org.graphstream.stream.file.gexf

Class GEXF

java.lang.Object

org.graphstream.stream.SourceBase

org.graphstream.stream.PipeBase

org.graphstream.stream.file.gexf.GEXF

All Implemented Interfaces:

AttributeSink, ElementSink, GEXFElement, Pipe, Sink, Source

public class GEXF
extends PipeBase
implements GEXFElement

Nested Class Summary

Nested classes/interfaces inherited from class org.graphstream.stream.SourceBase

SourceBase.ElementType

Nested classes/interfaces inherited from interface org.graphstream.stream.file.gexf.GEXFElement

GEXFElement.AttrType, GEXFElement.ClassType, GEXFElement.DefaultEdgeType, GEXFElement.Extension, GEXFElement.IDType, GEXFElement.Mode, GEXFElement.TimeFormat

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	VERSION
static java.lang.String	XMLNS
static java.lang.String	XMLNS_SL
static java.lang.String	XMLNS_VIZ
static java.lang.String	XMLNS_XSI

Constructor Summary

Constructors

Constructor and Description
GEXF()

Method Summary

Modifier and Type	Method and Description
void	disable(GEXFElement.Extension ext)
void	enable(GEXFElement.Extension ext)
void	export(SmartXMLWriter stream)
GEXFElement.TimeFormat	getTimeFormat()
boolean	isExtensionEnable(GEXFElement.Extension ext)
void	stepBegins(java.lang.String sourceId, long timeId, double step) Since dynamic graphs are based on discrete event modifications, the notion of step is defined to simulate elapsed time between events.

Methods inherited from class org.graphstream.stream.PipeBase

edgeAdded, edgeAttributeAdded, edgeAttributeChanged, edgeAttributeRemoved, edgeRemoved, graphAttributeAdded, graphAttributeChanged, graphAttributeRemoved, graphCleared, nodeAdded, nodeAttributeAdded, nodeAttributeChanged, nodeAttributeRemoved, nodeRemoved

Methods inherited from class org.graphstream.stream.SourceBase

addAttributeSink, addElementSink, addSink, attributeSinks, clearAttributeSinks, clearElementSinks, clearSinks, elementSinks, removeAttributeSink, removeElementSink, removeSink, sendAttributeChangedEvent, sendAttributeChangedEvent, sendEdgeAdded, sendEdgeAdded, sendEdgeAttributeAdded, sendEdgeAttributeAdded, sendEdgeAttributeChanged, sendEdgeAttributeChanged, sendEdgeAttributeRemoved, sendEdgeAttributeRemoved, sendEdgeRemoved, sendEdgeRemoved, sendGraphAttributeAdded, sendGraphAttributeAdded, sendGraphAttributeChanged, sendGraphAttributeChanged, sendGraphAttributeRemoved, sendGraphAttributeRemoved, sendGraphCleared, sendGraphCleared, sendNodeAdded, sendNodeAdded, sendNodeAttributeAdded, sendNodeAttributeAdded, sendNodeAttributeChanged, sendNodeAttributeChanged, sendNodeAttributeRemoved, sendNodeAttributeRemoved, sendNodeRemoved, sendNodeRemoved, sendStepBegins, sendStepBegins

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.graphstream.stream.Source

addAttributeSink, addElementSink, addSink, clearAttributeSinks, clearElementSinks, clearSinks, removeAttributeSink, removeElementSink, removeSink

Field Detail

XMLNS

public static final java.lang.String XMLNS

See Also:

Constant Field Values

XMLNS_XSI

public static final java.lang.String XMLNS_XSI

See Also:

Constant Field Values

XMLNS_SL

public static final java.lang.String XMLNS_SL

See Also:

Constant Field Values

XMLNS_VIZ

public static final java.lang.String XMLNS_VIZ

See Also:

Constant Field Values

VERSION

public static final java.lang.String VERSION

See Also:

Constant Field Values

Constructor Detail

GEXF

public GEXF()

Method Detail

getTimeFormat

public GEXFElement.TimeFormat getTimeFormat()

isExtensionEnable

public boolean isExtensionEnable(GEXFElement.Extension ext)

disable

public void disable(GEXFElement.Extension ext)

enable

public void enable(GEXFElement.Extension ext)

export

public void export(SmartXMLWriter stream)
            throws javax.xml.stream.XMLStreamException

Specified by:

export in interface GEXFElement

Throws:

javax.xml.stream.XMLStreamException

stepBegins

public void stepBegins(java.lang.String sourceId,
                       long timeId,
                       double step)

Description copied from interface: ElementSink

Since dynamic graphs are based on discrete event modifications, the notion of step is defined to simulate elapsed time between events. So a step is a event that occurs in the graph, it does not modify it but it gives a kind of timestamp that allow the tracking of the progress of the graph over the time.

This kind of event is useful for dynamic algorithms that listen to the dynamic graph and need to measure the time in the graph's evolution.

Specified by:

stepBegins in interface ElementSink

Overrides:

stepBegins in class PipeBase

Parameters:

sourceId - Identifier of the graph where the step starts.

timeId - A numerical value that may give a timestamp to track the evolution of the graph over the time.