org.hibernate.criterion
Class RowCountProjection

java.lang.Object
  extended by org.hibernate.criterion.SimpleProjection
      extended by org.hibernate.criterion.RowCountProjection
All Implemented Interfaces:
Serializable, EnhancedProjection, Projection

public class RowCountProjection
extends SimpleProjection

A row count

See Also:
Serialized Form

Constructor Summary
RowCountProjection()
           
 
Method Summary
protected  SQLFunction getFunction(CriteriaQuery criteriaQuery)
           
 Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery)
          Types returned by the rendered SQL fragment.
 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, isGrouped, toGroupSqlString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

RowCountProjection

public RowCountProjection()
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

getFunction

protected SQLFunction getFunction(CriteriaQuery criteriaQuery)


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