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<div class="subTitle">com.google.javascript.jscomp.graph</div>
<h2 title="Class Graph" class="title">Class Graph<N,E></h2>
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<ul class="inheritance">
<li>java.lang.Object</li>
<li>
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<li>com.google.javascript.jscomp.graph.Graph<N,E></li>
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<dl><dt><span class="strong">Type Parameters:</span></dt><dd><code>N</code> - Value type that the graph node stores.</dd><dd><code>E</code> - Value type that the graph edge stores.</dd></dl>
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html" title="interface in com.google.javascript.jscomp.graph">AdjacencyGraph</a><N,E></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../com/google/javascript/jscomp/graph/DiGraph.html" title="class in com.google.javascript.jscomp.graph">DiGraph</a>, <a href="../../../../../com/google/javascript/jscomp/graph/UndiGraph.html" title="class in com.google.javascript.jscomp.graph">UndiGraph</a></dd>
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<pre>public abstract class <span class="strong">Graph<N,E></span>
extends java.lang.Object
implements <a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html" title="interface in com.google.javascript.jscomp.graph">AdjacencyGraph</a><N,E></pre>
<div class="block">The base generic class for graph-like data structure and algorithms in
the compiler.
<p>
Nodes and edges in the graph can store a piece of data that this graph is
used to represent. For example, a variable interference graph might store a
variable in the node. This piece of data can be accessed with
<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html#getValue()"><code>GraphNode.getValue()</code></a> and <a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html#getValue()"><code>Graph.GraphEdge.getValue()</code></a>.
<p>
Algorithms and analysis can annotate information on the nodes and edges
using <a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html#getValue()"><code>GraphNode.getValue()</code></a> and <a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html#getValue()"><code>Graph.GraphEdge.getValue()</code></a>. For example,
a graph coloring algorithm can store the color as an annotation. If multiple
analyses are required, it is up to the user of the analysis to save the
annotated solution between passes.
<p>
We implemented our own graph data structure (as opposed to using
<code>com.google.common.graph</code>) for two reasons. First, aside from
the node's label value, we would like to annotate information on the nodes
and edges. Using a map to annotate would introduce too much overhead during
fix point analysis. Also, <code>com.google.common.graph</code> does not
support labeling of edges. Secondly, not using another external package would
limit our dependencies.
<p>
TODO(user): All functionality for removing nodes and edges.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static interface </code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="type parameter in Graph.GraphEdge">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="type parameter in Graph.GraphEdge">E</a>></strong></code>
<div class="block">A generic edge.</div>
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<td class="colOne"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#Graph()">Graph</a></strong>()</code> </td>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#clearEdgeAnnotations()">clearEdgeAnnotations</a></strong>()</code>
<div class="block">Makes each edge's annotation null.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#clearNodeAnnotations()">clearNodeAnnotations</a></strong>()</code>
<div class="block">Makes each node's annotation null.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#connect(N,%20E,%20N)">connect</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> edge,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Connects two nodes in the graph with an edge.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#connectIfNotFound(N,%20E,%20N)">connectIfNotFound</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> edge,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Connects two nodes in the graph with an edge if such edge does not already
exists between the nodes.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract <a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#createNode(N)">createNode</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</code>
<div class="block">Gets a node from the graph given a value.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#disconnect(N,%20N)">disconnect</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Disconnects two nodes in the graph by removing all edges between them.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getEdges()">getEdges</a></strong>()</code>
<div class="block">Gets an immutable list of all edges.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getEdges(N,%20N)">getEdges</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Retrieves an edge from the graph.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract <a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getFirstEdge(N,%20N)">getFirstEdge</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Retrieves any edge from the graph.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getNeighborNodes(N)">getNeighborNodes</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</code>
<div class="block">Gets the neighboring nodes.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract java.util.Iterator<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getNeighborNodesIterator(N)">getNeighborNodesIterator</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract int</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getNodeDegree(N)">getNodeDegree</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</code>
<div class="block">Gets the degree of a node.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract java.util.Collection<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getNodes()">getNodes</a></strong>()</code>
<div class="block">Gets an immutable list of all nodes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#getWeight(N)">getWeight</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</code>
<div class="block">Returns a weight for the given value to be used in ordering nodes, e.g.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#hasNode(N)">hasNode</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n)</code>
<div class="block">Checks whether the node exists in the graph (<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#createNode(N)"><code>createNode(Object)</code></a>
has been called with that value).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#isConnected(N,%20E,%20N)">isConnected</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> e,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Checks whether two nodes in the graph are connected by the given
edge type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>abstract boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#isConnected(N,%20N)">isConnected</a></strong>(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</code>
<div class="block">Checks whether two nodes in the graph are connected.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#popEdgeAnnotations()">popEdgeAnnotations</a></strong>()</code>
<div class="block">Restores edges' annotation values to state before last
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushEdgeAnnotations()"><code>pushEdgeAnnotations()</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#popNodeAnnotations()">popNodeAnnotations</a></strong>()</code>
<div class="block">Restores nodes' annotation values to state before last
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushNodeAnnotations()"><code>pushNodeAnnotations()</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushEdgeAnnotations()">pushEdgeAnnotations</a></strong>()</code>
<div class="block">Pushes edges' annotation values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushNodeAnnotations()">pushNodeAnnotations</a></strong>()</code>
<div class="block">Pushes nodes' annotation values.</div>
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<code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#getNode(N)">getNode</a>, <a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#newSubGraph()">newSubGraph</a></code></li>
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<h4>Graph</h4>
<pre>public Graph()</pre>
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<h4>connect</h4>
<pre>public abstract void connect(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> edge,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Connects two nodes in the graph with an edge.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - First node.</dd><dd><code>edge</code> - The edge.</dd><dd><code>n2</code> - Second node.</dd></dl>
