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Java Source Code / Java Documentation » Database ORM » hibernate » org.hibernate.criterion

Source Cross Reference Class Diagram Java Document (Java Doc)

org.hibernate.criterion .Projection

All known Subclasses:   org.hibernate.criterion .ProjectionList,  org.hibernate.criterion .SQLProjection,  org.hibernate.criterion .Distinct,  org.hibernate.criterion .SimpleProjection,  org.hibernate.criterion .AliasedProjection,
Projection
public interface Projection extends Serializable(Code)
An object-oriented representation of a query result set projection in a Criteria query. Built-in projection types are provided by the Projections factory class. This interface might be implemented by application classes that define custom projections.
See Also:   Projections
See Also:   org.hibernate.Criteria
author:
   Gavin King

Method Summary
public String[] getAliases()
     Get the user-visible aliases for this projection (ie.
public String[] getColumnAliases(int loc)

public String[] getColumnAliases(String alias, int loc)

public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery)

public Type[] getTypes(String alias, Criteria criteria, CriteriaQuery criteriaQuery)

public boolean isGrouped()

public String toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery)

public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)


Method Detail
getAliases
public String[] getAliases()(Code)
Get the user-visible aliases for this projection (ie. the ones that will be passed to the ResultTransformer)

getColumnAliases
public String[] getColumnAliases(int loc)(Code)
Get the SQL select clause column aliases

getColumnAliases
public String[] getColumnAliases(String alias, int loc)(Code)
Get the SQL select clause column aliases for a particular user-visible alias

getTypes
public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException(Code)
Return types returned by the rendered SQL fragment
Parameters:
  criteria -
Parameters:
  criteriaQuery - Type[]
throws:
  HibernateException -

getTypes
public Type[] getTypes(String alias, Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException(Code)
Return types for a particular user-visible alias

isGrouped
public boolean isGrouped()(Code)
Does this projection specify grouping attributes?

toGroupSqlString
public String toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException(Code)
Render the SQL fragment to be used in the group by clause
Parameters:
  criteriaQuery -
Parameters:
  columnAlias - String
throws:
  HibernateException -

toSqlString
public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery) throws HibernateException(Code)
Render the SQL fragment
Parameters:
  criteriaQuery -
Parameters:
  columnAlias - String
throws:
  HibernateException -

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