IdentifierProjection (Hibernate Core Aggregator 3.6.10.Final API)

java.lang.Object
- org.hibernate.criterion.SimpleProjection
- - org.hibernate.criterion.IdentifierProjection

All Implemented Interfaces:

Serializable, EnhancedProjection, Projection
```
public class IdentifierProjection
extends SimpleProjection
```
A property value, or grouped property value

Author:

Gavin King

See Also:
Serialized Form

Constructor Summary

Constructors
Modifier Constructor and Description

protected IdentifierProjection()

protected IdentifierProjection(boolean grouped)

Constructors
Modifier	Constructor and Description
`protected`	`IdentifierProjection()`
`protected`	`IdentifierProjection(boolean grouped)`

Method Summary

Methods
Modifier and Type	Method and Description
`Type[]`	`getTypes(Criteria criteria, CriteriaQuery criteriaQuery)` Types returned by the rendered SQL `fragment`.
`boolean`	`isGrouped()` Is this projection fragment (`SELECT` clause) also part of the `GROUP BY`
`String`	`toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery)` Render the SQL fragment to be used in the `GROUP BY` clause
`String`	`toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)` Render the SQL fragment to be used in the `SELECT` clause.
`String`	`toString()`

Methods inherited from class org.hibernate.criterion.SimpleProjection
as, getAliases, getColumnAliases, getColumnAliases, getColumnAliases, getColumnAliases, getColumnCount, getTypes

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

- Constructor Detail
  - IdentifierProjection
```
protected IdentifierProjection(boolean grouped)
```
  - IdentifierProjection
```
protected IdentifierProjection()
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getTypes
```
public Type[] getTypes(Criteria criteria,
              CriteriaQuery criteriaQuery)
                throws HibernateException
```
    Description copied from interface: Projection
    
    Types returned by the rendered SQL fragment. In other words what are the types that would represent the values this projection asked to be pulled into the result set?
    
    Parameters:
    criteria - The local criteria to which this project is attached (for resolution).
    criteriaQuery - The overall criteria query instance.
    
    Returns:
    The return types.
    
    Throws:
    
    HibernateException - Indicates a problem resolving the types
  - toSqlString
```
public String toSqlString(Criteria criteria,
                 int position,
                 CriteriaQuery criteriaQuery)
                   throws HibernateException
```
    Description copied from interface: Projection
    
    Render the SQL fragment to be used in the SELECT clause.
    
    Parameters:
    criteria - The local criteria to which this project is attached (for resolution).
    position - The number of columns rendered in the SELECT clause before this projection. Generally speaking this is useful to ensure uniqueness of the individual columns aliases.
    criteriaQuery - The overall criteria query instance.
    
    Returns:
    The SQL fragment to plug into the SELECT
    
    Throws:
    
    HibernateException - Indicates a problem performing the rendering
  - isGrouped
```
public boolean isGrouped()
```
    Description copied from interface: Projection
    
    Is this projection fragment (SELECT clause) also part of the GROUP BY
    
    Specified by:
    
    isGrouped in interface Projection
    
    Overrides:
    
    isGrouped in class SimpleProjection
    
    Returns:
    True if the projection is also part of the GROUP BY; false otherwise.
  - toGroupSqlString
```
public String toGroupSqlString(Criteria criteria,
                      CriteriaQuery criteriaQuery)
                        throws HibernateException
```
    Description copied from interface: Projection
    
    Render the SQL fragment to be used in the GROUP BY clause
    
    Specified by:
    
    toGroupSqlString in interface Projection
    
    Overrides:
    
    toGroupSqlString in class SimpleProjection
    
    Parameters:
    criteria - The local criteria to which this project is attached (for resolution).
    criteriaQuery - The overall criteria query instance.
    
    Returns:
    The SQL fragment to plug into the GROUP BY
    
    Throws:
    
    HibernateException - Indicates a problem performing the rendering

Class IdentifierProjection

Constructor Summary

Method Summary

Methods inherited from class org.hibernate.criterion.SimpleProjection

Methods inherited from class java.lang.Object

Constructor Detail

IdentifierProjection

IdentifierProjection

Method Detail

toString

getTypes

toSqlString

isGrouped

toGroupSqlString