nz.ac.waikato.mcennis.rat.graph
Class GraphFactory

java.lang.Object
  nz.ac.waikato.mcennis.rat.graph.GraphFactory

public class GraphFactory
extends java.lang.Object

Create a Graph object of the given type with the given arguments

Constructor Summary

protected

GraphFactory() Creates a new instance of GraphFactory

Method Summary

Graph	create(java.util.Properties args) Create a graph object without directly exposing the underlying types Types of graphs are pulled from the "Graph" key with "GraphID" for their unique ID.
java.lang.String[]	getKnownGraphs()
static GraphFactory	newInstance() return a singleton of this type, creating it if necessary

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphFactory

protected GraphFactory()

Creates a new instance of GraphFactory

Method Detail

newInstance

public static GraphFactory newInstance()

return a singleton of this type, creating it if necessary

Returns:

signelton instance of GraphFactory

create

public Graph create(java.util.Properties args)

Create a graph object without directly exposing the underlying types Types of graphs are pulled from the "Graph" key with "GraphID" for their unique ID.

• 'Null' - Creates a NullGraph object (no parameters)
• 'User' - Creates a UserList object (no parameters)
• 'Derby' - Creates a DerbyGraph Object
  • 'Directory' - location of the Derby DB
  • 'GraphID' - id string of the Derby Graph
  • 'GraphInitialize' - if present, the graph is initialized
  • 'GraphClear' - if present, the graph is cleared
• 'Postgresql' - Creates a PostgresqlGraph
  • 'GraphID' - graph ID, also name of database
  • 'GraphUser' - user to connect to datbase with
  • 'Initialize' - if present, the graph is initialized
  • 'GraphClear' - if equal to true, the graph is initialized
• 'UserIDList' - Creates a UserIDList object (no parameters)
• any other value - Creates a MemGraph object
  • 'GraphOutput' - Location to store XML output. No output created on close if this parameter is not set.
  • 'Compression' - if present, GZip compression is used.

Parameters:

args - parameters for the new graph

Returns:

newly created Graph object

getKnownGraphs

public java.lang.String[] getKnownGraphs()