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http://issues.apache.org/bugzilla/show_bug.cgi?id=31446 Proposal for a set of new ResultSetHandlers. Summary: Proposal for a set of new ResultSetHandlers. Product: Commons Version: 1.0 Final Platform: All OS/Version: All Status: NEW Severity: Enhancement Priority: Other Component: DbUtils AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] Add set of ResultSetHandlers that return a Map instead of List. For each row, key is determined (default is first column, user can specify column index/name in constructor). Next the row is converted to scalar, Array, Map or bean and stored in the Map under key. object Array Map Bean ----------------- ---------------- -------------- --------------- ColumnMapHandler ArrayMapHandler MapMapHandler BeanListHandler Examples: String; sql = "select user_id, user_name, last_login from passwd"; Map users = (Map)run.query( "select user_id, user_name from passwd", new ColumnMapHandler()); System.out.println(users.get("usr007")); Map users = (Map)run.query(sql, new ArrayMapArray()); System.out.println(users.get("usr007")[2]); Map users = (Map)run.query(sql, new MapMapArray()); System.out.println(users.get("usr007").get("last_login")); Map users = (Map)run.query(sql, new MapBeanArray(TestBean.class)); System.out.println(users.get("usr007").getLastLogin()); Implementation note: Map implementation is LinkedHashMap. This class does preserve order of insertions, thus, the sorting can be done in sql. However this class is @since 1.4. Attached is source code (based on HEAD) and test cases. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
