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If you’re using GemFire in your software, there’s a good chance you’d like to build it using Maven. GemFire is hosted in a Maven repository but the details don’t seem to be documented, so this post is a bit of a “Missing Manual” entry.

It’s pretty easy, you need to set up the GemFire repository and add it as a dependency in your pom.xml.

Repository:

  <repositories>
    <repository>
      <id>gemstone</id>
      <url>http://dist.gemstone.com.s3.amazonaws.com/maven/release/</url>
    </repository>
  </repositories>

And dependency:

    <dependency>
        <groupId>com.gemstone.gemfire</groupId>
        <artifactId>gemfire</artifactId>
        <version>6.6</version>
    </dependency>

If you want to see all the versions of GemFire available you can on the repo root page.

I used this in the course of putting together a Continuous Query client for GemFire, which lets you run SQL-like queries against GemFire that returns matches in real-time as data enters GemFire. So you can run something like “SELECT * from /myregion WHERE totalsale > 100″ and any time an object is inserted into GemFire that has a totalsale value greater than 100 you’re immediately notified of it. It’s pretty interesting and the client is a nice way to interactively discover the system’s capabilities.

One other thing that might not be totally obvious is that GemFire is free for development use, there is a non-expiring license to use it for up to 3 connections (clients or members in the distributed system), so feel free to try it out, play around give feedback.