Activiti directory (I) highlights

Catalog

Activiti( One ) Getting started

Activiti（ Two ） Integrate

Activiti（ 3、 ... and ） Deploy 、 Publishing process

Activiti Catalog （ Four ） Inquiry agent / Have done 、 to examine

Activiti Fragmented pits

Introduce ：

Activiti What is it?

Activiti It is aimed at enterprise users 、 Developer 、 System administrator's lightweight workflow business management platform , Its core is the use of Java Rapid development 、 The stability of the BPMN2.0 Process engine .Activiti Is in ApacheV2 Issued under license , It can run on any type of Java In the program , Such as ： The server 、 colony 、 Cloud services, etc .Activiti Can be perfect with Spring Integrate , It is based on the simple design idea .

Activiti Characteristics

1. Data persistence ：Activiti The design idea is simple and fast . Generally, the bottleneck of the system is mainly reflected in the interaction between applications and databases , In this case Activiti Choose to use Mybatis, And through optimal SQL Statement execution Command.
2. engine Service Interface ：Activiti The engine offers seven big Service Interface , It's all through ProcessEngine obtain , At the same time, it supports chain API Programming style .

Service Interface	effect
RepositoryService	Process warehouse Service, Used to manage process warehouse , Such as ： Deploy 、 Delete 、 Read process resources
IdentifyService	identity Service, Users can be managed and queried 、 The relationship between groups
TaskService	Runtime Service, Handle all running tasks and process instances
RepositoryService	Mission Service, Used to manage query tasks , If signed 、 Deal with 、 Assign, etc
FormService	Forms Service, For reading and tasks 、 Process related form data
HistoryService	history Service, All historical data can be queried
ManagementService	Engine management Service, Not related to specific business , Available query engine configurations 、 database 、 Homework, etc

1. Process designer ：Activiti The team designed it based on BPMN2.0 Standard designer -Eclipse Designer, In addition to that Signavio Company as Activiti Customized based on Web Of Activiti Modeler Process designer .
2. Native support Spring： Current enterprise development , Basically, it will be based on Spring Develop your own system , because Activiti Native support Spring, So it's easy to Spring Integrate .
3. Separating runtime from historical data ： Separation of operation and historical data , It can speed up the performance of runtime data , When historical data is needed , We are going to inquire .

Activiti Application

1. In terms of system integration ： And ESB Integrate / Integration with rule engine / Embed the existing system platform ( It is also the demand of this project )
2. Apply in other products ：Alfresco The company's ECM Products are applied in enterprises , It mainly involves document management / Collaboration / Records Management / Knowledge base management / Web Content management, etc .

Activiti Frames and components

Activiti The most important thing is the engine , In addition, there are external tools and components .

Modeling	Runtion	Management
Activiti Modeler		Activiti Exproler
Activiti Designer	Activiti Engine	Activiti REST
Activiti Kickstart

The following is a brief description of the above components ：

1. Activiti Engine： The core module , Provide targeted BPMN2.0 Analysis of norms / perform / establish / management ( Mission - Process instance ) / Query historical records and generate corresponding reports .
2. Activiti Modeler： Model designer , Not Activiti Companies to develop . Used to transform requirements into standard process definitions .
3. Activiti Designer： Designer , And Activiti Modeler The function is similar to .
4. Activiti Exproler： Used to manage the warehouse / user / Group , Start process / Task handling, etc .
5. Activiti REST： Provide REST Style of service , Allow clients to JSON The way and engine of REST API Interaction , The protocol has cross platform / Cross language .