return;
}
// get left entity
final EjbRelationshipRole leftRole = roles.get(0);
final RelationshipRoleSource leftRoleSource = leftRole.getRelationshipRoleSource();
final String leftEjbName = leftRoleSource == null ? null : leftRoleSource.getEjbName();
final Entity leftEntity = entitiesByEjbName.get(leftEjbName);
// get right entity
final EjbRelationshipRole rightRole = roles.get(1);
final RelationshipRoleSource rightRoleSource = rightRole.getRelationshipRoleSource();
final String rightEjbName = rightRoleSource == null ? null : rightRoleSource.getEjbName();
final Entity rightEntity = entitiesByEjbName.get(rightEjbName);
// neither left or right have a mapping which is fine
if (leftEntity == null && rightEntity == null) {
return;