| 1 | /**
|
| 2 | * A format of specifying the filter function for various join operation.
|
| 3 | * The format is similiar to the ANSI SQL join conditions as follows:
|
| 4 | *
|
| 5 | * ( join_instance ) =>
|
| 6 | * join_instance.{name of first DM}.{ field name} { condition } join_instance.{name of first DM}.{ field name}
|
| 7 | *
|
| 8 | * for example
|
| 9 | * ```
|
| 10 | * obj => obj.[newdm.getName()].Origin === obj.[anotherNewDm.getName()].Origin).getData())
|
| 11 | * ```
|
| 12 | * Above we wrote a function which will recieve a join object containing reference of both
|
| 13 | * dataModels from where we refer each dataModels by its name ( using datamodel.getName()),then
|
| 14 | * we specify the field on which the conditional operator will be applied
|
| 15 | * then we give condition operator and the same is done in RHS for the another field of another
|
| 16 | * datamodel.
|
| 17 | *
|
| 18 | * @public
|
| 19 | */
|