Examples of org.exolab.castor.jdo.QueryResults.absolute()

Class org.exolab.castor.jdo.QueryResults

Examples of org.exolab.castor.jdo.QueryResults.absolute()

org.exolab.castor.jdo.QueryResults.absolute()
moves the result of the query to the absolute position in the resultset. @param row The row to move to @return ??? @throws PersistenceException A persistence error occured

    public void testAbsoluteA() throws PersistenceException {
        _db.begin();
        OQLQuery oqlquery = _db.getOQLQuery(
                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));

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        _db.begin();
        OQLQuery oqlquery = _db.getOQLQuery(
                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));
        _db.commit();

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        OQLQuery oqlquery = _db.getOQLQuery(
                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));
        _db.commit();
    }

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                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));
        _db.commit();
    }

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        QueryResults enumeration = oqlquery.execute(true);
        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));
        _db.commit();
    }


    /**

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        assertTrue("should have been able to move to 1", enumeration.absolute(1));
        assertTrue("should have been able to move to 5", enumeration.absolute(5));
        assertTrue("should have been able to move to 10", enumeration.absolute(10));
        assertTrue("should have been able to move to 15", enumeration.absolute(15));
        assertTrue("should have been able to move to 20", enumeration.absolute(20));
        assertTrue("should have been able to move to 25", enumeration.absolute(25));
        _db.commit();
    }


    /**
     * Test going through enumeration and calling absolute

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        QueryResults enumeration = oqlquery.execute(true);
        int next = 1;
        boolean hasMore = true;
        while (enumeration.hasMore() && hasMore) {
            LOG.debug("at: " + next);
            hasMore = enumeration.absolute(next);
            next++;
        }
        _db.commit();
    }

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    public void testAbsoluteC() throws PersistenceException {
        _db.begin();
        OQLQuery oqlquery = _db.getOQLQuery(
                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertFalse("shouldn't be able to move to -50", enumeration.absolute(-50));
        assertFalse("shouldn't be able to move to 99999", enumeration.absolute(99999));
        _db.commit();
    }


    /**

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        _db.begin();
        OQLQuery oqlquery = _db.getOQLQuery(
                "SELECT object FROM " + Entity.class.getName() + " object");
        QueryResults enumeration = oqlquery.execute(true);
        assertFalse("shouldn't be able to move to -50", enumeration.absolute(-50));
        assertFalse("shouldn't be able to move to 99999", enumeration.absolute(99999));
        _db.commit();
    }


    /**
     * Should fail with a non scrollable resultset.?

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            _db.begin();
            OQLQuery oqlquery = _db.getOQLQuery(
                    "SELECT object FROM " + Entity.class.getName() + " object");
            QueryResults enumeration = oqlquery.execute(false);
            // following should fail.
            enumeration.absolute(5);
            _db.commit();
            fail("Calling absolute on a non-scrollable resultset should fail");
        } catch (Exception ex) {
            assertTrue(true);
        }

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