org.apache.cayenne.access.trans
Class OrderingTranslator
java.lang.Object
org.apache.cayenne.access.trans.QueryAssemblerHelper
org.apache.cayenne.access.trans.OrderingTranslator
public class OrderingTranslator
- extends QueryAssemblerHelper
Translates query ordering to SQL.
- Author:
- Andrus Adamchik, Craig Miskell
Methods inherited from class org.apache.cayenne.access.trans.QueryAssemblerHelper |
appendDbPath, appendLiteral, appendLiteralDirect, appendObjPath, getDbEntity, getObjEntity, getQueryAssembler, paramsDbType, processColumn, processColumn, processColumn, processRelTermination, processRelTermination, setQueryAssembler |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
orderByColumnList
protected List orderByColumnList
OrderingTranslator
public OrderingTranslator(QueryAssembler queryAssembler)
doTranslation
public String doTranslation()
- Translates query Ordering list to SQL ORDER BY clause.
Ordering list is obtained from
queryAssembler
's query object.
In a process of building of ORDER BY clause, queryAssembler
is notified when a join needs to be added.
- Specified by:
doTranslation
in class QueryAssemblerHelper
getOrderByColumnList
public List getOrderByColumnList()
- Returns the column expressions (not Expressions) used in
the order by clause. E.g., in the case of an case-insensitive
order by, an element of the list would be
UPPER(<column reference>)
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