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    <h1 class="class">Rack::Session::Abstract::SessionHash</h1>

    <div id="description" class="description">
      
<p><a href="SessionHash.html">SessionHash</a> is responsible to lazily load
the session from store.</p>

    </div><!-- description -->

    
    
    
    <div id="5Buntitled-5D" class="documentation-section">
      

      

      

      
      <!-- Attributes -->
      <div id="attribute-method-details" class="method-section section">
        <h3 class="section-header">Attributes</h3>

        
        <div id="id-attribute-method" class="method-detail">
          <a name="id"></a>
          
          <a name="id="></a>
          
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            <span class="method-name">id</span><span
              class="attribute-access-type">[W]</span>
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          <a name="method-c-find"></a>

          
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<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 27</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">find</span>(<span class="ruby-identifier">env</span>)
  <span class="ruby-identifier">env</span>[<span class="ruby-constant">ENV_SESSION_KEY</span>]
<span class="ruby-keyword">end</span></pre>
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<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 39</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">store</span>, <span class="ruby-identifier">env</span>)
  <span class="ruby-ivar">@store</span> = <span class="ruby-identifier">store</span>
  <span class="ruby-ivar">@env</span> = <span class="ruby-identifier">env</span>
  <span class="ruby-ivar">@loaded</span> = <span class="ruby-keyword">false</span>
<span class="ruby-keyword">end</span></pre>
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              class="method-args">(env, session)</span>
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<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 31</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">set</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">session</span>)
  <span class="ruby-identifier">env</span>[<span class="ruby-constant">ENV_SESSION_KEY</span>] = <span class="ruby-identifier">session</span>
<span class="ruby-keyword">end</span></pre>
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          <a name="method-c-set_options"></a>

          
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            <span class="method-name">set_options</span><span
              class="method-args">(env, options)</span>
            <span class="method-click-advice">click to toggle source</span>
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            <div class="method-source-code" id="set_options-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 35</span>
<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">set_options</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">options</span>)
  <span class="ruby-identifier">env</span>[<span class="ruby-constant">ENV_SESSION_OPTIONS_KEY</span>] = <span class="ruby-identifier">options</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-keyword">end</span></pre>
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      <div id="public-instance-method-details" class="method-section section">
        <h3 class="section-header">Public Instance Methods</h3>

      
        <div id="5B-5D-method" class="method-detail ">
          <a name="method-i-5B-5D"></a>

          
          <div class="method-heading">
            <span class="method-name">[]</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="5B-5D-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 59</span>
<span class="ruby-keyword">def</span> <span class="ruby-operator">[]</span>(<span class="ruby-identifier">key</span>)
  <span class="ruby-identifier">load_for_read!</span>
  <span class="ruby-ivar">@data</span>[<span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span>]
<span class="ruby-keyword">end</span></pre>
            </div><!-- 5B-5D-source -->
            
          </div>

          
          <div class="aliases">
            Also aliased as: <a href="SessionHash.html#method-i-fetch">fetch</a>
          </div>
          

          
        </div><!-- 5B-5D-method -->

      
        <div id="5B-5D-3D-method" class="method-detail ">
          <a name="method-i-5B-5D-3D"></a>

          
          <div class="method-heading">
            <span class="method-name">[]=</span><span
              class="method-args">(key, value)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="5B-5D-3D-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 72</span>
<span class="ruby-keyword">def</span> <span class="ruby-operator">[]=</span>(<span class="ruby-identifier">key</span>, <span class="ruby-identifier">value</span>)
  <span class="ruby-identifier">load_for_write!</span>
  <span class="ruby-ivar">@data</span>[<span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span>] = <span class="ruby-identifier">value</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- 5B-5D-3D-source -->
            
          </div>

          
          <div class="aliases">
            Also aliased as: <a href="SessionHash.html#method-i-store">store</a>
          </div>
          

          
        </div><!-- 5B-5D-3D-method -->

      
        <div id="clear-method" class="method-detail ">
          <a name="method-i-clear"></a>

          
          <div class="method-heading">
            <span class="method-name">clear</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="clear-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 78</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">clear</span>
  <span class="ruby-identifier">load_for_write!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">clear</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- clear-source -->
            
          </div>

          

          
        </div><!-- clear-method -->

      
        <div id="delete-method" class="method-detail ">
          <a name="method-i-delete"></a>

          
          <div class="method-heading">
            <span class="method-name">delete</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="delete-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 104</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">delete</span>(<span class="ruby-identifier">key</span>)
  <span class="ruby-identifier">load_for_write!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">delete</span>(<span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- delete-source -->
            
          </div>

          

          
        </div><!-- delete-method -->

      
        <div id="destroy-method" class="method-detail ">
          <a name="method-i-destroy"></a>

