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<div class="subTitle">org.jgrapht.alg</div>
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<h2 title="Class GabowStrongConnectivityInspector" class="title">Class GabowStrongConnectivityInspector<V,E></h2>
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<ul class="inheritance">
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<li>org.jgrapht.alg.GabowStrongConnectivityInspector<V,E></li>
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<dt>All Implemented Interfaces:</dt>
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<dd><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><V,E></dd>
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<pre>public class <span class="strong">GabowStrongConnectivityInspector<V,E></span>
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extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
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implements <a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><V,E></pre>
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<div class="block">Allows obtaining the strongly connected components of a directed graph. The
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implemented algorithm follows Cheriyan-Mehlhorn/Gabow's algorithm Presented
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in Path-based depth-first search for strong and biconnected components by
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Gabow (2000). The running time is order of O(|V|+|E|)</div>
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<dl><dt><span class="strong">Since:</span></dt>
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<dd>September, 2013</dd>
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<dt><span class="strong">Author:</span></dt>
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<dd>Sarah Komla-Ebri</dd></dl>
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</li>
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<td class="colOne"><code><strong><a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#GabowStrongConnectivityInspector(org.jgrapht.DirectedGraph)">GabowStrongConnectivityInspector</a></strong>(<a href="../../../org/jgrapht/DirectedGraph.html" title="interface in org.jgrapht">DirectedGraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>> directedGraph)</code>
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<div class="block">The constructor of GabowStrongConnectivityInspector class.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code><a href="../../../org/jgrapht/DirectedGraph.html" title="interface in org.jgrapht">DirectedGraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>></code></td>
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<td class="colLast"><code><strong><a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#getGraph()">getGraph</a></strong>()</code>
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<div class="block">Returns the graph inspected</div>
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</td>
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><strong><a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#isStronglyConnected()">isStronglyConnected</a></strong>()</code>
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<div class="block">Returns true if the graph instance is strongly connected.</div>
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</td>
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<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>>></code></td>
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<td class="colLast"><code><strong><a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#stronglyConnectedSets()">stronglyConnectedSets</a></strong>()</code>
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<div class="block">Computes a <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util"><code>List</code></a> of <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><code>Set</code></a>s, where each set contains vertices
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which together form a strongly connected component within the given
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graph.</div>
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<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/jgrapht/graph/DirectedSubgraph.html" title="class in org.jgrapht.graph">DirectedSubgraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>>></code></td>
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<td class="colLast"><code><strong><a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#stronglyConnectedSubgraphs()">stronglyConnectedSubgraphs</a></strong>()</code>
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<div class="block">Computes a list of <a href="../../../org/jgrapht/graph/DirectedSubgraph.html" title="class in org.jgrapht.graph"><code>DirectedSubgraph</code></a>s of the given graph.</div>
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<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Constructor Detail</h3>
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<a name="GabowStrongConnectivityInspector(org.jgrapht.DirectedGraph)">
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<h4>GabowStrongConnectivityInspector</h4>
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<pre>public GabowStrongConnectivityInspector(<a href="../../../org/jgrapht/DirectedGraph.html" title="interface in org.jgrapht">DirectedGraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>> directedGraph)</pre>
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<div class="block">The constructor of GabowStrongConnectivityInspector class.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>directedGraph</code> - the graph to inspect</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code></dd></dl>
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<h3>Method Detail</h3>
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<a name="getGraph()">
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<h4>getGraph</h4>
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<pre>public <a href="../../../org/jgrapht/DirectedGraph.html" title="interface in org.jgrapht">DirectedGraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>> getGraph()</pre>
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<div class="block">Returns the graph inspected</div>
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<dl>
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<dt><strong>Specified by:</strong></dt>
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<dd><code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html#getGraph()">getGraph</a></code> in interface <code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>></code></dd>
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<dt><span class="strong">Returns:</span></dt><dd>the graph inspected</dd></dl>
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<a name="isStronglyConnected()">
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<h4>isStronglyConnected</h4>
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<pre>public boolean isStronglyConnected()</pre>
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<div class="block">Returns true if the graph instance is strongly connected.</div>
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<dl>
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<dt><strong>Specified by:</strong></dt>
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<dd><code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html#isStronglyConnected()">isStronglyConnected</a></code> in interface <code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>></code></dd>
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<dt><span class="strong">Returns:</span></dt><dd>true if the graph is strongly connected, false otherwise</dd></dl>
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</li>
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</ul>
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<a name="stronglyConnectedSets()">
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</a>
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<h4>stronglyConnectedSets</h4>
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<pre>public <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>>> stronglyConnectedSets()</pre>
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<div class="block">Computes a <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util"><code>List</code></a> of <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><code>Set</code></a>s, where each set contains vertices
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which together form a strongly connected component within the given
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graph.</div>
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<dl>
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<dt><strong>Specified by:</strong></dt>
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<dd><code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html#stronglyConnectedSets()">stronglyConnectedSets</a></code> in interface <code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>></code></dd>
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<dt><span class="strong">Returns:</span></dt><dd><code>List</code> of <code>Set</code> s containing the strongly
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connected components</dd></dl>
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</li>
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</ul>
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<a name="stronglyConnectedSubgraphs()">
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</a>
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<ul class="blockListLast">
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<li class="blockList">
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<h4>stronglyConnectedSubgraphs</h4>
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<pre>public <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/jgrapht/graph/DirectedSubgraph.html" title="class in org.jgrapht.graph">DirectedSubgraph</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>>> stronglyConnectedSubgraphs()</pre>
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<div class="block"><p>Computes a list of <a href="../../../org/jgrapht/graph/DirectedSubgraph.html" title="class in org.jgrapht.graph"><code>DirectedSubgraph</code></a>s of the given graph. Each
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subgraph will represent a strongly connected component and will contain
|
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|
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all vertices of that component. The subgraph will have an edge (u,v) iff
|
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|
|
u and v are contained in the strongly connected component.</p>
|
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|
||
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<p>NOTE: Calling this method will first execute <a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html#stronglyConnectedSets()"><code>stronglyConnectedSets()</code></a>. If you don't
|
||
|
|
need subgraphs, use that method.</p></div>
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<dl>
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<dt><strong>Specified by:</strong></dt>
|
||
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<dd><code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html#stronglyConnectedSubgraphs()">stronglyConnectedSubgraphs</a></code> in interface <code><a href="../../../org/jgrapht/alg/interfaces/StrongConnectivityAlgorithm.html" title="interface in org.jgrapht.alg.interfaces">StrongConnectivityAlgorithm</a><<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">V</a>,<a href="../../../org/jgrapht/alg/GabowStrongConnectivityInspector.html" title="type parameter in GabowStrongConnectivityInspector">E</a>></code></dd>
|
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<dt><span class="strong">Returns:</span></dt><dd>a list of subgraphs representing the strongly connected
|
||
|
|
components</dd></dl>
|
||
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</li>
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</ul>
|
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