com.yworks.yfiles.graph.styles

Class VoidStripeStyleRenderer

java.lang.Object

com.yworks.yfiles.graph.styles.VoidStripeStyleRenderer

All Implemented Interfaces:

IStripeStyleRenderer

public final class VoidStripeStyleRenderer
extends Object
implements IStripeStyleRenderer

A void implementation of a stripe style renderer that does nothing.

This class implements the singleton pattern. Use the shared static INSTANCE of this class instead of null where null is not allowed. For example you cannot assign null to the Renderer property of an IStripeStyle.

Field Summary

Fields

Modifier and Type	Field and Description
static VoidStripeStyleRenderer	INSTANCE The VoidStripeStyleRenderer singleton.

Method Summary

Modifier and Type	Method and Description
ILookup	getContext(IStripe stripe, IStripeStyle style) Yields the ILookup.EMPTY that will not yield anything.
IVisualCreator	getVisualCreator(IStripe stripe, IStripeStyle style) Yields the VoidVisualCreator.INSTANCE that will do nothing.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final VoidStripeStyleRenderer INSTANCE

The VoidStripeStyleRenderer singleton.

Method Detail

getContext

public final ILookup getContext(IStripe stripe,
                                IStripeStyle style)

Yields the ILookup.EMPTY that will not yield anything.

Specified by:

getContext in interface IStripeStyleRenderer

Parameters:

stripe - The stripe to provide a context instance for.

style - The style to use for the context.

Returns:

An non-null lookup implementation.

See Also:

ILookup.EMPTY, ILookup

getVisualCreator

public final IVisualCreator getVisualCreator(IStripe stripe,
                                             IStripeStyle style)

Yields the VoidVisualCreator.INSTANCE that will do nothing.

Specified by:

getVisualCreator in interface IStripeStyleRenderer

Parameters:

stripe - The nstripeode to provide an instance for

style - The style to use for the creation of the visual

Returns:

An implementation that may be used to subsequently create or update the visual for the stripe. Clients should not cache this instance and must always call this method immediately before using the value returned. This enables the use of the flyweight design pattern for implementations. This method may not return null but should yield a void implementation instead.

See Also:

VoidVisualCreator.INSTANCE