Bug 5231 Add search for field read and write references
The UI should support the following new JDT Core feature: Search for field read and field write references. Two new constants have been added on IJavaSearchConstants to be used when creating a field reference search pattern: - READ_REFERENCES: the search results contain *only* read access to a field. - WRITE_REFERENCES: the search results contain *only* write access to a field. If REFERENCES is used, then search results contain both read and write accesss to a field.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchPage.java
match= null;
		};
		if (match == null) {
			match= new SearchPatternData(
							getSearchFor(),
							getLimitTo(),
							getPattern(),
							fJavaElement,
							getContainer().getSelectedScope(),
							getContainer().getSelectedWorkingSet());
			fgPreviousSearchPatterns.add(match);
		}
		else {
			match.searchFor= getSearchFor();
			match.limitTo= getLimitTo();
			match.javaElement= fJavaElement;
			match.scope= getContainer().getSelectedScope();
			match.workingSet= getContainer().getSelectedWorkingSet();
		};
		return match;
	}
	/*
	 * Implements method from IDialogPage
	 */
	public void setVisible(boolean visible) {
		if (visible && fPattern != null) {
			if (fFirstTime) {
				fFirstTime= false;
				
				fPattern.setItems(getPreviousSearchPatterns());