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<?xml version="1.0" encoding="utf-8"?>
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<h1 class="class">Redland::Serializer</h1>
<div id="description" class="description">
<p>This module provides RDF graph to syntax serialization support via factory classes providing one or more particular target syntaxes.</p>
</div>
<!-- description -->
<div id="5Buntitled-5D" class="documentation-section"><!-- Methods -->
<div id="public-class-method-details" class="method-section section">
<h3 class="section-header">Public Class Methods</h3>
<div id="create_finalizer-method" class="method-detail"><a name="method-c-create_finalizer" id="method-c-create_finalizer"></a>
<div class="method-heading"><span class="method-name">create_finalizer</span><span class="method-args">(serializer)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>You shouldn't use this. Used internally for cleanup.</p>
<div class="method-source-code" id="create_finalizer-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 26</span>
<span class="ruby-keyword">def</span> <span class="ruby-constant">Serializer</span>.<span class="ruby-identifier">create_finalizer</span>(<span class="ruby-identifier">serializer</span>)
<span class="ruby-identifier">proc</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">id</span><span class="ruby-operator">|</span> <span class="ruby-comment"># "Finalizer on #{id}"</span>
<span class="ruby-comment">#log_final.info "closing serializer"</span>
<span class="ruby-constant">Redland</span><span class="ruby-operator">::</span><span class="ruby-identifier">librdf_free_serializer</span>(<span class="ruby-identifier">serializer</span>)
}
<span class="ruby-keyword">end</span>
</pre></div>
<!-- create_finalizer-source --></div>
</div>
<!-- create_finalizer-method -->
<div id="new-method" class="method-detail"><a name="method-c-new" id="method-c-new"></a>
<div class="method-heading"><span class="method-name">new</span><span class="method-args">(name='rdfxml',mime_type="application/rdf+xml",uri=nil)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Constructor - create a new <a href="Serializer.html">Serializer</a> object name - the serializer factory name mime_type - the MIME type of the syntax uri - URI of syntax</p>
<div class="method-source-code" id="new-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 12</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">name</span>=<span class="ruby-string">'rdfxml'</span>,<span class="ruby-identifier">mime_type</span>=<span class="ruby-string">"application/rdf+xml"</span>,<span class="ruby-identifier">uri</span>=<span class="ruby-keyword">nil</span>)
<span class="ruby-identifier">uri</span> = <span class="ruby-identifier">uri</span>.<span class="ruby-identifier">uri</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">uri</span>
<span class="ruby-ivar">@serializer</span> = <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_new_serializer</span>(<span class="ruby-identifier">$world</span>.<span class="ruby-identifier">world</span>,<span class="ruby-identifier">name</span>,<span class="ruby-identifier">mime_type</span>,<span class="ruby-identifier">uri</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">RedlandError</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">"Serializer construction failed"</span>) <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@serializer</span>
<span class="ruby-constant">ObjectSpace</span>.<span class="ruby-identifier">define_finalizer</span>(<span class="ruby-keyword">self</span>,<span class="ruby-constant">Serializer</span>.<span class="ruby-identifier">create_finalizer</span>(<span class="ruby-ivar">@serializer</span>))
<span class="ruby-keyword">end</span>
</pre></div>
<!-- new-source --></div>
</div>
<!-- new-method -->
<div id="ntriples-method" class="method-detail"><a name="method-c-ntriples" id="method-c-ntriples"></a>
<div class="method-heading"><span class="method-name">ntriples</span><span class="method-args">(uri=nil)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Create a NTriples serializer uri - URI of syntax</p>
<div class="method-source-code" id="ntriples-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 21</span>
<span class="ruby-keyword">def</span> <span class="ruby-constant">Serializer</span>.<span class="ruby-identifier">ntriples</span>(<span class="ruby-identifier">uri</span>=<span class="ruby-keyword">nil</span>)
