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<li><a href="../rdf/redland/node_rb.html?TB_iframe=true&height=550&width=785" class="thickbox" title="rdf/redland/node.rb">rdf/redland/node.rb</a></li>
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<p class="link"><a href="Node.html">Redland::Node</a></p>
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<li><a href="#method-c-from_node">::from_node</a></li>
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<h1 class="class">Redland::Literal</h1>
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<div id="description" class="description">
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<p>A literal node</p>
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<div id="5Buntitled-5D" class="documentation-section"><!-- Attributes -->
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<div id="attribute-method-details" class="method-section section">
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<h3 class="section-header">Attributes</h3>
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<div id="language-attribute-method" class="method-detail"><a name="language" id="language"></a>
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<div class="method-heading attribute-method-heading"><span class="method-name">language</span><span class="attribute-access-type">[R]</span></div>
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<div class="method-description">
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<p>the language of the literal</p>
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<div id="value-attribute-method" class="method-detail"><a name="value" id="value"></a>
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<div class="method-heading attribute-method-heading"><span class="method-name">value</span><span class="attribute-access-type">[R]</span></div>
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<div class="method-description">
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<p>the string value of the literal</p>
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<!-- attribute-method-details -->
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<div id="public-class-method-details" class="method-section section">
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<h3 class="section-header">Public Class Methods</h3>
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<div id="from_node-method" class="method-detail"><a name="method-c-from_node" id="method-c-from_node"></a>
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<div class="method-heading"><span class="method-name">from_node</span><span class="method-args">(node)</span> <span class="method-click-advice">click to toggle source</span></div>
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<div class="method-description">
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<p>create a literal from another <a href="Node.html">Node</a></p>
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<div class="method-source-code" id="from_node-source">
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<span class="ruby-comment"># File rdf/redland/node.rb, line 246</span>
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<span class="ruby-keyword">def</span> <span class="ruby-constant">Literal</span>.<span class="ruby-identifier">from_node</span>(<span class="ruby-identifier">node</span>)
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<span class="ruby-identifier">lang</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_node_get_literal_value_language</span>(<span class="ruby-identifier">node</span>) <span class="ruby-keyword">if</span> <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_node_get_literal_value_language</span>(<span class="ruby-identifier">node</span>)
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<span class="ruby-identifier">str</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_node_get_literal_value</span>(<span class="ruby-identifier">node</span>)
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<span class="ruby-identifier">hash_uri</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_node_get_literal_value_datatype_uri</span>(<span class="ruby-identifier">node</span>)
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<span class="ruby-identifier">hash_uri</span> = <span class="ruby-constant">Uri</span>.<span class="ruby-identifier">new</span>(<span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_uri_to_string</span>(<span class="ruby-identifier">hash_uri</span>)) <span class="ruby-keyword">if</span> <span class="ruby-identifier">hash_uri</span>
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<span class="ruby-keyword">return</span> <span class="ruby-constant">Literal</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">str</span>,<span class="ruby-identifier">lang</span>,<span class="ruby-identifier">hash_uri</span>)
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<span class="ruby-keyword">end</span>
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<!-- from_node-source --></div>
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<!-- from_node-method -->
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<div id="from_xml-method" class="method-detail"><a name="method-c-from_xml" id="method-c-from_xml"></a>
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<div class="method-heading"><span class="method-name">from_xml</span><span class="method-args">(str,lang=nil)</span> <span class="method-click-advice">click to toggle source</span></div>
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<div class="method-description">
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<p>create a literal from and xml string</p>
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literal = Literal.from_xml('<em>This is emphasized</em>')
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<div class="method-source-code" id="from_xml-source">
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<span class="ruby-comment"># File rdf/redland/node.rb, line 256</span>
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<span class="ruby-keyword">def</span> <span class="ruby-constant">Literal</span>.<span class="ruby-identifier">from_xml</span>(<span class="ruby-identifier">str</span>,<span class="ruby-identifier">lang</span>=<span class="ruby-keyword">nil</span>)
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<span class="ruby-keyword">return</span> <span class="ruby-constant">Literal</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">str</span>,<span class="ruby-identifier">lang</span>,<span class="ruby-keyword">nil</span>,<span class="ruby-keyword">true</span>)
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<span class="ruby-keyword">end</span>
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<!-- from_xml-source --></div>
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<!-- from_xml-method -->
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<div id="new-method" class="method-detail"><a name="method-c-new" id="method-c-new"></a>
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<div class="method-heading"><span class="method-name">new</span><span class="method-args">(str,lang=nil,uri=nil,is_xml=false)</span> <span class="method-click-advice">click to toggle source</span></div>
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<div class="method-description">
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<p>create a new <a href="Literal.html">Literal</a> node</p>
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literal = Literal.new('Dominic')
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label = Literal.new('Name','en')
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<div class="method-source-code" id="new-source">
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<span class="ruby-comment"># File rdf/redland/node.rb, line 231</span>
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<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">str</span>,<span class="ruby-identifier">lang</span>=<span class="ruby-keyword">nil</span>,<span class="ruby-identifier">uri</span>=<span class="ruby-keyword">nil</span>,<span class="ruby-identifier">is_xml</span>=<span class="ruby-keyword">false</span>)
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<span class="ruby-ivar">@value</span> = <span class="ruby-identifier">str</span>
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<span class="ruby-ivar">@language</span> = <span class="ruby-identifier">lang</span>
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<span class="ruby-identifier">is_xml</span> = <span class="ruby-identifier">is_xml</span><span class="ruby-operator">==</span><span class="ruby-keyword">true</span> <span class="ruby-operator">?</span> <span class="ruby-value">1</span> <span class="ruby-operator">:</span> <span class="ruby-value">0</span>
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<span class="ruby-keyword">if</span> <span class="ruby-identifier">uri</span>
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<span class="ruby-ivar">@node</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_new_node_from_typed_literal</span>(<span class="ruby-identifier">$world</span>.<span class="ruby-identifier">world</span>,<span class="ruby-identifier">value</span>,<span class="ruby-identifier">lang</span>,<span class="ruby-identifier">uri</span>.<span class="ruby-identifier">uri</span>)
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<span class="ruby-keyword">else</span>
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<span class="ruby-ivar">@node</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_new_node_from_literal</span>(<span class="ruby-identifier">$world</span>.<span class="ruby-identifier">world</span>,<span class="ruby-identifier">value</span>,<span class="ruby-identifier">lang</span>,<span class="ruby-identifier">is_xml</span>)
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<span class="ruby-keyword">end</span>
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<span class="ruby-identifier">raise</span> <span class="ruby-constant">RedlandError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">"Node construction failed"</span>) <span class="ruby-keyword">if</span> <span class="ruby-keyword">not</span> <span class="ruby-ivar">@node</span>
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<span class="ruby-constant">ObjectSpace</span>.<span class="ruby-identifier">define_finalizer</span>(<span class="ruby-keyword">self</span>,<span class="ruby-constant">Node</span>.<span class="ruby-identifier">create_finalizer</span>(<span class="ruby-ivar">@node</span>))
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<span class="ruby-keyword">end</span>
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<!-- new-source --></div>
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