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java.lang.Objectorg.apache.openjpa.jdbc.meta.JDBCColumnOrder
class JDBCColumnOrder
Order by a synthetic order column.
| Field Summary |
|---|
| Fields inherited from interface org.apache.openjpa.meta.Order |
|---|
ELEMENT |
| Constructor Summary | |
|---|---|
JDBCColumnOrder()
|
|
| Method Summary | |
|---|---|
Column |
getColumn()
The synthetic column. |
ColumnIO |
getColumnIO()
I/O restrictions for the synthetic column. |
Comparator<?> |
getComparator()
Return a comparator for ordering by this element, or null if the ordering is done in the datastore. |
DBIdentifier |
getIdentifier()
|
String |
getName()
Deprecated. |
boolean |
isAscending()
Order direction. |
boolean |
isInRelation()
Whether the value is a member of the field's related type, rather than columns of the field itself. |
void |
order(Select sel,
ClassMapping elem,
Joins joins)
Order by this value. |
void |
setColumn(Column col)
The synthetic column. |
void |
setColumnIO(ColumnIO io)
I/O restrictions for the synthetic column. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
JDBCColumnOrder()
| Method Detail |
|---|
public Column getColumn()
public void setColumn(Column col)
public ColumnIO getColumnIO()
public void setColumnIO(ColumnIO io)
public String getName()
Order
getName in interface Orderpublic DBIdentifier getIdentifier()
getIdentifier in interface JDBCOrderpublic boolean isAscending()
Order
isAscending in interface Orderpublic Comparator<?> getComparator()
Order
getComparator in interface Orderpublic boolean isInRelation()
JDBCOrder
isInRelation in interface JDBCOrder
public void order(Select sel,
ClassMapping elem,
Joins joins)
JDBCOrder
order in interface JDBCOrderelem - if this value has independent mappings, the mapping
we're selecting
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