Java tutorials

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SampleApp: Your first synchronous IBM Spectrum Symphony Java client
This tutorial guides you through the process of building, packaging, deploying, and running the sample client and service. It then walks you through the sample client application code. You will learn the minimum amount of code that you need to create a synchronous client.
SampleApp: Developing an asynchronous IBM Spectrum Symphony Java client
In this tutorial, you will learn how to convert a synchronous client into an asynchronous one.
SampleApp: Your first IBM Spectrum Symphony Java service
This tutorial walks you through the sample service code, then guides you through the process of building and running a service. You learn the minimum amount of code that you need to create a service.
SharingData: Developing a Java client and service to share data among tasks
This tutorial walks you through how to develop a client application and service to share data among all tasks in a session. The data is shared by all invocations of tasks within the same session. You learn how to use different data objects for input, output, and common data.
Customizing a MapReduce service for lifecycle events
This tutorial walks you through a sample service code, then guides you through the process of customizing the default MapReduce service.
Demonstrating memory shared between tasks in the MapReduce framework
This tutorial guides you through the process of using the shared memory sample to demonstrate how memory is shared between tasks in the MapReduce framework, so as to significantly reduce the service footprint.
Using mixed data sources
This tutorial guides you through the process of using different data sources and destinations for input and output within the MapReduce framework in IBM Spectrum Symphony.
Using hash-based grouping for data aggregation
This tutorial guides you through the process of using hash-based grouping to implement aggregation in the reducer class code.

Parent topic: Developer tutorials for IBM Spectrum Symphony Developer Edition