Anyone know a way to apply condition to view-entity and then left join to another view-entity?

[Christian Carlow]

Does anyone know a way to apply a condition to a view-entity and then 
left join it to another view-entity?

I need to be able to apply a condition to the OrderShipment entity where 
shipmentId = parameters.shipmentId and then left join this conditioned 
view-entity to another view-entity.

I couldn't figure out how to do it with DynamicViewEntity.