| The ejb-relationship-roleType describes a role within a
relationship. There are two roles in each relationship.
The ejb-relationship-roleType contains an optional
description; an optional name for the relationship role; a
specification of the multiplicity of the role; an optional
specification of cascade-delete functionality for the role;
the role source; and a declaration of the cmr-field, if any,
by means of which the other side of the relationship is
accessed from the perspective of the role source.
The multiplicity and role-source element are mandatory.
The relationship-role-source element designates an entity
bean by means of an ejb-name element. For bidirectional
relationships, both roles of a relationship must declare a
relationship-role-source element that specifies a cmr-field
in terms of which the relationship is accessed. The lack of
a cmr-field element in an ejb-relationship-role specifies
that the relationship is unidirectional in navigability and
the entity bean that participates in the relationship is
"not aware" of the relationship.
Example:
Product-LineItem
product-has-lineitems
One
ProductEJB
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