org.scijava
Class AbstractContextual

java.lang.Object
  org.scijava.AbstractContextual

All Implemented Interfaces:

Contextual

Direct Known Subclasses:

AbstractRichPlugin, SciJavaEvent, ServiceHelper

public abstract class AbstractContextual
extends Object
implements Contextual

Abstract base class for Contextual objects.

Delegates to Context.inject(Object) to do the actual work of setting the context, injecting service parameters, and registering EventHandler methods as event subscribers.

Author:

Curtis Rueden

See Also:

Context.inject(Object)

Constructor Summary

AbstractContextual()

Method Summary

Context	context() Gets the application context to which the object belongs.
Context	getContext() Gets the application context to which the object belongs, or null if Contextual.setContext(Context) has not yet been called on this object.
void	setContext(Context context) Sets the application context to which the object belongs.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractContextual

public AbstractContextual()

Method Detail

context

public Context context()

Description copied from interface: Contextual

Gets the application context to which the object belongs.

Specified by:

context in interface Contextual

See Also:

Contextual.getContext()

getContext

public Context getContext()

Description copied from interface: Contextual

Gets the application context to which the object belongs, or null if Contextual.setContext(Context) has not yet been called on this object.

Specified by:

getContext in interface Contextual

See Also:

Contextual.context()

setContext

public void setContext(Context context)

Description copied from interface: Contextual

Sets the application context to which the object belongs.

Typically this method simply delegates to Context.inject(Object), and should be called only once to populate the context. Most contextual objects do not support later alteration of the context, and will throw IllegalStateException if this method is invoked again.

Specified by:

setContext in interface Contextual

See Also:

Context.inject(Object), for an example of how to implement this interface