<span class="ruby-keyword">return</span> <span class="ruby-constant">Serializer</span>.<span class="ruby-identifier">new</span>(<span class="ruby-string">'ntriples'</span>,<span class="ruby-string">'text/plain'</span>,<span class="ruby-identifier">uri</span>)
<span class="ruby-keyword">end</span>
</pre></div>
<!-- ntriples-source --></div>
</div>
<!-- ntriples-method --></div>
<!-- public-class-method-details -->
<div id="public-instance-method-details" class="method-section section">
<h3 class="section-header">Public Instance Methods</h3>
<div id="feature-method" class="method-detail"><a name="method-i-feature" id="method-i-feature"></a>
<div class="method-heading"><span class="method-name">feature</span><span class="method-args">(uri)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Get a parser feature. The feature is named via RDF::Redland::URI I<URI></p>
<div class="method-source-code" id="feature-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 46</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">feature</span>(<span class="ruby-identifier">uri</span>)
<span class="ruby-identifier">uri</span> = <span class="ruby-constant">Uri</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">uri</span>) <span class="ruby-keyword">unless</span> <span class="ruby-identifier">uri</span>.<span class="ruby-identifier">class</span> <span class="ruby-operator">==</span> <span class="ruby-constant">Uri</span>
<span class="ruby-identifier">value</span> = <span class="ruby-constant">Redland</span><span class="ruby-operator">::</span><span class="ruby-identifier">librdf_serializer_get_feature</span>(<span class="ruby-ivar">@serializer</span>,<span class="ruby-identifier">uri</span>.<span class="ruby-identifier">uri</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">value</span> <span class="ruby-operator">==</span> <span class="ruby-string">"NULL"</span> <span class="ruby-keyword">or</span> <span class="ruby-identifier">value</span><span class="ruby-operator">==</span><span class="ruby-keyword">nil</span>
<span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">else</span>
<span class="ruby-keyword">return</span> <span class="ruby-constant">Node</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">:from_object=</span><span class="ruby-operator">></span><span class="ruby-identifier">value</span>)
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
</pre></div>
<!-- feature-source --></div>
</div>
<!-- feature-method -->
<div id="model_to_string-method" class="method-detail"><a name="method-i-model_to_string" id="method-i-model_to_string"></a>
<div class="method-heading"><span class="method-name">model_to_string</span><span class="method-args">(base_uri, model)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Serialize the RDF graph in model to a string</p>
<div class="method-source-code" id="model_to_string-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 71</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">model_to_string</span>(<span class="ruby-identifier">base_uri</span>, <span class="ruby-identifier">model</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">base_uri</span>
<span class="ruby-identifier">base_uri</span> = <span class="ruby-identifier">base_uri</span>.<span class="ruby-identifier">uri</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_serializer_serialize_model_to_string</span>(<span class="ruby-ivar">@serializer</span>, <span class="ruby-identifier">base_uri</span>, <span class="ruby-identifier">model</span>.<span class="ruby-identifier">model</span>)
<span class="ruby-keyword">end</span>
</pre></div>
<!-- model_to_string-source --></div>
</div>
<!-- model_to_string-method -->
<div id="setFeature-method" class="method-detail"><a name="method-i-setFeature" id="method-i-setFeature"></a>
<div class="method-heading"><span class="method-name">setFeature</span><span class="method-args">(uri,value)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Set a serializer feature. The feature is named via RDF::Redland::URI I<URI> and the value is a RDF::Redland::Node.</p>
<div class="method-source-code" id="setFeature-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 58</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">setFeature</span>(<span class="ruby-identifier">uri</span>,<span class="ruby-identifier">value</span>)
<span class="ruby-identifier">uri</span> = <span class="ruby-constant">Uri</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">uri</span>) <span class="ruby-keyword">unless</span> <span class="ruby-identifier">uri</span>.<span class="ruby-identifier">class</span> <span class="ruby-operator">==</span> <span class="ruby-constant">Uri</span>
