While not strictly file based, there are alternative methods for storing intermediate data which are more efficient than using temporary files, so long as there is enough memory to hold the temporary data. This recipe shows how to do this using the
jo_cook_ch08_0040_temporaryDatatHashMap job. You will notice that this is the same job as in the previous recipe.
The steps for storing intermediate data in memory using
tHashMap are as follows:
tHashInputcomponent, having a generic schema of