Differential D6953 Diff 25202 java/src/main/java/org/softwareheritage/graph/Subgraph.java

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	package org.softwareheritage.graph;			package org.softwareheritage.graph;

	import it.unimi.dsi.big.webgraph.ImmutableGraph;			import it.unimi.dsi.big.webgraph.ImmutableGraph;
	import it.unimi.dsi.big.webgraph.LazyLongIterator;			import it.unimi.dsi.big.webgraph.LazyLongIterator;
	import it.unimi.dsi.big.webgraph.NodeIterator;			import it.unimi.dsi.big.webgraph.NodeIterator;

	import java.util.NoSuchElementException;			import java.util.NoSuchElementException;

	public class Subgraph extends ImmutableGraph {			public class Subgraph extends ImmutableGraph {
	private final Graph underlyingGraph;			private final SwhBidirectionalGraph underlyingGraph;
	public final AllowedNodes allowedNodeTypes;			public final AllowedNodes allowedNodeTypes;

	private long nodeCount = -1;			private long nodeCount = -1;

	/**			/**
	* Constructor.			* Constructor.
	*			*
	*/			*/
	public Subgraph(Graph underlyingGraph, AllowedNodes allowedNodeTypes) {			public Subgraph(SwhBidirectionalGraph underlyingGraph, AllowedNodes allowedNodeTypes) {
	this.underlyingGraph = underlyingGraph.copy();			this.underlyingGraph = underlyingGraph.copy();
	this.allowedNodeTypes = allowedNodeTypes;			this.allowedNodeTypes = allowedNodeTypes;
	}			}

	/**			/**
	* Return a flyweight copy of the graph.			* Return a flyweight copy of the graph.
	*/			*/
	@Override			@Override
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