org.scijava.plugin

Interface SingletonService<PT extends SingletonPlugin>

Type Parameters:

PT - Plugin type of the plugins being managed.

All Superinterfaces:

Comparable<Prioritized>, Contextual, Disposable, HasPluginInfo, Prioritized, PTService<PT>, RichPlugin, SciJavaPlugin, Service

All Known Subinterfaces:

AppService, ConsoleService, ConvertService, DragAndDropService, HandlerService<DT,PT>, IOService, OptionsService, PlatformService, ScriptHeaderService, ScriptService, TextService, ToolService

All Known Implementing Classes:

AbstractConvertService, AbstractHandlerService, AbstractSingletonService, DefaultAppService, DefaultConsoleService, DefaultConvertService, DefaultDragAndDropService, DefaultIOService, DefaultOptionsService, DefaultPlatformService, DefaultScriptHeaderService, DefaultScriptService, DefaultTextService, DefaultToolService

public interface SingletonService<PT extends SingletonPlugin>
extends PTService<PT>

A service for managing SingletonPlugins of a particular type. The SingletonService creates and maintain a list of singleton instances.

Note that like PTService, TypedService and WrapperService, SingletonService is not a service interface defining API for a specific concrete service implementation, but rather a more general layer in a type hierarchy intended to ease creation of services that fit its pattern.

Author:

Curtis Rueden

See Also:

PTService

Method Summary

Methods

Modifier and Type	Method and Description
<P extends PT> P	getInstance(Class<P> pluginClass) Gets the singleton plugin instance of the given class.
List<PT>	getInstances() Gets the list of plugin instances.

Methods inherited from interface org.scijava.plugin.PTService

create, getPlugins, getPluginService, getPluginType

Methods inherited from interface org.scijava.service.Service

initialize, registerEventHandlers

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

getPriority, setPriority

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Disposable

dispose

Method Detail

getInstances

List<PT> getInstances()

Gets the list of plugin instances. There will be one singleton instance for each available plugin.

getInstance

<P extends PT> P getInstance(Class<P> pluginClass)

Gets the singleton plugin instance of the given class.