org.apache.openjpa.persistence.query
Class IsNullExpression
java.lang.Object
org.apache.openjpa.persistence.query.AbstractVisitable
org.apache.openjpa.persistence.query.UnaryExpressionPredicate
org.apache.openjpa.persistence.query.IsNullExpression
- All Implemented Interfaces:
- Serializable, Predicate, Visitable
public class IsNullExpression
- extends UnaryExpressionPredicate
Denotes e IS NULL Expression.
- Author:
- Pinaki Poddar
- See Also:
- Serialized Form
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
IsNullExpression
public IsNullExpression(Expression op)
asExpression
public String asExpression(AliasContext ctx)
- Description copied from interface:
Visitable
- Get a JPQL fragment as used in WHERE clause.
- Specified by:
asExpression
in interface Visitable
- Overrides:
asExpression
in class UnaryExpressionPredicate
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