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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.
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package org.scijava.plugin;
import java.util.List;
/**
* A service for managing {@link SingletonPlugin}s of a particular type. The
* {@code SingletonService} creates and maintain a list of singleton instances.
*
* Note that like {@link PTService}, {@link TypedService} and
* {@link WrapperService}, {@code 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
* @param Plugin type of the plugins being managed.
* @see PTService
*/
public interface SingletonService extends
PTService
{
/**
* Gets the list of plugin instances. There will be one singleton instance for
* each available plugin.
*/
List getInstances();
/** Gets the singleton plugin instance of the given class. */
P getInstance(Class
pluginClass);
}