The DataSource
interface includes the following methods:
createCubeDataDirector
-- Returns a CubeDataDirector
interface
createRelationalDataDirector
-- Returns a RelationalDataDirector
interface
The following table shows the default type of DataDirector
that is created by each presentation bean.
Presentation Bean |
Type of DataDirector |
---|---|
Table |
Creates a relational |
Crosstab |
Creates a cube |
Graph |
Creates either a relational or a cube |
Presentation beans require that there is a meaningful implementation of at
least one of the methods in the DataSource
interface. The other
method can
return Null
.