Think in Graphs, Not Just Chains: JGraphlet for TaskPipelines

Thu, 02 Oct 2025 13:24:28 +0000

JGraphlet is a tiny, zero-dependency Java library for building task pipelines. It uses a graph model where you define tasks as nodes and connect them to create simple or complex workflows (like fan-in/fan-out). It supports both asynchronous (default) and synchronous tasks, has a simple API, allows data sharing via a PipelineContext, and offers optional caching to avoid re-computing results. **Its power comes not from a long list of features, but from a small set of core design principles that work together in harmony. At the heart of JGraphlet is simplicity, backed by a Graph. Add Tasks to a pipeline and connect them to create your graph. Each Task has an input and output. A TaskPipeline builds and executes a pipeline while managing the I/O for each Task. For example, a Map for Fan-in, a Record for your own data model, etc. A Task pipeline also has a way PipelineContext to share data between Tasks, and Tasks can also be cached, so the computation doesn’t need to take place again and again. You can choose how your Task pipeline flow should be, and you can decide whether it should be synchronous SyncTask or asynchronous. By default, all Tasks are asynchronous.

Shaaf Syed on foojay.io - Friends Of OpenJDK

Think in Graphs, Not Just Chains: JGraphlet for TaskPipelines