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org.hibernate.criterion
Interface Projection
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public interface Projection
extends Serializable
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.
SinceNot specified.
VersionNot specified.
AuthorGavin King
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Method Summary
String[] getAliases()
Get the user-visible aliases for this projection (ie.
String[] getColumnAliases( int loc )
Get the SQL select clause column aliases
String[] getColumnAliases( String alias, int loc )
Get the SQL select clause column aliases for a particular user-visible alias
Type[] getTypes( Criteria criteria, CriteriaQuery criteriaQuery )
Return types returned by the rendered SQL fragment
Type[] getTypes( String alias, Criteria criteria, CriteriaQuery criteriaQuery )
Return types for a particular user-visible alias
boolean isGrouped()
Does this projection specify grouping attributes?
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
Method Detail
getAliases
public String[] getAliases ( )
Get the user-visible aliases for this projection (ie. the ones that will be passed to the ResultTransformer)
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getColumnAliases
public String[] getColumnAliases ( int loc )
Get the SQL select clause column aliases
Parameters
TypeNameDescription
int loc No description provided.
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getColumnAliases
public String[] getColumnAliases ( String alias, int loc )
Get the SQL select clause column aliases for a particular user-visible alias
Parameters
TypeNameDescription
String alias No description provided.
int loc No description provided.
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getTypes
public Type[] getTypes ( Criteria criteria, CriteriaQuery criteriaQuery )
throws
Return types returned by the rendered SQL fragment
Parameters
TypeNameDescription
Criteria criteria No description provided.
CriteriaQuery criteriaQuery No description provided.
Exceptions
HibernateException No description provided.
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getTypes
public Type[] getTypes ( String alias, Criteria criteria, CriteriaQuery criteriaQuery )
throws
Return types for a particular user-visible alias
Parameters
TypeNameDescription
String alias No description provided.
Criteria criteria No description provided.
CriteriaQuery criteriaQuery No description provided.
Exceptions
HibernateException No description provided.
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isGrouped
public boolean isGrouped ( )
Does this projection specify grouping attributes?
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toGroupSqlString
public String toGroupSqlString ( Criteria criteria, CriteriaQuery criteriaQuery )
throws
Render the SQL fragment to be used in the group by clause
Parameters
TypeNameDescription
Criteria criteria No description provided.
CriteriaQuery criteriaQuery No description provided.
Exceptions
HibernateException No description provided.
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toSqlString
public String toSqlString ( Criteria criteria, int position, CriteriaQuery criteriaQuery )
throws
Render the SQL fragment
Parameters
TypeNameDescription
Criteria criteria No description provided.
int position No description provided.
CriteriaQuery criteriaQuery No description provided.
Exceptions
HibernateException No description provided.
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