Bug 6050 Avoid references to preference pages
Preference pages are optional. It should be possible to add and remove them from the code without further impact on the system. I.e. preference pages should not be used as accessors to preference settings. (See JavaCompletionProcessor)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/java/JavaCompletionProcessor.java
*/
	public void orderProposalsAlphabetically(boolean order) {
		fComparator= order ? new CompletionProposalComparator() : null;
	}
	
	/**
	 * Tells this processor to restrict is proposals to those
	 * starting with matching cases.
	 * 
	 * @param restrict <code>true</code> if proposals should be restricted
	 */
	public void restrictProposalsToMatchingCases(boolean restrict) {
		
	}
		
	/**
	 * @see IContentAssistProcessor#getErrorMessage()
	 */
	public String getErrorMessage() {
		return fCollector.getErrorMessage();
	}
	/**
	 * @see IContentAssistProcessor#getContextInformationValidator()
	 */
	public IContextInformationValidator getContextInformationValidator() {
		if (fValidator == null)
			fValidator= new JavaParameterListValidator();
		return fValidator;
	}
	/**