PT - Plugin type of the plugins being managed.public interface SingletonService<PT extends SingletonPlugin> extends PTService<PT>
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.
PTService| Modifier and Type | Method and Description |
|---|---|
default <P extends PT> |
create(Class<P> pluginClass)
Creates an instance of the given plugin class.
|
default List<? extends PT> |
filterInstances(List<PT> list)
Filters the given list of instances by this service's inclusion criteria.
|
<P extends PT> |
getInstance(Class<P> pluginClass)
Gets the singleton plugin instance of the given class.
|
List<PT> |
getInstances()
Gets the list of plugin instances.
|
default void |
initialize()
Performs any needed initialization when the service is first loaded.
|
default ObjectService |
objectService()
Gets the
ObjectService upon which this service depends. |
getPlugins, getPluginService, getPluginType, pluginServiceregisterEventHandlersgetIdentifier, logcontext, getContext, setContextcompareTo, getPriority, setPrioritygetInfo, setInfogetLocationgetVersiondisposedefault ObjectService objectService()
ObjectService upon which this service depends.List<PT> getInstances()
<P extends PT> P getInstance(Class<P> pluginClass)
default List<? extends PT> filterInstances(List<PT> list)
list - the initial list of instancesdefault <P extends PT> P create(Class<P> pluginClass)
PTServicecreate in interface PTService<PT extends SingletonPlugin>default void initialize()
Service
NB: This method is not intended to be called directly. It is called by
the service framework itself (specifically by the ServiceHelper)
when initializing the service. It should not be called a second time.
initialize in interface Initializableinitialize in interface ServiceCopyright © 2015–2022 SciJava. All rights reserved.