November 2017
Beginner to intermediate
290 pages
7h 34m
English
book
Learning Apache Apex
by Ananth Gundabattula, Thomas Weise, Munagala V. Ramanath, David Yan, Kenneth Knowles
Content preview from Learning Apache Apex
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Development process and methodology
Development of an Apex application starts with mapping the functional specification to operators (smaller functional building blocks), which can then be composed into a DAG to collectively provide the functionality required for the use case.
This involves identifying the data sources, formats, transformations and sinks for the application, and finding matching operators from the Apex library (which will be covered in the next chapter). In most cases, the required connectors will be available from the library that support frequent sources, such as files and Kafka, along with many other external systems that are part of the Apache Big Data ecosystem.
With the comprehensive operator library and set of examples ...
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