<span class="ruby-keyword">if</span> <span class="ruby-identifier">value</span>.<span class="ruby-identifier">class</span> <span class="ruby-operator">==</span> <span class="ruby-constant">String</span> <span class="ruby-keyword">then</span> <span class="ruby-identifier">value</span> = <span class="ruby-constant">Node</span>.<span class="ruby-identifier">new</span>(<span class="ruby-value">:literal=</span><span class="ruby-operator">></span><span class="ruby-identifier">value</span>) <span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> (<span class="ruby-constant">Redland</span><span class="ruby-operator">::</span><span class="ruby-identifier">librdf_serializer_set_feature</span>(<span class="ruby-ivar">@serializer</span>,<span class="ruby-identifier">uri</span>.<span class="ruby-identifier">uri</span>,<span class="ruby-identifier">value</span>.<span class="ruby-identifier">node</span>) <span class="ruby-operator">==</span> <span class="ruby-value">0</span>)
<span class="ruby-keyword">end</span>
</pre></div>
<!-- setFeature-source --></div>
</div>
<!-- setFeature-method -->
<div id="set_namespace-method" class="method-detail"><a name="method-i-set_namespace" id="method-i-set_namespace"></a>
<div class="method-heading"><span class="method-name">set_namespace</span><span class="method-args">(prefix, uri)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Set a serializer namepace to the desired prefix</p>
<div class="method-source-code" id="set_namespace-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 65</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">set_namespace</span>(<span class="ruby-identifier">prefix</span>, <span class="ruby-identifier">uri</span>)
<span class="ruby-identifier">uri</span> = <span class="ruby-constant">Uri</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">uri</span>) <span class="ruby-keyword">unless</span> <span class="ruby-identifier">uri</span>.<span class="ruby-identifier">class</span> <span class="ruby-operator">==</span> <span class="ruby-constant">Uri</span>
<span class="ruby-keyword">return</span> (<span class="ruby-constant">Redland</span><span class="ruby-operator">::</span><span class="ruby-identifier">librdf_serializer_set_namespace</span>(<span class="ruby-ivar">@serializer</span>,<span class="ruby-identifier">uri</span>.<span class="ruby-identifier">uri</span>,<span class="ruby-identifier">prefix</span>) <span class="ruby-operator">==</span> <span class="ruby-value">0</span>)
<span class="ruby-keyword">end</span>
</pre></div>
<!-- set_namespace-source --></div>
</div>
<!-- set_namespace-method -->
<div id="to_file-method" class="method-detail"><a name="method-i-to_file" id="method-i-to_file"></a>
<div class="method-heading"><span class="method-name">to_file</span><span class="method-args">(name,model,base_uri=nil)</span> <span class="method-click-advice">click to toggle source</span></div>
<div class="method-description">
<p>Serializes a model and stores it in a file name - the serializer factory name mime_type - the MIME type of the syntax base_uri - URI of syntax</p>
<div class="method-source-code" id="to_file-source">
<pre>
<span class="ruby-comment"># File rdf/redland/serializer.rb, line 37</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_file</span>(<span class="ruby-identifier">name</span>,<span class="ruby-identifier">model</span>,<span class="ruby-identifier">base_uri</span>=<span class="ruby-keyword">nil</span>)
<span class="ruby-keyword">if</span> <span class="ruby-identifier">base_uri</span>
<span class="ruby-identifier">base_uri</span> = <span class="ruby-identifier">base_uri</span>.<span class="ruby-identifier">uri</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">return</span> <span class="ruby-constant">Redland</span>.<span class="ruby-identifier">librdf_serializer_serialize_model_to_file</span>(<span class="ruby-ivar">@serializer</span>,<span class="ruby-identifier">name</span>,<span class="ruby-identifier">base_uri</span>,<span class="ruby-identifier">model</span>.<span class="ruby-identifier">model</span>)
<span class="ruby-keyword">end</span>
</pre></div>
<!-- to_file-source --></div>
</div>
<!-- to_file-method --></div>
<!-- public-instance-method-details --></div>
<!-- 5Buntitled-5D --></div>
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