org.scijava.plugin

Interface HandlerService<DT,PT extends HandlerPlugin<DT>>

Type Parameters:

DT - Base data type handled by the handlers.

PT - Plugin type of the handlers.

All Superinterfaces:

Comparable<Prioritized>, Contextual, Disposable, HasPluginInfo, Identifiable, Locatable, Logged, Prioritized, PTService<PT>, RichPlugin, SciJavaPlugin, Service, SingletonService<PT>, Typed<DT>, TypedService<DT,PT>, Versioned

All Known Subinterfaces:

ConsoleService, ConvertService, DragAndDropService, IOService, RunService, ScriptHeaderService, TextService

All Known Implementing Classes:

AbstractConvertService, AbstractHandlerService, DefaultConsoleService, DefaultConvertService, DefaultDragAndDropService, DefaultIOService, DefaultRunService, DefaultScriptHeaderService, DefaultTextService

public interface HandlerService<DT,PT extends HandlerPlugin<DT>>
extends SingletonService<PT>, TypedService<DT,PT>

A service for managing HandlerPlugins of a particular type.

For any given data object, the service is capable of determining the most appropriate handler by sequentially querying each handler plugin on its list (via Typed.supports(T)).

Author:

Curtis Rueden

See Also:

HandlerPlugin

Method Summary

Modifier and Type	Method and Description
PT	getHandler(DT data) Gets the most appropriate handler for the given data object, or null if no handler supports it.
List<PT>	getInstances() Gets the list of handlers.
boolean	supports(DT data) Gets whether the given data object is supported.

Methods inherited from interface org.scijava.plugin.SingletonService

create, filterInstances, getInstance, initialize, objectService

Methods inherited from interface org.scijava.plugin.TypedService

find

Methods inherited from interface org.scijava.plugin.PTService

getPlugins, getPluginService, getPluginType, pluginService

Methods inherited from interface org.scijava.service.Service

registerEventHandlers

Methods inherited from interface org.scijava.plugin.RichPlugin

getIdentifier, log

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

compareTo, getPriority, setPriority

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Locatable

getLocation

Methods inherited from interface org.scijava.Versioned

getVersion

Methods inherited from interface org.scijava.Disposable

dispose

Methods inherited from interface org.scijava.Typed

getType

Method Detail

getHandler

PT getHandler(DT data)

Gets the most appropriate handler for the given data object, or null if no handler supports it.

getInstances

List<PT> getInstances()

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

Specified by:

getInstances in interface SingletonService<PT extends HandlerPlugin<DT>>

supports

boolean supports(DT data)

Gets whether the given data object is supported.

Specified by:

supports in interface Typed<DT>