Activiti Delete a process definition

 Packagecom.mycom.processDefinition;ImportJava.io.InputStream;Importjava.util.List;ImportJava.util.zip.ZipInputStream;ImportOrg.activiti.engine.ProcessEngine;ImportOrg.activiti.engine.ProcessEngines;Importorg.activiti.engine.repository.Deployment;Importorg.activiti.engine.repository.ProcessDefinition;Importorg.junit.Test; Public classprocessdefinitiontest {processengine processengine=Processengines.getdefaultprocessengine (); /** Deployment process definition (from Classpath)*/@Test Public voidDeploymentprocessdefinition_classpath () {Deployment Deployment= Processengine.getrepositoryservice ()//Service related to process definition and deployment objects. Createdeployment ()//Create a Deployment object. Name ("Process definition")//Add a deployment name. Addclasspathresource ("DIAGRAMS/HELLOWORLD.BPMN")//Load from Classpath resources, only one file can be loaded at a time. Addclasspathresource ("Diagrams/helloworld.png"). deploy ();//Complete DeploymentSYSTEM.OUT.PRINTLN ("Deployment ID:" +Deployment.getid ()); System.out.println ("Deployment Name:" +deployment.getname ()); }        /** Deployment process definition (from Zip)*/@Test Public voidDeploymentprocessdefinition_zip () {InputStream in= This. GetClass (). getClassLoader (). getResourceAsStream ("Diagrams/helloworld.zip"); Zipinputstream Zipinputstream=NewZipinputstream (in); Deployment Deployment= Processengine.getrepositoryservice ()//Service related to process definition and deployment objects. Createdeployment ()//Create a Deployment object. Name ("Process definition")//Add a deployment name. Addzipinputstream (Zipinputstream)//complete the deployment of the zip file. deploy ();//Complete DeploymentSYSTEM.OUT.PRINTLN ("Deployment ID:" +Deployment.getid ()); System.out.println ("Deployment Name:" +deployment.getname ()); }        /** Query Process definition*/@Test Public voidfindprocessdefinition () {List<ProcessDefinition> list = Processengine.getrepositoryservice ()//Service related to process definition and deployment objects. Createprocessdefinitionquery ()//Create a Process definition query                        /*specify query criteria, where condition*/                        //. Deploymentid (Deploymentid)//querying using the Deployment Object ID//. Processdefinitionid (Processdefinitionid)//query using process definition ID//. Processdefinitionkey (Processdefinitionkey)//use process-defined key queries//. Processdefinitionnamelike (processdefinitionnamelike)//fuzzy Query using the name of the process definition                                                /*Sort*/. Orderbyprocessdefinitionversion (). ASC ()//Sorted by version in ascending order//. Orderbyprocessdefinitionname (). DESC ()//Sort by process-defined name in descending order. List ();//returns a collection list that encapsulates the process definition//. Singleresult ();//returns a unique result set//. Count ();//returns the number of result sets//. Listpage (Firstresult, MaxResults)//Paging Query                if(List! =NULL&& list.size () >0){             for(ProcessDefinition processdefinition:list) {System.out.println ("Process definition ID:" +processdefinition.getid ());//key+ version of the process definition + random build numberSYSTEM.OUT.PRINTLN ("Process definition name:" +processdefinition.getname ());//the value of the name attribute in the corresponding HELLOWORLD.BPMN fileSystem.out.println ("Key for process definition:" +processdefinition.getkey ());//the value of the id attribute in the corresponding HELLOWORLD.BPMN fileSystem.out.println ("version of the process definition:" +processdefinition.getversion ());//when the key value of the process definition is the same, the version is upgraded by default starting from 1System.out.println ("Resource Name BPMN file:" +processdefinition.getresourcename ()); System.out.println ("Resource name PNG file:" +processdefinition.getdiagramresourcename ()); System.out.println ("Deployment Object ID:" +Processdefinition.getdeploymentid ()); System.out.println ("################################"); }        }            }        /** Delete process definition*/@Test Public voiddeleteprocessdefinition () {//use the deployment ID to complete the removalString Deploymentid = "1"; /** Delete without cascade * Can only delete processes that do not start, and throws an exception if the process starts*///Processengine.getrepositoryservice ()//Service related to process definition and deployment objects//. Deletedeployment (Deploymentid);        /** The deletion of the energy level Union * can delete the initiating process, will delete all the information related to the current rule, the information being executed, also includes the historical information*/Processengine.getrepositoryservice ()//Service related to process definition and deployment objects. Deletedeployment (Deploymentid,true); System.out.println ("Delete Succeeded"); }        }

1) Because the process definition is deleted and the deployment of the process definition belongs to the warehouse service, you should get Repositoryservice first

2) If the process definition does not have a running process, it can be deleted with normal. If there is information associated with it, delete it with a cascade. The use of cascading deletions is more common in project development, and removal operations are generally only available to super administrators.

Activiti Delete a process definition