prajna.viz.prefuse

Class PrefuseConverter<N,E>

java.lang.Object

prajna.viz.prefuse.PrefuseConverter<N,E>

Type Parameters:

N - The class of node objects to convert

E - The class of edge objects in graphs to convert

public class PrefuseConverter<N,E>
extends java.lang.Object

Utility class for converting data structures into Prefuse data objects. Since Prefuse uses Tuples (essentially large tables) to maintain the data for its graphs and trees, it is necessary to convert arbitrary data structures into Prefuse Tuple structures. This class converts Prajna trees, graphs, and datasets into the corresponding tuple-based structures in Prefuse.

Author:

Edward Swing

Constructor Summary

Constructors

Constructor and Description
PrefuseConverter() Instantiates a new prefuse converter.
PrefuseConverter(TupleLoader<N> nodeTupleLoader, TupleLoader<E> edgeTupleLoader) Instantiates a new prefuse converter.

Method Summary

Methods

Modifier and Type	Method and Description
prefuse.data.Table	convertDataset(java.util.Set<? extends N> dataset) Convert a dataset into the Prefuse table structure.
prefuse.data.Graph	convertGraph(Graph<? extends N,? extends E> graph) Convert a graph from the Prajna graph structure into a Prefuse graph structure.
protected TupleLoader<E>	getEdgeLoader() Gets the edge loader used for converting Graph Edges
protected TupleLoader<N>	getNodeLoader() Gets the node loader used for converting graph nodes, tree nodes, and dataset elements
protected void	setEdgeLoader(TupleLoader<E> loader) Sets the edge loader used for converting Graph Edges
protected void	setNodeLoader(TupleLoader<N> loader) Sets the node loader used for converting graph nodes, tree nodes, and dataset elements

Methods inherited from class java.lang.Object

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

Constructor Detail

PrefuseConverter

public PrefuseConverter()

Instantiates a new prefuse converter.

PrefuseConverter

public PrefuseConverter(TupleLoader<N> nodeTupleLoader,
                TupleLoader<E> edgeTupleLoader)

Instantiates a new prefuse converter.

Parameters:

nodeTupleLoader - the node tuple loader

edgeTupleLoader - the edge tuple loader

Method Detail

convertDataset

public prefuse.data.Table convertDataset(java.util.Set<? extends N> dataset)

Convert a dataset into the Prefuse table structure.

Parameters:

dataset - the Prajna dataset

Returns:

the prefuse table that is created from the data set

convertGraph

public prefuse.data.Graph convertGraph(Graph<? extends N,? extends E> graph)

Convert a graph from the Prajna graph structure into a Prefuse graph structure. This method builds the tuple tables and maintains the node and edge relationships.

Parameters:

graph - the prajna graph

Returns:

the converted Prefuse graph structure

getEdgeLoader

protected TupleLoader<E> getEdgeLoader()

Gets the edge loader used for converting Graph Edges

Returns:

the edge loader

getNodeLoader

protected TupleLoader<N> getNodeLoader()

Gets the node loader used for converting graph nodes, tree nodes, and dataset elements

Returns:

the node loader

setEdgeLoader

protected void setEdgeLoader(TupleLoader<E> loader)

Sets the edge loader used for converting Graph Edges

Parameters:

loader - the edge loader

setNodeLoader

protected void setNodeLoader(TupleLoader<N> loader)

Sets the node loader used for converting graph nodes, tree nodes, and dataset elements

Parameters:

loader - the node loader