OsWorkflow code structure analysis

OsWorkflow is a lightweight workflow engine, the code structure is very simple, the specific:

1) COM.OPENSYMPHONY.WORKFLOW code interface

2) com.opensymphony.workflow.config config is of course configured, mainly parsing OSWORKFLOW.XML is the content below:

3) com.opensymphony.workflow.Loader Loader refers to loading, refers to the reading of the process definition, that is, the analysis

4) com.opensymphony.workflow.query is used to process expressions

5) com.opensymphony.workflow.spi SPI means that Server Provider Identification is to deal with under this package below. Know: EJB / Hibernate / JDBC / Memory ....

6) com.opensymphony.workflow.timer learning Java knows Timer's words, used to handle Schedule

7) com.opensymphony.workflow.util here's very large, including support for multiple features: bean shell / condition / caller / jms / mail / listener / status, etc. ...