How to use

org.eclipse.jface.text.quickassist.QuickAssistAssistant$ContentAssistProcessor

constructor

@Override
public void setQuickAssistProcessor(IQuickAssistProcessor processor) {
  fQuickAssistProcessor= processor;
  fQuickAssistAssistantImpl.setDocumentPartitioning("__" + getClass().getName() + "_partitioning"); //$NON-NLS-1$ //$NON-NLS-2$
  fQuickAssistAssistantImpl.setContentAssistProcessor(new ContentAssistProcessor(processor), IDocument.DEFAULT_CONTENT_TYPE);
}

@Override
public void setQuickAssistProcessor(IQuickAssistProcessor processor) {
  fQuickAssistProcessor= processor;
  fQuickAssistAssistantImpl.setDocumentPartitioning("__" + getClass().getName() + "_partitioning"); //$NON-NLS-1$ //$NON-NLS-2$
  fQuickAssistAssistantImpl.setContentAssistProcessor(new ContentAssistProcessor(processor), IDocument.DEFAULT_CONTENT_TYPE);
}