Case Insensitive Accent

Hi,

I'm beginner using SmartGWT with Hibernate and PostgreSQL.

My problem is the following: I want to search the words on database with Accent Insensitive (and ç/c too). However, I can't able.

"
public Criterion getPlanFilterCriteria(Integer scopeIdWorkgroup, Integer scopeIdCompany, Integer scopeIdProject){
List<Criterion> searchList = new LinkedList<Criterion>();
searchList.add(new Criterion("is_active", OperatorId.EQUALS, Boolean.TRUE));

String titleStr = title.getValueAsString();
if(titleStr!=null && !"".equals(titleStr.trim())){

searchList.add(new Criterion("title", OperatorId.ICONTAINS, titleStr));
}"

How can I solve my problem?

Thanks.