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The cron command-line utility is a job scheduler on Unix-like operating systems.Users who set up and maintain software environments use cron to schedule jobs [1] (commands or shell scripts), also known as cron jobs, [2] [3] to run periodically at fixed times, dates, or intervals. [4]
MVEL – An open source EL used in many Java-based projects. SpEL – Spring Expression Language, an open source EL that is part of the Spring Framework. It's mainly used in Spring portfolio projects but because it's technology-agnostic it may be used in other projects. Ant-Flaka - Intended to simplify Ant build scripts with the help of EL.
Commons: reusable Java libraries and utilities too small to merit their own project BCEL: Bytecode Engineering Library; Daemon: Commons Daemon; Jelly: Jelly is a Java and XML based scripting engine. Jelly combines the best ideas from JSTL, Velocity, DVSL, Ant and Cocoon all together in a simple yet powerful scripting engine
Spring Framework 4.0 was released in December 2013. [10] Notable improvements in Spring 4.0 included support for Java SE (Standard Edition) 8, Groovy 2, [11] [12] some aspects of Java EE 7, and WebSocket. [13] Spring Framework 4.2.0 was released on 31 July 2015 and was immediately upgraded to version 4.2.1, which was released on 01 Sept 2015. [14]
VisualCron is a replacement for the Windows Task Scheduler and a similar cron job scheduler in Unix-like operating systems. [1] The software is split into client and server parts, with the former being invoked by the user on demand and the latter always running as a process in the background. [1]
Task Scheduler (formerly Scheduled Tasks) [1] is a job scheduler in Microsoft Windows that launches computer programs or scripts at pre-defined times or after specified time intervals. [ 2 ] [ 3 ] Microsoft introduced this component in the Microsoft Plus! for Windows 95 as System Agent. [ 4 ]
A process with two threads of execution, running on one processor Program vs. Process vs. Thread Scheduling, Preemption, Context Switching. In computer science, a thread of execution is the smallest sequence of programmed instructions that can be managed independently by a scheduler, which is typically a part of the operating system. [1]
Flink's Table API is a SQL-like expression language for relational stream and batch processing that can be embedded in Flink's Java and Scala DataSet and DataStream APIs. The Table API and SQL interface operate on a relational Table abstraction. Tables can be created from external data sources or from existing DataStreams and DataSets.