Currently viewing the category: "Apache Avro"

Apache Avro: Java Generic Mapping

By On August 15, 2012 · Leave a Comment

Previous post covers Java code generation and specific mapping for Apache Avro. This post discusses using Apache Avro without code generation. This is used when the schema is not known before runtime. It’s called generic mapping in Java.

We’ll use the same schema as previous post, which is shown below.

{

[...]

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Apache Avro: Java Code Generation and Specific Mapping

By On August 15, 2012 · 2 Comments

Although code generation is not required for using Apache Avro, Java and C++ implementation can generate code to represent data for Avro schema. If we have the schema before read or write data, code generation can optimize the performance. In Java, this is called the specific mapping.

1. Code Generation

Suppose we have a [...]

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Apache Avro: Understand Schema

By On August 14, 2012 · Leave a Comment

Apache Avro is a serialization framework that designed with compact, fast, extensibility and interoperability in mind. It is first started to provide better serialization mechanism for Apache Hadoop, the open source distributed computing framework.

Avro provides mechanisms to store object data or sending it over the network for RPC. In both case, the data [...]

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