What are Lambdas in Java?
In general a lambda expression is an anonymous function, which means for some combination of inputs, there is a specific output. In the context of Java, a lambda expression is…
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January 25, 2021
Creating a Simple Kafka Consumer
Apache Kafka is a fault tolerant publish-subscribe streaming platform that lets you process streams of records as they occur. If you haven’t installed Kafka yet, see our Kafka Quickstart Tutorial…
January 25, 2021
Creating a Simple Kafka Producer in Java
Apache Kafka is a fault tolerant publish-subscribe streaming platform that lets you process streams of records as they occur. If you haven’t installed Kafka yet, see our Kafka Quickstart Tutorial…
January 25, 2021
How to Decode URLs in Hive
Decoding URLs and strings can be a common task, especially when working with web data. This is easy to do in a language like Java or Python, but what about…
January 25, 2021
Writing to a Database from Spark
One of the great features of Spark is the variety of data sources it can read from and write to. If you already have a database to write to, connecting…
January 25, 2021
Loading Data from a Database into Spark
One of the great features of Spark is the variety of data sources it can read from. Loading data from a database into Spark using JDBC requires 3 major steps.…
January 25, 2021
The Difference between GUID and UUID
GUID (Global Unique Identifier) and UUID (Universally Unique Identifier) are different implementations of the same idea. GUIDs and UUIDs are used as IDs (to identify) unique objects or records. These…
January 25, 2021