SqlSelectionExpression (Hibernate Javadocs)

java.lang.Object
- org.hibernate.sql.ast.tree.expression.SqlSelectionExpression

All Implemented Interfaces:

SqlSelectionProducer, Expression, SqlAstNode
```
public class SqlSelectionExpression
extends Object
implements Expression
```
Represents a selection that is "re-used" in certain parts of the query other than the select-clause (mainly important for order-by, group-by and having). Allows usage of the selection position within the select-clause in that other part of the query rather than the full expression

Constructor Summary

Constructors
Constructor Description

SqlSelectionExpression(SqlSelection theSelection)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(SqlAstWalker sqlTreeWalker)`
`ColumnReference`	`getColumnReference()`
`JdbcMappingContainer`	`getExpressionType()`	The type for this expression
`SqlSelection`	`getSelection()`

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

Methods inherited from interface org.hibernate.sql.ast.tree.expression.Expression
createDomainResultSqlSelection, createDomainResultSqlSelection, createSqlSelection, createSqlSelection

- Constructor Detail
  - SqlSelectionExpression
```
public SqlSelectionExpression(SqlSelection theSelection)
```
- Method Detail
  - getSelection
```
public SqlSelection getSelection()
```
  - getColumnReference
```
public ColumnReference getColumnReference()
```
    Specified by:
    
    getColumnReference in interface Expression
  - accept
```
public void accept(SqlAstWalker sqlTreeWalker)
```
    Specified by:
    
    accept in interface SqlAstNode
  - getExpressionType
```
public JdbcMappingContainer getExpressionType()
```
    Description copied from interface: Expression
    
    The type for this expression
    
    Specified by:
    
    getExpressionType in interface Expression