Examples with JPQLSingleStringParser org.datanucleus.query.JPQLSingleStringParser used on opensource projects

Example 6 with JPQLSingleStringParser

use of org.datanucleus.query.JPQLSingleStringParser in project tests by datanucleus.

the class JPQLSingleStringParserTest method testSubqueryIn2.

/**
 * Test for the parse of a subquery and conversion into the correct components.
 */
public void testSubqueryIn2() {
    EntityManager em = emf.createEntityManager();
    String str = "SELECT T FROM org.jpox.samples.MyClass T WHERE " + "T.field1 IN (SELECT S FROM org.jpox.samples.OtherClass S) AND " + "T.field2 IN (SELECT R FROM org.jpox.samples.ExtraClass R)";
    Query q = em.createQuery(str);
    AbstractJPQLQuery query = (AbstractJPQLQuery) ((JPAQuery) q).getInternalQuery();
    JPQLSingleStringParser parser = new JPQLSingleStringParser(query, str);
    try {
        parser.parse();
        assertEquals("Filter is incorrect", "T.field1 IN DN_SUBQUERY_1 AND T.field2 IN DN_SUBQUERY_2", query.getFilter());
        SubqueryDefinition subqDef = query.getSubqueryForVariable("DN_SUBQUERY_1");
        assertNotNull("No subquery defined", subqDef);
        org.datanucleus.store.query.Query subq = subqDef.getQuery();
        assertNull("Subquery1 filter is not null", subq.getFilter());
        SubqueryDefinition subqDef2 = query.getSubqueryForVariable("DN_SUBQUERY_2");
        assertNotNull("No subquery defined", subqDef2);
        org.datanucleus.store.query.Query subq2 = subqDef2.getQuery();
        assertNull("Subquery2 filter is not null", subq2.getFilter());
    } catch (NucleusUserException e) {
        fail("Exception thrown in parse " + e.getMessage());
    }
}

Example 7 with JPQLSingleStringParser

use of org.datanucleus.query.JPQLSingleStringParser in project tests by datanucleus.

the class JPQLSingleStringParserTest method testSubquery.

/**
 * Test for the parse of a subquery and conversion into the correct components.
 */
public void testSubquery() {
    EntityManager em = emf.createEntityManager();
    String str = "SELECT T FROM org.jpox.samples.MyClass T WHERE T.field1 < (SELECT AVG(S.price) FROM org.jpox.samples.MyClass S)";
    Query q = em.createQuery(str);
    AbstractJPQLQuery query = (AbstractJPQLQuery) ((JPAQuery) q).getInternalQuery();
    JPQLSingleStringParser parser = new JPQLSingleStringParser(query, str);
    try {
        parser.parse();
        assertEquals("Filter is incorrect", "T.field1 < DN_SUBQUERY_1", query.getFilter());
        SubqueryDefinition subqDef = query.getSubqueryForVariable("DN_SUBQUERY_1");
        assertNotNull("No subquery defined", subqDef);
        org.datanucleus.store.query.Query subq = subqDef.getQuery();
        assertEquals("Subquery result is incorrect", "AVG(S.price)", subq.getResult());
        assertNull("Subquery filter is not null", subq.getFilter());
    } catch (NucleusUserException e) {
        fail("Exception thrown in parse " + e.getMessage());
    }
}