          
          <div class="method-heading">
            <span class="method-name">destroy</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="destroy-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 83</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">destroy</span>
  <span class="ruby-identifier">clear</span>
  <span class="ruby-ivar">@id</span> = <span class="ruby-ivar">@store</span>.<span class="ruby-identifier">send</span>(<span class="ruby-value">:destroy_session</span>, <span class="ruby-ivar">@env</span>, <span class="ruby-identifier">id</span>, <span class="ruby-identifier">options</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- destroy-source -->
            
          </div>

          

          
        </div><!-- destroy-method -->

      
        <div id="each-method" class="method-detail ">
          <a name="method-i-each"></a>

          
          <div class="method-heading">
            <span class="method-name">each</span><span
              class="method-args">(&block)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="each-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 54</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">each</span>(&amp;<span class="ruby-identifier">block</span>)
  <span class="ruby-identifier">load_for_read!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">each</span>(&amp;<span class="ruby-identifier">block</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- each-source -->
            
          </div>

          

          
        </div><!-- each-method -->

      
        <div id="empty-3F-method" class="method-detail ">
          <a name="method-i-empty-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">empty?</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="empty-3F-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 127</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">empty?</span>
  <span class="ruby-identifier">load_for_read!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- empty-3F-source -->
            
          </div>

          

          
        </div><!-- empty-3F-method -->

      
        <div id="exists-3F-method" class="method-detail ">
          <a name="method-i-exists-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">exists?</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="exists-3F-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 117</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">exists?</span>
  <span class="ruby-keyword">return</span> <span class="ruby-ivar">@exists</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@exists</span>)
  <span class="ruby-ivar">@data</span> = {}
  <span class="ruby-ivar">@exists</span> = <span class="ruby-ivar">@store</span>.<span class="ruby-identifier">send</span>(<span class="ruby-value">:session_exists?</span>, <span class="ruby-ivar">@env</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- exists-3F-source -->
            
          </div>

          

          
        </div><!-- exists-3F-method -->

      
        <div id="fetch-method" class="method-detail method-alias">
          <a name="method-i-fetch"></a>

          
          <div class="method-heading">
            <span class="method-name">fetch</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
          </div>

          

          
          <div class="aliases">
            Alias for: <a href="SessionHash.html#method-i-5B-5D">[]</a>
          </div>
          
        </div><!-- fetch-method -->

      
        <div id="has_key-3F-method" class="method-detail ">
          <a name="method-i-has_key-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">has_key?</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="has_key-3F-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 65</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">has_key?</span>(<span class="ruby-identifier">key</span>)
  <span class="ruby-identifier">load_for_read!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">has_key?</span>(<span class="ruby-identifier">key</span>.<span class="ruby-identifier">to_s</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- has_key-3F-source -->
            
          </div>

          
          <div class="aliases">
            Also aliased as: <a href="SessionHash.html#method-i-key-3F">key?</a>, <a href="SessionHash.html#method-i-include-3F">include?</a>
          </div>
          

          
        </div><!-- has_key-3F-method -->

      
        <div id="id-method" class="method-detail ">
          <a name="method-i-id"></a>

          
          <div class="method-heading">
            <span class="method-name">id</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="id-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 45</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">id</span>
  <span class="ruby-keyword">return</span> <span class="ruby-ivar">@id</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@loaded</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">instance_variable_defined?</span>(<span class="ruby-value">:@id</span>)
  <span class="ruby-ivar">@id</span> = <span class="ruby-ivar">@store</span>.<span class="ruby-identifier">send</span>(<span class="ruby-value">:extract_session_id</span>, <span class="ruby-ivar">@env</span>)
<span class="ruby-keyword">end</span></pre>
            </div><!-- id-source -->
            
          </div>

          

          
        </div><!-- id-method -->

      
        <div id="include-3F-method" class="method-detail method-alias">
          <a name="method-i-include-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">include?</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
          </div>

          

          
          <div class="aliases">
            Alias for: <a href="SessionHash.html#method-i-has_key-3F">has_key?</a>
          </div>
          
        </div><!-- include-3F-method -->

      
        <div id="inspect-method" class="method-detail ">
          <a name="method-i-inspect"></a>

          
          <div class="method-heading">
            <span class="method-name">inspect</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="inspect-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 109</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">inspect</span>
  <span class="ruby-keyword">if</span> <span class="ruby-identifier">loaded?</span>
    <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">inspect</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-node">&quot;#&lt;#{self.class}:0x#{self.object_id.to_s(16)} not yet loaded&gt;&quot;</span>
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- inspect-source -->
            
          </div>

          

