Package org.hibernate.criterion
Class NullExpression
- java.lang.Object
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- org.hibernate.criterion.NullExpression
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- All Implemented Interfaces:
Serializable
,Criterion
public class NullExpression extends Object implements Criterion
Constrains a property to be null- See Also:
- Serialized Form
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Constructor Summary
Constructors Modifier Constructor Description protected
NullExpression(String propertyName)
Constructs a NullExpression
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TypedValue[]
getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
Return typed values for all parameters in the rendered SQL fragmentString
toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
Render the SQL fragmentString
toString()
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Constructor Detail
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NullExpression
protected NullExpression(String propertyName)
Constructs a NullExpression- Parameters:
propertyName
- The name of the property to check for null- See Also:
Restrictions.isNull(java.lang.String)
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Method Detail
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toSqlString
public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException
Description copied from interface:Criterion
Render the SQL fragment- Specified by:
toSqlString
in interfaceCriterion
- Parameters:
criteria
- The local criteriacriteriaQuery
- The overall criteria query- Returns:
- The generated SQL fragment
- Throws:
HibernateException
- Problem during rendering.
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getTypedValues
public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException
Description copied from interface:Criterion
Return typed values for all parameters in the rendered SQL fragment- Specified by:
getTypedValues
in interfaceCriterion
- Parameters:
criteria
- The local criteriacriteriaQuery
- The overall criteria query- Returns:
- The types values (for binding)
- Throws:
HibernateException
- Problem determining types.
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