| Apache Jelly | |
| Developer: | Apache Software Foundation |
| Programming Language: | Java |
| License: | Apache License 2.0 |
Apache Jelly is a Java and XML based scripting and processing engine for turning XML into executable code.[1] Jelly is a component of Apache Commons.
Custom XML languages are commonly created to perform some kind of processing action. Jelly is intended to provide a simple XML based processing engine that can be extended to support various custom actions.[2]
CA Project and Portfolio Management, or CA PPM,[3] formerly known as CA Clarity PPM or just Clarity, is a product of Broadcom. CA PPM uses an extended version of the Jelly tag-language as an automation and integration scripting language in its Process Management engine. CA PPM implementation of Jelly is called GEL (Generic Execution Language) and encompasses a new custom tag library that allows easier connection to CA PPM via its XML Open Gateway (XOG). The following example shows how CA PPM implements the classical "Hello World" application.[4]
Jelly is also used by the ServiceNow platform, which uses Jelly tag-language for scripting the UI,[5] and by the Jenkins continuous integration server, which uses Jelly to allow plugins to extend its UI.[6]