Lambda Expressions and the Stream API in Java 8

Lambda Expressions and the Stream API in Java 8

Tuesday, June 17, 2014

Lambda expressions have finally come to Java, allowing behavior to be assigned to variables and passed into methods as well as data. We’ll have a look at the syntax for lambda expressions, see how they can replace anonymous inner classes, and experiment with the various functional interfaces provided in the standard library.
Using lambda expressions, the new Stream API for Collections allows developers to break out of the traditional, imperative, ‘for/while’ style of collection manipulation in favor of a syntax that is far more expressive and intentional. We’ll take a quick look at how we can replace basic looping constructs with streams before moving on to producing more complex data manipulations using dynamic strategies. Finally, we’ll see how we can reduce execution times by taking advantage of the native concurrency features of the stream API.

About the Author

Noah Kriegel works at ThoughtWorks, and serves as the Market Technical Principal for the SouthEast. He has been an IT consultant in various industries for the last 16 years and a software developer for the last 20.
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AJUG Meetup

Data Microservices with Spring Cloud Stream, Task, and Data Flow

Tuesday, July 19, 2016

Microservice based architectures are not just for distributed web applications! They are also a powerful approach for creating distributed stream and batch processing.

Spring Cloud Data Flow enables you to create and orchestrate standalone executable applications that communicate over messaging middleware such as Kafka and RabbitMQ that when run together, form a distributed stream processing application. It also allows users to create and orchestrate short lived microservices like batch jobs or boot applications that perform a task and then terminate when complete.

This allows you to scale, version and operationalize stream processing and task applications following microservice based patterns and practices on a variety of runtime platforms such as Cloud Foundry, Apache YARN and others.

Location:


Holiday Inn Atlanta-Perimeter/Dunwoody

4386 Chamblee Dunwoody Road,
Atlanta, GA (map)

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