span class='id identifier rubyid_wait'>wait</span> <span class='id identifier rubyid_timeout'>timeout</span>
<span class='id identifier rubyid_deref'>deref</span>
<span class='kw'>end</span></pre>
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<div class="method_details ">
<h3 class="signature " id="value!-instance_method">
#<strong>value!</strong>(timeout = nil) ⇒ <tt>Object</tt>