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Open Source Job Schedulers in Java

jcrontab

Jcrontab is a scheduler written in java. Jcrontab is designed to be extended and integrated with any project. Reads and stores the tasks to execute in a file, a database or an EJB and provides a web UI and a basic swing GUI.

Go To jcrontab

Quartz

Quartz is an open source job scheduling system that can be integrated with, or used along side virtually any J2EE or J2SE application. Quartz can be used to create simple or complex schedules for executing tens, hundreds, or even tens-of-thousands of jobs; jobs whose tasks are defined as standard Java components or EJBs.

Go To Quartz

Fulcrum Scheduler

This component provides a scheduler service. It is based on the TurbineScheduler provided with Turbine, but all older stuff has been removed. Currently ONLY the non persistent Scheduler is done. It loads scheduled jobs from the component config xml file.

Go To Fulcrum Scheduler

Essiembre J2EE Scheduler

J2EE Scheduler is a simple task scheduling mechanism for J2EE applications. This library can be considered a wrapper around the Timer and TimerTask classes found in the standard Java API. Configuration for tasks to be executed and their frequency is XML-based. A typical use for it is to periodically refresh in-memory data to ensure it stays up-to-date. It can also be used for automated maintenance tasks or anything else that suits your need.

Go To Essiembre J2EE Scheduler

Gos4j

Goal Oriented Scheduling for Java is a way of organising processing priorities based on goals. Each goal is processed based on its time to complete, and its progress towards that goal. Deadlines are used to act as the target completion time for a goal, and can be expressed in either relative or absolute terms.

Go To Gos4j

Oddjob

Oddjob is a free open source Java job scheduler and job tool kit. Oddjob's goal is to provide some order and visibility to all the batch files and cron jobs that tie an enterprise's critical business processes together. Additionally Oddjob will often offer a more robust alternative to an existing process from it's toolkit.

Go To Oddjob

Job Scheduler

The Job Scheduler is a batch program operating as a demon, and can be controlled using a graphical user interface. The Job Scheduler uses an XML configuration for the scheduled programs, scripts and for the timing and frequency of task processing. An API is available for Java, Javascript, Perl, VBScript that hands control of events and logging to your jobs. The Job Scheduler is used for Job Automation - for example, automatically running database procedures with the free database systems MySQL, PostgreSQL, with SQL Server or with Oracle. The Job Scheduler is available for the following operating systems: Windows 2000 and Windows XP, Linux, Solaris and HP-UX.

Go To Job Scheduler

JDRing

JDRing is a lightweight Java scheduling library that is simple and small, but still supports ringing alarms at specified intervals, as one-time events, or on complex schedules with full cron-like control.

Go To JDRing

jBatchEngine

jBatchEngine is a batch job spooler written in Java. In constrast to time driven schedulers like Cron, jBatchEngine is event driven. It uses a database table for job management and runs as a Windows Service or a Unix Daemon. jBatchEngine can run any programm. There is also a facility for job monitoring.

Go To jBatchEngine

MyBatchFramework

MyBatchFramework is an open-source lightweight framework designed to create easily robust and manageable batch programs into the Java language. Its main features: multithreaded execution, scheduling, JMX management, batch execution report, history.

Go To MyBatchFramework

Super

Super with SuperScheduler and SuperWatchdog is a Java job scheduler with rich GUI for all applications. It is platform neutral. Especially good to be a job scheduler for Linux and Solaris. It provides a super set of functionalities of the Scheduler of Microsoft Windows. It provides event-triggered scheduling. It can schedule tasks in a distributed environment. A task will be executed once and only once among all machines in the network. All tasks are holiday adjustable. Even every job is a STANDBY job, the history will be a good trace for important tasks. It supports Internationalization. A Chinese properties file is provided.

Go To Super

cron4j

cron4j is a scheduler for the Java 2 platform which is very similar to the UNIX cron daemon. With cron4j you can launch, from within your Java applications, any task you need at the right time, according to some simple rules.

Go To cron4j






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