Shulou(Shulou.com)06/02 Report--

In this issue, the editor will bring you about the meaning of 28 data tables in Activiti. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

Activiti provides us with the following 28 data tables, which play the most basic but important work for our workflow implementation. The following through the classification of data tables, the meaning of several aspects to introduce.

1. Classification of data tables

Activiti's 28 data tables constitute a strict workflow storage mechanism, which can be divided into the following six categories.

ACT_GE: general, which is used to store some general data.

ACT_RE: repository, storage table, used to hold workflow definition, deployment, and other information.

ACT_ID: identity, identity table, used to hold data about user, user group, and the binding relationship between the two.

ACT_RU: runtime, the runtime table, which is used to hold data when the process is running, such as workflow instances, permissions, parameters, and so on.

ACT_HI: history, which is used to hold the historical data of the process.

two。 The meaning of the data sheet

ACT_GE_BYTEARRAY: used to save process engine-related resources, such as bpmn, png and other files.

The REV_ field is used to save the operation version.

The BYTE_ field is used to hold data that can be sequenced, such as the contents of a file.

ACT_GE_PROPERTY: property sheet, which is used to hold some basic properties in KMTV format.

Act_re_deployment: deployment table. "deployment" can be seen as an operator, and multiple resource files can be deployed at a time.

Act_re_procdef: process definition, which is used to store the process we define.

Act_id_info: it is used to store some information of the user. The type of information stored is distinguished by the TYPE_ field. TYPE_ has three values: accout, userinfo and null.

Act_ru_identitylink: the relationship table between tasks and users

Act_ru_task: used to save tasks in the process

Act_ru_variable: saving parameters in operation

Act_ru_event_subscr: event description table, including description information for boundary events and other events

Act_hi_actinst: the process details and processes of each process are recorded here.

Act_hi_attachment: attachment table

Act_hi_comment: comment form

The above is the meaning of the 28 data tables in Activiti shared by the editor. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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