Package org.hibernate.criterion
Class IdentifierProjection
- java.lang.Object
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- org.hibernate.criterion.SimpleProjection
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- org.hibernate.criterion.IdentifierProjection
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- All Implemented Interfaces:
Serializable
,EnhancedProjection
,Projection
public class IdentifierProjection extends SimpleProjection
A property value, or grouped property value- See Also:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor Description protected
IdentifierProjection()
Constructs a non-grouped identifier projection
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Type[]
getTypes(Criteria criteria, CriteriaQuery criteriaQuery)
Types returned by the rendered SQLfragment
.boolean
isGrouped()
Is this projection fragment (SELECT clause) also part of the GROUP BYString
toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
Render the SQL fragment to be used in the GROUP BY clauseString
toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)
Render the SQL fragment to be used in the SELECT clause.String
toString()
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Methods inherited from class org.hibernate.criterion.SimpleProjection
as, getAliases, getColumnAliases, getColumnAliases, getColumnAliases, getColumnAliases, getColumnCount, getTypes
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Constructor Detail
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IdentifierProjection
protected IdentifierProjection()
Constructs a non-grouped identifier projection- See Also:
Projections.id()
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Method Detail
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getTypes
public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery)
Description copied from interface:Projection
Types returned by the rendered SQLfragment
. 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.
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toSqlString
public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery)
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
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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 interfaceProjection
- Overrides:
isGrouped
in classSimpleProjection
- Returns:
- True if the projection is also part of the GROUP BY; false otherwise.
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toGroupSqlString
public String toGroupSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
Description copied from interface:Projection
Render the SQL fragment to be used in the GROUP BY clause- Specified by:
toGroupSqlString
in interfaceProjection
- Overrides:
toGroupSqlString
in classSimpleProjection
- 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
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