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Developing a Reusable File: Cleanup Schedulable Job

In my last post, I delivered on a reusable, file archival schedulable job. I promised to next look at doing something similar for file cleanup. File cleanup needs are driven by similar, if not identical, factors as those for file archival. Reiterating those, they are – limits of physical space, business or compliance requirements for … Read more

Developing a Reusable File: Archival Schedulable Job

DevOps and full-stack have been popular topics in our industry for a number of years now. Unfortunately, they don’t always mean the same thing to every organization or even individuals within an organization. Rather than debate what they are or what they should be, this post will work through a solution created by the development … Read more

Comparing Quartz, cron4j and Obsidian Scheduler

We’ve all worked on projects that required us to do very basic tasks at periodic intervals. Perhaps we chose a basic ScheduledThreadPoolExecutor. If we’re already using Spring, maybe we tried their TaskExecutor/TaskScheduler support. But once we encounter any number of situations such as an increased quantity of tasks, new interdependencies between tasks, unexpected problems in … Read more

Java Enterprise Software Versus What it Should Be

A lot of developers end up in the Java “enterprise” world at some point in their careers. I know the term alone conjures up all kinds of reactions, and rightly so. Often environments where lots of interesting technical challenges exist end up being those that nobody wants to work on because they are brittle, difficult … Read more

Why You Still Shouldn’t Use Quartz Scheduler

When I first wrote on this topic, I lamented that the de facto standard for scheduling jobs in Java applications is use of the Quartz scheduling library. Why? At the time, I explained: Enabling your application to schedule jobs with Quartz takes significant code and/or configuration. Changes in job schedule or other parameters require code/configuration … Read more

Integrating Spring and Obsidian Scheduler

The use of Spring framework has woven its way into a large percentage of Java projects of all sorts. It has grown well beyond a dependency injection framework to a large interconnected technology stack providing “plumbing” in a large number of areas. Since it’s so often a part of our lives, we’ll discuss Obsidian’s support … Read more

Reusable Jobs with Obsidian Chaining

A lot of Obsidian users write custom jobs in Java and leverage their existing codebase to performs things like file archive or file transfer right inside the job. While it’s great to reuse that existing code you have, sometimes users end up implementing the same logic in multiple jobs, which isn’t ideal, since it means … Read more