meka.gui.modelviewer.renderers

Class AbstractObjectRenderer

java.lang.Object

meka.gui.modelviewer.renderers.AbstractObjectRenderer

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

InstancesRenderer, MultiLabelClassifierRenderer, PlainTextRenderer

public abstract class AbstractObjectRenderer
extends Object
implements Serializable

Ancestor for classes that render objects visually.

Version:

$Revision: 10971 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static Hashtable<Class,List<Class>>	m_Cache the cache for object class / renderer relation.
protected static Class[]	m_RendererClasses the renderers (classes) currently available.
protected static Vector<String>	m_Renderers the renderers (classnames) currently available.

Constructor Summary

Constructors

Constructor and Description
AbstractObjectRenderer()

Method Summary

Modifier and Type	Method and Description
protected abstract String	doRender(Object obj, JPanel panel) Performs the actual rendering.
static List<AbstractObjectRenderer>	getRenderer(Class cls) Returns a renderer for the specified class.
static List<AbstractObjectRenderer>	getRenderer(Object obj) Returns a renderer for the specified object.
static String[]	getRenderers() Returns a list with classnames of renderers.
abstract boolean	handles(Class cls) Checks whether the renderer can handle the specified class.
protected static void	initRenderers() Initializes the renderers.
protected static List<AbstractObjectRenderer>	instantiate(List<Class> renderers) Instantiates the renderers.
String	render(Object obj, JPanel panel) Exports the object.

Methods inherited from class java.lang.Object

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

Field Detail

m_Cache

protected static Hashtable<Class,List<Class>> m_Cache

the cache for object class / renderer relation.

m_Renderers

protected static Vector<String> m_Renderers

the renderers (classnames) currently available.

m_RendererClasses

protected static Class[] m_RendererClasses

the renderers (classes) currently available.

Constructor Detail

AbstractObjectRenderer

public AbstractObjectRenderer()

Method Detail

initRenderers

protected static void initRenderers()

Initializes the renderers.

getRenderer

public static List<AbstractObjectRenderer> getRenderer(Object obj)

Returns a renderer for the specified object.

Parameters:

obj - the object to get a commandline renderer for

Returns:

the renderer

instantiate

protected static List<AbstractObjectRenderer> instantiate(List<Class> renderers)

Instantiates the renderers.

Parameters:

renderers - the renderers to instantiate

Returns:

the instances

getRenderer

public static List<AbstractObjectRenderer> getRenderer(Class cls)

Returns a renderer for the specified class.

Parameters:

cls - the class to get a commandline renderer for

Returns:

the renderer

handles

public abstract boolean handles(Class cls)

Checks whether the renderer can handle the specified class.

Parameters:

cls - the class to check

Returns:

true if the renderer can handle this type of object

doRender

protected abstract String doRender(Object obj,
                                   JPanel panel)

Performs the actual rendering.

Parameters:

obj - the object to render

panel - the panel to render into

Returns:

null if successful, otherwise error message

render

public String render(Object obj,
                     JPanel panel)

Exports the object.

Parameters:

obj - the object to render

panel - the panel to render into

Returns:

null if successful, otherwise error message

getRenderers

public static String[] getRenderers()

Returns a list with classnames of renderers.

Returns:

the renderer classnames