Transform functions are customized Groovy functions
available in Big Data Discovery that you can include in your transformation
scripts. Each transform function performs a specific operation on your data,
from simple ones, such as converting an attribute to a different data type, to
more complex ones, such as determining the overall sentiment of a document or a
string of text.
Big Data Discovery provides these types of custom transform functions:
- Conversion functions
convert values to different data types.
- Date functions
perform actions on Date objects, such as adding a specific amount of time to a
Date.
- Enrichment functions
are based on Data Enrichment modules in Big Data Discovery. You can use them to
extract complex information from your data.
- Geocode functions
perform actions on Geocode objects, such as calculating the distance between
two Geocode objects.
- Math functions
perform mathematical operations on numerical values.
- Set functions perform
different actions on sets of values on multi-value attributes in Big Data
Discovery, such as obtaining the size of the value set, checking whether a set
is empty, or converting a multi-value attribute to a single-value attribute.
Set functions only work on multi-value (also known as multi-assign) attributes.
- String functions
perform different actions on String values, such as concatenating two String
values, or splitting a single String into multiple values.
