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javapostgresqlhibernatecriteria

Criteria API how to write = ANY(?1) expression?


I have a query that I want to translate to Criteria API.

A query

select a, b, c from myTable t where t.e = ANY(?1)

After java processes it (native sql query) the final query looks like this

select a, b, c from myTable t where t.e = ANY(array['prop1', 'prop2', 'prop3'])

My Question is how to translate = ANY(?1) part to Criteria API?

I see that any() definition is

public <Y> Expression<Y> any(Subquery<Y> subquery) 

How to put array of values to it?

I'm using PostgreSQL


Solution

  • You will need a custom SQLFunction that renders the SQL you desire e.g.

    public class ArrayAny implements SQLFunction {
    
        @Override
        public boolean hasArguments() {
            return true;
        }
    
        @Override
        public boolean hasParenthesesIfNoArguments() {
            return true;
        }
    
        @Override
        public Type getReturnType(Type firstArgumentType, Mapping mapping) throws QueryException {
            return firstArgumentType;
        }
    
        @Override
        public String render(Type firstArgumentType, List args, SessionFactoryImplementor factory) throws QueryException {
            return "any(" + args.get(0) + "::text[])";
        }
    }
    

    You will have to register the function within the Dialect. Then you should be able to use the function like this:

    query.where(
      criteriaBuilder.equal(
        root.get("e"),
        criteriaBuilder.function('any', String.class, arrayAsString),
      )
    );