Creating a Many-to-Many View Link Definition

Oracle ADF view links are business components that define a relationship between two Oracle ADF view object definitions. Many-to-many view links are complex view links that represent many-to-many relationships. For more information, see About Oracle ADF View Links.

Note: You can only define a many-to-many view link between view object definitions if each view object definition contains at least one entity object usage. For more information, see the related topics list.

To create a many-to-many view link definition:

Make sure you have defined a many-to-many association between one entity object used in each view object definition.
Make sure the view object definitions contain view object attributes that are mapped to the source and destination entity object attributes from the association. For example, if the source and destination attributes of the association are Products.ProductId and Warehouses.WarehouseId, make sure one view object definition contains an attribute mapped to ProductId and the other contains an attribute mapped to WarehouseId. If not, add those view object attributes.
Open the View Object Wizard or the View Object Editor by doing one of the following:
- In the System or Application Navigator, right-click a Oracle ADF Business Components package and choose New View Link.
- On a diagram, select the View Link icon on the Business Components Component Palette for the diagram and then click on the source and destination view objects for the view link. For more information on modeling business components, see About Modeling Business Components.
On the View Objects page of the wizard, make sure you do the following:
- In the C ardinality dropdown, select * to * .
- Select the many-to-many association for both the source and the destination attributes and click A dd.
If you need further assistance on this or any other page of the wizard, click H elp.