Network Deployment (Distributed operating systems), v8.0 > Develop and deploying applications > Develop Dynamic and EJB query > Develop applications that use EJB query > EJB query language > WHERE clause

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

EJB query language
WHERE clause
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