Answer:
The JFace text provides a framework for the creation and manipulation of text documents. IDocument is the major abstraction for the text model. The content management, position management using portion categories, document partition management, and change notification is provided by this text model.
The changes / notifications are identified by mandatorily implementing the IDocumentListener and registering with the document. The position and partition updating actions are implemented by using IDocumentPositionUpdater and IDocumentPartitioner.
The changes / notifications are identified by mandatorily implementing the IDocumentListener and registering with the document. The position and partition updating actions are implemented by using IDocumentPositionUpdater and IDocumentPartitioner.
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