Package org.apache.metamodel.query

Examples of org.apache.metamodel.query.Query.having()

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        Column contributorIdColumn = table2.getColumnByName(COLUMN_ROLE_CONTRIBUTOR_ID);

        q.groupBy(roleColumn);
        SelectItem countSelectItem = new SelectItem(FunctionType.COUNT, contributorIdColumn).setAlias("my_count");
        q.select(new SelectItem(roleColumn), countSelectItem);
        q.having(new FilterItem(countSelectItem, OperatorType.GREATER_THAN, 1));
        q.orderBy(new OrderByItem(countSelectItem));
        assertEquals(
                "SELECT c.name, COUNT(c.contributor_id) AS my_count FROM MetaModelSchema.role c GROUP BY c.name HAVING COUNT(c.contributor_id) > 1 ORDER BY COUNT(c.contributor_id) ASC",
                q.toString());
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        Column contributorIdColumn = table2.getColumnByName(COLUMN_ROLE_CONTRIBUTOR_ID);

        q.groupBy(roleColumn);
        SelectItem countSelectItem = new SelectItem(FunctionType.COUNT, contributorIdColumn).setAlias("my_count");
        q.select(new SelectItem(roleColumn));
        q.having(new FilterItem(countSelectItem, OperatorType.GREATER_THAN, 3));
        assertEquals("SELECT c.name FROM MetaModelSchema.role c GROUP BY c.name HAVING COUNT(c.contributor_id) > 3",
                q.toString());

        DataSet data = getDataContext().executeQuery(q);
        assertTrue(data.next());
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        assertEquals("Row[values=[developer]]", data.getRow().toString());
        assertFalse(data.next());
        data.close();

        q.getHavingClause().removeItems();
        q.having(new FilterItem(SelectItem.getCountAllItem(), OperatorType.GREATER_THAN, 3));
        assertEquals("SELECT c.name FROM MetaModelSchema.role c GROUP BY c.name HAVING COUNT(*) > 3", q.toString());
        data = getDataContext().executeQuery(q);
        assertTrue(data.next());
        assertEquals("Row[values=[developer]]", data.getRow().toString());
        assertFalse(data.next());
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