IJavaFoldingStructureProvider (Eclipse JDT API Specification)

All Known Implementing Classes:

DefaultJavaFoldingStructureProvider
```
public interface IJavaFoldingStructureProvider
```
Contributors to the org.eclipse.jdt.ui.foldingStructureProvider extension point must specify an implementation of this interface which will create and maintain ProjectionAnnotation objects that define folded regions in the ProjectionViewer.
Clients may implement this interface.

In order to provide backward compatibility for clients of IJavaFoldingStructureProvider, extension interfaces are used to provide a means of evolution. The following extension interfaces exist:
- IJavaFoldingStructureProviderExtension since version 3.2 introducing the following functions:
  - collapsing of comments and members
  - expanding and collapsing of certain java elements
Since:

3.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`initialize()`	(Re-)initializes the structure provided by the receiver.
`void`	`install(ITextEditor editor, ProjectionViewer viewer)`	Installs this structure provider on the given editor and viewer.
`void`	`uninstall()`	Uninstalls this structure provider.

- Method Detail
  - install
```
void install(ITextEditor editor,
             ProjectionViewer viewer)
```
    Installs this structure provider on the given editor and viewer. Implementations should listen to the projection events generated by viewer and enable / disable generation of projection structure accordingly.
    
    Parameters:
    
    editor - the editor that this provider works on
    
    viewer - the projection viewer that displays the annotations created by this structure provider
  - uninstall
```
void uninstall()
```
    Uninstalls this structure provider. Any references to editors or viewers should be cleared.
  - initialize
```
void initialize()
```
    (Re-)initializes the structure provided by the receiver.