Criterion Restrictions.like and numbers and dates

I'm using Hibernate over mySQL. In mySQL you can put LIKE in queries even on number (like double) parameters and dates, for example you can write:

select * from sillytable where field like "3.33%"

and this will work. The problem is that I can't do this in criterion using Restrictions.like, in fact it throws an exception says that it can't cast a String to a Date or Double.

How can I do t开发者_开发百科his with it?

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I found that the only good solution that did what I meant to do was using HQL. There is no clear way to do this in Criteria

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I think this is actually:

x => 3.33 and x < 3.34

In hibernate this is:

Restriction.between("field", 3.33, 3.34)

Between is defined as (min <= expr AND expr <= max). So the upper bound has to be changed to the biggest value starting with 3.33. (Caveat: You could have a representation failure if the upper bound is not representable and 3.34 is representated with 3.33999... . You would miss this one value if you do nextAfter with this already valid bound.)

Restriction.between("field", 3.33, Math.nextAfter(3.34, -Double.MAX_VALUE));

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Criteria crit;

try {
  crit = session.createCriteria(sillytable.class, "st");
  crit.add(Restrictions.like("field", number + "%"));
}

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If you still want to stick to Hibernate criteria use Restrictions.sqlRestriction instead of Restrictions.like as explained below:

Restrictions.sqlRestriction(" CAST({alias}.field AS CHAR) LIKE ('%" + number + "%')")