Module org.jgrapht.io

Package org.jgrapht.nio.lemon

Class LemonExporter<V,E>

java.lang.Object

org.jgrapht.nio.BaseExporter<V,E>

org.jgrapht.nio.lemon.LemonExporter<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type

All Implemented Interfaces:

GraphExporter<V,E>

public class LemonExporter<V,E>
extends BaseExporter<V,E>
implements GraphExporter<V,E>

Exports a graph into Lemon graph format (LGF).

This is the custom graph format used in the Lemon graph library.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	LemonExporter.Parameter	Parameters that affect the behavior of the LemonExporter exporter.

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	CREATOR
private static final String	DELIM
private final Set<LemonExporter.Parameter>	parameters
private static final String	TAB1
private static final String	VERSION

Fields inherited from class org.jgrapht.nio.BaseExporter

edgeAttributeProvider, edgeIdProvider, graphAttributeProvider, graphIdProvider, vertexAttributeProvider, vertexIdProvider

Constructor Summary

Constructors

Constructor	Description
LemonExporter()	Constructs a new exporter.
LemonExporter(Function<V,String> vertexIdProvider)	Constructs a new exporter with a given vertex id provider.

Method Summary

Modifier and Type	Method	Description
private void	exportEdges(PrintWriter out, Graph<V,E> g)
void	exportGraph(Graph<V,E> g, Writer writer)	Export a graph using the given Writer.
private void	exportHeader(PrintWriter out)
private void	exportVertices(PrintWriter out, Graph<V,E> g)
boolean	isParameter(LemonExporter.Parameter p)	Return if a particular parameter of the exporter is enabled
private String	prepareId(String s)
void	setParameter(LemonExporter.Parameter p, boolean value)	Set the value of a parameter of the exporter

Methods inherited from class org.jgrapht.nio.BaseExporter

getEdgeAttribute, getEdgeAttributeProvider, getEdgeAttributes, getEdgeId, getEdgeIdProvider, getGraphAttribute, getGraphAttributeProvider, getGraphId, getGraphIdProvider, getVertexAttribute, getVertexAttributeProvider, getVertexAttributes, getVertexId, getVertexIdProvider, setEdgeAttributeProvider, setEdgeIdProvider, setGraphAttributeProvider, setGraphIdProvider, setVertexAttributeProvider, setVertexIdProvider

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jgrapht.nio.GraphExporter

exportGraph, exportGraph

Field Details

CREATOR

private static final String CREATOR

See Also:

• Constant Field Values

VERSION

private static final String VERSION

See Also:

• Constant Field Values

DELIM

private static final String DELIM

See Also:

• Constant Field Values

TAB1

private static final String TAB1

See Also:

• Constant Field Values

parameters

private final Set<LemonExporter.Parameter> parameters

Constructor Details

LemonExporter

public LemonExporter()

Constructs a new exporter.

LemonExporter

public LemonExporter(Function<V,String> vertexIdProvider)

Constructs a new exporter with a given vertex id provider.

Parameters:

vertexIdProvider - for generating vertex IDs. Must not be null.

Method Details

exportGraph

public void exportGraph(Graph<V,E> g,
 Writer writer)

Description copied from interface: GraphExporter

Export a graph using the given Writer.

It is the callers responsibility to ensure the Writer is closed after this method returned.

Specified by:

exportGraph in interface GraphExporter<V,E>

Parameters:

g - the graph to export

writer - the output writer

isParameter

public boolean isParameter(LemonExporter.Parameter p)

Return if a particular parameter of the exporter is enabled

Parameters:

p - the parameter

Returns:

true if the parameter is set, false otherwise

setParameter

public void setParameter(LemonExporter.Parameter p,
 boolean value)

Set the value of a parameter of the exporter

Parameters:

p - the parameter

value - the value to set

prepareId

private String prepareId(String s)

exportHeader

private void exportHeader(PrintWriter out)

exportVertices

private void exportVertices(PrintWriter out,
 Graph<V,E> g)

exportEdges

private void exportEdges(PrintWriter out,
 Graph<V,E> g)