Graphical Modeling Framework Runtime - Eclipse Modeling Project: A Domain-Specific Language Toolkit - page 430

class —Fully qualified String containing the provider class.
<!ELEMENT Priority EMPTY>
<!ATTLIST Priority
name (Lowest|Low|Medium|High|Highest) >
name —The provider priority as a String— Lowest , Low , Medium , High , or
Highest .
<!ELEMENT Policy EMPTY>
<!ATTLIST Policy
class CDATA #REQUIRED>
class —The provider policy class. Provider policies can optionally be asso-
ciated with providers to determine whether the providers provide a given
operation.
Examples:
Following is an example of an element selection provider extension:
<extension
point="org.eclipse.gmf.runtime.common.ui.services.
elementSelectionProviders">
<elementSelectionProvider
class="org.eclipse.uml.ui.internal.providers.selection.
UMLElementSelectionProvider">
<Priority name="Highest"/>
</elementSelectionProvider>
</extension>
API information:
The value of the class attribute must represent a subclass of org.eclipse.
gmf.runtime.common.core.service.AbstractProvider that implements
org.eclipse.gmf.runtime.common.ui.services.elementselec-
tion.AbstractElementSelectionProvider .
Notes:
Diagrams generated using the GMF tooling do not currently use this
extension-point.
10.4.16 PropertiesService
The PropertiesService and corresponding IPropertiesProvider inter-
face collect all property contributions from property source providers and