As discussed in Aggregate UDFs, the parameter list includes an array of com.teradata.fnc.Context objects.
The Context class provides methods that are useful for aggregate functions.
| Method | Description |
|---|---|
| initCtx() | Allocates and initializes the aggregate intermediate storage area. An aggregate UDF uses this method in the Phase.AGR_INIT phase of aggregation. |
| getBytes() | Returns data that was stored in one of two intermediate aggregate storage areas. |
| getObject() | |
| setBytes() | Stores intermediate results specified by obj into the aggregate storage area. |
| setObject() |