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Comprehensive Overview of Workflow Engine and Persistence Frameworks

This document offers an in-depth examination of a Workflow Engine integrated with Java-based persistence frameworks such as Spring and Hibernate. It covers various components, including workflow and activity identification, context management, and the interaction with databases via PostgreSQL. Additionally, it discusses the frameworks' configuration files, such as struts-config.xml and application-context.xml, as well as the integration of JavaScript, JSP tag libraries, and DWR for dynamic web applications. Gain insights into developing robust web applications using these technologies.

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Comprehensive Overview of Workflow Engine and Persistence Frameworks

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  1. Workflow Engine Client Browsers Workflow info (workflow ID, activity ID, context ID) Workflow info (workflow ID, activity ID, context ID) Workflow Agent & POJOS Persistence Struts & DWR Agents, POJOs Classes: Servlet, Action, Agent Config: struts-config.xml Spring & Hibernate Persistence Framework Classes: Service, DAO, DAOImpl Config: applicaton-context.xml, context-[X].xml, [X].hbm JSP Taglibs, JavaScript, DWR PostGreSQL8.3 JSP Taglibs, JavaScript, DWR Java WebApp: Filters & Servlet Config Tomcat WebApp Server

  2. Workflow Editor Workflow Engine Workflow info (workflow ID, activity ID, context ID) Workflow Service & POJOS Persistence REST? Service Interfaces, POJOs Classes: ?? Config: ?? Spring & Hibernate Persistence Framework Classes: Service, DAO, DAOImpl Config: applicaton-context.xml, context-[X].xml, [X].hbm External Client Applications • User Management • Security • Page Navigation • Page Styles PostGreSQL8.3 PGIST GUI Framework • ExtJS4/Ajax? • (X)HTML5? • See also Google Gadgets/GWT HTML Java Service Providers Config Tomcat WebApp Server

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