# Package org.eclipse.core.runtime.spi

package org.eclipse.core.runtime.spi
Extension registry infrastructure for service providers

## Package Specification

This package provides an infrastructure and helper utilities oriented towards service providers implementing their own extension registries.

Related Packages
Package
Description
org.eclipse.core.runtime
Provides support for the runtime platform, core utility methods and the extension registry.
org.eclipse.core.runtime.adaptor
Provides API to start the platform.
org.eclipse.core.runtime.content
Provides core support for content types.
org.eclipse.core.runtime.dynamichelpers
Provides helpers to facilitate the authoring of dynamic plug-ins.
org.eclipse.core.runtime.jobs
Provides core support for scheduling and interacting with background activity.
org.eclipse.core.runtime.preferences
Provides core support for Eclipse preferences.
Class
Description
IDynamicExtensionRegistry
This interface provides an extra degree of access to an extension registry that might be useful to registry implementers.
IRegistryProvider
Implement this interface to specify a contributed extension registry.
RegistryContributor
This class describes a registry contributor which is an entity that supplies information to the extension registry.
RegistryStrategy
This is the basic registry strategy.