May 2017
Intermediate to advanced
294 pages
7h 33m
English
Content preview from Apache Spark 2.x Cookbook
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Inferring schema using case classes
In schema-aware formats, such as Parquet and JSON. This is far from the reality, though. A lot of the time data comes in raw format. The next two recipes will cover how to attach a schema to raw data.
In an ideal world, data is stored in schema-aware formats, such as Parquet and JSON. This is far from the reality, though. A lot of the time, data comes in raw format. The next two recipes will cover how to attach a schema to raw data. Case classes are special classes in Scala that provide you with the boilerplate implementation of the constructor, getters (accessors), equals, and hashCode to implement Serializable. Case classes work really well to encapsulate data as objects. Readers familiar with Java, ...
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