The Seven Relationship TypesAbstract Persistence SchemaDatabase ModelingOne-to-One, Unidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaOne-to-One, Bidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaOne-to-Many, Unidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaThe Cruise, Ship, and Reservation EJBsMany-to-One, Unidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaOne-to-Many, Bidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaMany-to-Many, Bidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaMany-to-Many, Unidirectional RelationshipRelational database schemaAbstract programming modelAbstract persistence schemaCo-Location and the Deployment DescriptorCascade Delete and Remove