OrderingTranslator (cayenne-doc: Cayenne Documentation 4.1 API)

java.lang.Object
- org.apache.cayenne.access.translator.select.QueryAssemblerHelper
- - org.apache.cayenne.access.translator.select.OrderingTranslator

public class OrderingTranslator
extends QueryAssemblerHelper

Translates query ordering to SQL.

Field Summary

Fields
Modifier and Type Field Description

protected List<String> orderByColumnList
- Fields inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper
  out, queryAssembler, strategy

Constructor Summary

Constructors
Constructor Description

OrderingTranslator(QueryAssembler queryAssembler)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`appendFunction(Expression exp)`
`protected void`	`doAppendPart()`	Translates query Ordering list to SQL ORDER BY clause.
`List<String>`	`getOrderByColumnList()`	Returns the column expressions (not Expressions) used in the order by clause.

Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper
appendDbPath, appendLikeEscapeCharacter, appendLiteral, appendLiteralDirect, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination, processRelTermination, setForceJoinForRelations

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - orderByColumnList
```
protected List<String> orderByColumnList
```
- Constructor Detail
  - OrderingTranslator
```
public OrderingTranslator(QueryAssembler queryAssembler)
```
- Method Detail
  - doAppendPart
```
protected void doAppendPart()
```
    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:
    
    doAppendPart in class QueryAssemblerHelper
    
    Since:
    
    3.0
  - appendFunction
```
protected void appendFunction(Expression exp)
```
  - getOrderByColumnList
```
public List<String> 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>)