org.eclipse.gmf.runtime.common.core.service
Interface IProviderPolicy
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public interface IProviderPolicy
The interface for all service providers lightweight's implementation. Specifies
a single part of the contract between a service and its providers:
- A service can request a provider whether it wants to support a given
request
Service implementers are not expected to implement this interface.
Service provider implementers should implement this interface directly in a
lightweight plug-in should they need to be more aggressive at preventing the
loading of the provider heavyweight plug-in. A provider need to expose the
class implementing this interface in the class attribute of a Policy
sub-element in their provider extension descriptor.
Provider's plugin.xml
<extension
id="..."
name="..."
point="...">
<XXXProvider
class="...">
<Priority
name="...">
</Priority>
<Policy
class="com.example.myClass"
plugin="com.example.myLightWeightPlugin"/>
</XXXProvider>
</extension>
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Method Summary
|
boolean
|
provides
(
IOperation operation)
Indicates whether this provider provides the specified operation. |
provides
boolean provides(
IOperation operation)
- Indicates whether this provider provides the specified operation.
Providers generally cast the operation to a service specific
IOperation-derived class in order to determine whether they
support the request.
-
-
Parameters:
-
operation - The operation in question.
-
Returns:
-
true if this provider provides the operation;
false otherwise.
Guidelines for using Eclipse APIs.
Copyright (c) IBM Corp., Borland Software Corp., and others 2005,2006. All rights reserved.