          
        </div><!-- inspect-method -->

      
        <div id="key-3F-method" class="method-detail method-alias">
          <a name="method-i-key-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">key?</span><span
              class="method-args">(key)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
          </div>

          

          
          <div class="aliases">
            Alias for: <a href="SessionHash.html#method-i-has_key-3F">has_key?</a>
          </div>
          
        </div><!-- key-3F-method -->

      
        <div id="keys-method" class="method-detail ">
          <a name="method-i-keys"></a>

          
          <div class="method-heading">
            <span class="method-name">keys</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="keys-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 132</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">keys</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">keys</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- keys-source -->
            
          </div>

          

          
        </div><!-- keys-method -->

      
        <div id="loaded-3F-method" class="method-detail ">
          <a name="method-i-loaded-3F"></a>

          
          <div class="method-heading">
            <span class="method-name">loaded?</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="loaded-3F-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 123</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">loaded?</span>
  <span class="ruby-ivar">@loaded</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- loaded-3F-source -->
            
          </div>

          

          
        </div><!-- loaded-3F-method -->

      
        <div id="merge-21-method" class="method-detail method-alias">
          <a name="method-i-merge-21"></a>

          
          <div class="method-heading">
            <span class="method-name">merge!</span><span
              class="method-args">(hash)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
          </div>

          

          
          <div class="aliases">
            Alias for: <a href="SessionHash.html#method-i-update">update</a>
          </div>
          
        </div><!-- merge-21-method -->

      
        <div id="options-method" class="method-detail ">
          <a name="method-i-options"></a>

          
          <div class="method-heading">
            <span class="method-name">options</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="options-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 50</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">options</span>
  <span class="ruby-ivar">@env</span>[<span class="ruby-constant">ENV_SESSION_OPTIONS_KEY</span>]
<span class="ruby-keyword">end</span></pre>
            </div><!-- options-source -->
            
          </div>

          

          
        </div><!-- options-method -->

      
        <div id="replace-method" class="method-detail ">
          <a name="method-i-replace"></a>

          
          <div class="method-heading">
            <span class="method-name">replace</span><span
              class="method-args">(hash)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="replace-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 99</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">replace</span>(<span class="ruby-identifier">hash</span>)
  <span class="ruby-identifier">load_for_write!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">replace</span>(<span class="ruby-identifier">stringify_keys</span>(<span class="ruby-identifier">hash</span>))
<span class="ruby-keyword">end</span></pre>
            </div><!-- replace-source -->
            
          </div>

          

          
        </div><!-- replace-method -->

      
        <div id="store-method" class="method-detail method-alias">
          <a name="method-i-store"></a>

          
          <div class="method-heading">
            <span class="method-name">store</span><span
              class="method-args">(key, value)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
          </div>

          

          
          <div class="aliases">
            Alias for: <a href="SessionHash.html#method-i-5B-5D-3D">[]=</a>
          </div>
          
        </div><!-- store-method -->

      
        <div id="to_hash-method" class="method-detail ">
          <a name="method-i-to_hash"></a>

          
          <div class="method-heading">
            <span class="method-name">to_hash</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="to_hash-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 88</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_hash</span>
  <span class="ruby-identifier">load_for_read!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">dup</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- to_hash-source -->
            
          </div>

          

          
        </div><!-- to_hash-method -->

      
        <div id="update-method" class="method-detail ">
          <a name="method-i-update"></a>

          
          <div class="method-heading">
            <span class="method-name">update</span><span
              class="method-args">(hash)</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="update-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 93</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">update</span>(<span class="ruby-identifier">hash</span>)
  <span class="ruby-identifier">load_for_write!</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">update</span>(<span class="ruby-identifier">stringify_keys</span>(<span class="ruby-identifier">hash</span>))
<span class="ruby-keyword">end</span></pre>
            </div><!-- update-source -->
            
          </div>

          
          <div class="aliases">
            Also aliased as: <a href="SessionHash.html#method-i-merge-21">merge!</a>
          </div>
          

          
        </div><!-- update-method -->

      
        <div id="values-method" class="method-detail ">
          <a name="method-i-values"></a>

          
          <div class="method-heading">
            <span class="method-name">values</span><span
              class="method-args">()</span>
            <span class="method-click-advice">click to toggle source</span>
          </div>
          

          <div class="method-description">
            
            
            

            
            <div class="method-source-code" id="values-source">
<pre>
<span class="ruby-comment"># File lib/rack/session/abstract/id.rb, line 136</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">values</span>
  <span class="ruby-ivar">@data</span>.<span class="ruby-identifier">values</span>
<span class="ruby-keyword">end</span></pre>
            </div><!-- values-source -->
            
          </div>

          

          
        </div><!-- values-method -->

      
      </div><!-- public-instance-method-details -->
    
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