Model Providers

org.eclipse.core.resources.modelProviders

3.2

A model provider serves two purposes. Firstly, it is a means of grouping the resource mappings of a single model together for the purposes of performing operations, display, etc. Also, it provides a means of mapping a set of file system resources to the resource maqppings that describe how a model maps to resources.

<!ELEMENT extension (modelProvider , extends-model* , enablement)>

<!ATTLIST extension

point CDATA #REQUIRED

id    CDATA #IMPLIED

name  CDATA #IMPLIED>


<!ELEMENT modelProvider EMPTY>

<!ATTLIST modelProvider

name  CDATA #REQUIRED

class CDATA #REQUIRED>


<!ELEMENT extends-model EMPTY>

<!ATTLIST extends-model

id CDATA #REQUIRED>


The following is an example of using the modelProvider extension point. (in file plugin.xml) 
   
<extension
         id=
"modelProvider"

         name=
"Library Model Provider"

         point=
"org.eclipse.core.resources.modelProviders"
>

      
<modelProvider
            class=
"org.eclipse.examples.library.LibraryModelProvider"

            name=
"Library Model Provider"
/>

      
<extends-model id=
"org.eclipse.core.resources.modelProvider"
/>

      
<enablement>

           
<with variable=
"affectedNatures"
>

             
<iterate operator=
"or"
>

               
<equals value=
"org.eclipse.team.examples.library.nature"
/>

             
</iterate>

           
</with>

           
<with variable=
"element"
>

             
<instanceof value=
"org.eclipse.core.resources.IFile"
/>

           
</with>

       
</enablement>

   
</extension>

The value of the class attribute must represent an implementation of org.eclipse.core.resources.mapping.ModelProvider.

The platform itself does not have any predefined model providers. Particular product installs may include model providers as required.