nz.ac.waikato.mcennis.rat.graph.link
Class LinkFactory

java.lang.Object
  nz.ac.waikato.mcennis.rat.AbstractFactory<Link>
      nz.ac.waikato.mcennis.rat.graph.link.LinkFactory

public class LinkFactory
extends AbstractFactory<Link>

Class for generating Links from a Properties map.

Field Summary

static boolean

isInitialized

Fields inherited from class nz.ac.waikato.mcennis.rat.AbstractFactory

map, properties

Constructor Summary

protected

LinkFactory() Creates a new instance of LinkFactory

Method Summary

Link	create(Properties props) Create the given object using the settings in the Properties object.
Link	create(java.lang.String relation) Creates a new Link based on the 'LinkClass' attribute.
Link	create(java.lang.String relation, Properties parameters)
Parameter	getClassParameter() Return the parameter containing the name of the default type produced by this object.
static void	initialization()
static LinkFactory	newInstance() Create a new reference to a singelton LinkFactory object

Methods inherited from class nz.ac.waikato.mcennis.rat.AbstractFactory

addDefaultProperty, addType, check, check, getKnownTypes, getParameter, getParameter, setDefaultProperty

Methods inherited from class java.lang.Object

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

Field Detail

isInitialized

public static boolean isInitialized

Constructor Detail

LinkFactory

protected LinkFactory()

Creates a new instance of LinkFactory

Method Detail

newInstance

public static LinkFactory newInstance()

Create a new reference to a singelton LinkFactory object

Returns:

a reference to a LinkFactory

initialization

public static void initialization()

create

public Link create(java.lang.String relation)

Creates a new Link based on the 'LinkClass' attribute. Currently only BasicLink is supported, so this value is ignored. 'LinkType' sets the link type (relation) of this link before returning.

Parameters:

props - map of properties for creating a map

Returns:

a newly created Link

create

public Link create(Properties props)

Description copied from class: AbstractFactory

Create the given object using the settings in the Properties object. This function is the only global creation object, but each factory should also define a more user-friendly version consisting of a set of commonly used creation parameters as well as a version combining commonly used features with a Properties object. The property may be null. if the creation fails, the factory should log to the Logger the explanation and return null. If at all possible, the factory should provide a reasonable fail-over value rather than return null.

Specified by:

create in class AbstractFactory<Link>

Parameters:

props - parameters used to control the factory.

Returns:

newly created object or null

create

public Link create(java.lang.String relation,
                   Properties parameters)

getClassParameter

public Parameter getClassParameter()

Description copied from class: AbstractFactory

Return the parameter containing the name of the default type produced by this object. The parameter will have exactly one value of type String. The type name of this parameter is the type that controls which class of object is produced.

Specified by:

getClassParameter in class AbstractFactory<Link>

Returns:

parameter containing the default type.