edu.uci.ics.jung.graph.decorators
Class GlobalStringLabeller

java.lang.Object
  edu.uci.ics.jung.graph.decorators.StringLabeller
      edu.uci.ics.jung.graph.decorators.GlobalStringLabeller

All Implemented Interfaces:

VertexStringer

public class GlobalStringLabeller
extends StringLabeller

The GlobalStringLabeller applies labels to all vertices in a series of graphs. That is, rather than storing one instance per graph, it stores one instance globally that maps from vertex ID to label.

Author:

danyelf

Nested Class Summary

Nested classes/interfaces inherited from class edu.uci.ics.jung.graph.decorators.StringLabeller

StringLabeller.UniqueLabelException

Field Summary

protected static GlobalStringLabeller

instance

Fields inherited from class edu.uci.ics.jung.graph.decorators.StringLabeller

DEFAULT_STRING_LABELER_KEY, graph, labelToVertex, vertexToLabel

Constructor Summary

protected

GlobalStringLabeller()

Method Summary

static StringLabeller	getInstance()
String	getLabel(ArchetypeVertex v) Gets the String label associated with a particular Vertex.
static StringLabeller	getLabeller(Graph g)
static boolean	hasStringLabeller(Graph g) Checks if a labeller--any labeller--is associated with this graph.
static boolean	hasStringLabeller(Graph g, Object key) Checks for a labeller attached to a particular key in the graph.
void	setLabel(Vertex v, String l) Associates a Vertex with a Label, overrwriting any previous labels on this vertex or vertices equal to it.
static StringLabeller	setLabellerTo(Graph g) Sets the default StringLabeller of this graph to be a ToStringLabeller.
static StringLabeller	setLabellerTo(Graph g, Object key) Sets the StringLabeller of this graph, at this key, to be a ToStringLabeller.

Methods inherited from class edu.uci.ics.jung.graph.decorators.StringLabeller

assignDefaultLabels, clear, getGraph, getLabeller, getVertex, removeLabel

Methods inherited from class java.lang.Object

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

Field Detail

instance

protected static GlobalStringLabeller instance

Constructor Detail

GlobalStringLabeller

protected GlobalStringLabeller()

Method Detail

setLabellerTo

public static StringLabeller setLabellerTo(Graph g,
                                           Object key)

Sets the StringLabeller of this graph, at this key, to be a ToStringLabeller.

getInstance

public static StringLabeller getInstance()

Returns:

a GlobalStringLabeller instance

getLabeller

public static StringLabeller getLabeller(Graph g)

setLabellerTo

public static StringLabeller setLabellerTo(Graph g)

Sets the default StringLabeller of this graph to be a ToStringLabeller.

hasStringLabeller

public static boolean hasStringLabeller(Graph g)

Checks if a labeller--any labeller--is associated with this graph.

Parameters:

g - The graph to check.

hasStringLabeller

public static boolean hasStringLabeller(Graph g,
                                        Object key)

Checks for a labeller attached to a particular key in the graph. Useful for creating more than one Labeller for a particular Graph.

Parameters:

g - the Graph

key - the UserData key to which it is attached

Returns:

true if the graph has this labeller.

getLabel

public String getLabel(ArchetypeVertex v)

Gets the String label associated with a particular Vertex.

Specified by:

getLabel in interface VertexStringer

Overrides:

getLabel in class StringLabeller

Parameters:

v - a Vertex

Returns:

the label associated with that vertex If the vertex is not in the graph, throws a FatalException

setLabel

public void setLabel(Vertex v,
                     String l)
              throws StringLabeller.UniqueLabelException

Associates a Vertex with a Label, overrwriting any previous labels on this vertex or vertices equal to it.

Overrides:

setLabel in class StringLabeller

Parameters:

v - a Vertex

l - a Label to be associated with this vertex

Throws:

UniqueLabelException - thrown if this label is already associated with some other vertex.

StringLabeller.UniqueLabelException