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<pre>public abstract void disconnect(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Disconnects two nodes in the graph by removing all edges between them.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - First node.</dd><dd><code>n2</code> - Second node.</dd></dl>
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<pre>public final void connectIfNotFound(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> edge,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Connects two nodes in the graph with an edge if such edge does not already
exists between the nodes.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - First node.</dd><dd><code>edge</code> - The edge.</dd><dd><code>n2</code> - Second node.</dd></dl>
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<pre>public abstract <a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>> createNode(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</pre>
<div class="block">Gets a node from the graph given a value. New nodes are created if that
value has not been assigned a graph node. Values equality are compared
using <code>Object.equals</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The node's value.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The corresponding node in the graph.</dd></dl>
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<pre>public abstract java.util.Collection<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>> getNodes()</pre>
<div class="block">Gets an immutable list of all nodes.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#getNodes()">getNodes</a></code> in interface <code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html" title="interface in com.google.javascript.jscomp.graph">AdjacencyGraph</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>></code></dd>
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<pre>public abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>> getEdges()</pre>
<div class="block">Gets an immutable list of all edges.</div>
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<pre>public abstract int getNodeDegree(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</pre>
<div class="block">Gets the degree of a node.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The node's value.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The degree of the node.</dd></dl>
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<pre>public int getWeight(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#getWeight(N)">AdjacencyGraph</a></code></strong></div>
<div class="block">Returns a weight for the given value to be used in ordering nodes, e.g.
in <a href="../../../../../com/google/javascript/jscomp/graph/GraphColoring.html" title="class in com.google.javascript.jscomp.graph"><code>GraphColoring</code></a>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#getWeight(N)">getWeight</a></code> in interface <code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html" title="interface in com.google.javascript.jscomp.graph">AdjacencyGraph</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>></code></dd>
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<pre>public abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>> getNeighborNodes(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</pre>
<div class="block">Gets the neighboring nodes.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - The node's value.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A list of neighboring nodes.</dd></dl>
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<pre>public abstract java.util.Iterator<<a href="../../../../../com/google/javascript/jscomp/graph/GraphNode.html" title="interface in com.google.javascript.jscomp.graph">GraphNode</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>> getNeighborNodesIterator(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> value)</pre>
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<pre>public abstract java.util.List<<a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>>> getEdges(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Retrieves an edge from the graph.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - Node one.</dd><dd><code>n2</code> - Node two.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The list of edges between those two values in the graph.</dd></dl>
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<pre>public abstract <a href="../../../../../com/google/javascript/jscomp/graph/Graph.GraphEdge.html" title="interface in com.google.javascript.jscomp.graph">Graph.GraphEdge</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>> getFirstEdge(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Retrieves any edge from the graph.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - Node one.</dd><dd><code>n2</code> - Node two.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The first edges between those two values in the graph. null if
there are none.</dd></dl>
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<pre>public final boolean hasNode(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n)</pre>
<div class="block">Checks whether the node exists in the graph (<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#createNode(N)"><code>createNode(Object)</code></a>
has been called with that value).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n</code> - Node.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if it exist.</dd></dl>
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<pre>public abstract boolean isConnected(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Checks whether two nodes in the graph are connected.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - Node 1.</dd><dd><code>n2</code> - Node 2.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the two nodes are connected.</dd></dl>
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<pre>public abstract boolean isConnected(<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n1,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a> e,
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a> n2)</pre>
<div class="block">Checks whether two nodes in the graph are connected by the given
edge type.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>n1</code> - Node 1.</dd><dd><code>e</code> - The edge type.</dd><dd><code>n2</code> - Node 2.</dd></dl>
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<pre>public final void clearNodeAnnotations()</pre>
<div class="block"><strong>Description copied from interface: <code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#clearNodeAnnotations()">AdjacencyGraph</a></code></strong></div>
<div class="block">Makes each node's annotation null.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html#clearNodeAnnotations()">clearNodeAnnotations</a></code> in interface <code><a href="../../../../../com/google/javascript/jscomp/graph/AdjacencyGraph.html" title="interface in com.google.javascript.jscomp.graph">AdjacencyGraph</a><<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">N</a>,<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html" title="type parameter in Graph">E</a>></code></dd>
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<pre>public final void clearEdgeAnnotations()</pre>
<div class="block">Makes each edge's annotation null.</div>
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<pre>public final void pushNodeAnnotations()</pre>
<div class="block">Pushes nodes' annotation values. Restored with
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#popNodeAnnotations()"><code>popNodeAnnotations()</code></a>. Nodes' annotation values are cleared.</div>
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<pre>public final void popNodeAnnotations()</pre>
<div class="block">Restores nodes' annotation values to state before last
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushNodeAnnotations()"><code>pushNodeAnnotations()</code></a>.</div>
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<pre>public final void pushEdgeAnnotations()</pre>
<div class="block">Pushes edges' annotation values. Restored with
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#popEdgeAnnotations()"><code>popEdgeAnnotations()</code></a>. Edges' annotation values are cleared.</div>
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<pre>public final void popEdgeAnnotations()</pre>
<div class="block">Restores edges' annotation values to state before last
<a href="../../../../../com/google/javascript/jscomp/graph/Graph.html#pushEdgeAnnotations()"><code>pushEdgeAnnotations()</code></a>.</div>
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