MEMBER OF predicate

This expression tests whether the object reference specified by the single valued path expression or input parameter is a member of the designated collection. If the collection valued path expression designates an empty collection the value of the MEMBER OF expression is FALSE

{ single-valued-path-expression | input_parameter } [ NOT ] MEMBER [ OF ] collection-valued-path-expression

 

Example: MEMBER OF predicate

Find employees that

are not members of a given department number

SELECT OBJECT(e) FROM EmpBean e , DeptBean d 
WHERE e NOT MEMBER OF d.emps AND d.deptno = ?1

Find employees whose manager is a member of a given department number

SELECT OBJECT(e) FROM EmpBean e, DeptBean d 
WHERE e.dept.mgr MEMBER  OF d.emps  and d.deptno=?1

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See Also

EJB query language
WHERE clause

 

Related Tasks

Using EJB query

 

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