spring+jbpm4中扩展使用自己系统中的用户角色

扩展流程中的角色与用户为自己系统中的用户及角色。
AppUser实体需要扩展org.jbpm.api.identity.User接口
AppRole实体需要扩展org.jbpm.api.identity.Group接口

实现自己系统中的IdentityService接口

如写一个类（UserSession）实现org.jbpm.pvm.internal.identity.spi.IdentitySession这个接口。
Java代码
public class UserSession implements IdentitySession{  
        //仅需要扩展以下方法即可   
 
         //---------------------------------methods above are not need overwrite--------------------------------------------  
 
    @Override 
 
    public Group findGroupById(String groupId) {  
 
       // TODO Auto-generated method stub  
 
       return null;  
 
    }  
 
    @Override 
    public List<Group> findGroupsByUser(String arg0) {  
      // TODO Auto-generated method stub  
 
       return null;  
    }  

    @Override 
    public List<Group> findGroupsByUserAndGroupType(String arg0, String arg1) {  
 
       // TODO Auto-generated method stub   
       return null;  
    }    
 
    @Override  
    public User findUserById(String arg0) {   
       // TODO Auto-generated method stub   
       return null;  
    }  
 
   
 
    @Override 
    public List<User> findUsers() {  
       // TODO Auto-generated method stub  
 
      return null;  
    }  
  
    @Override  
    public List<User> findUsersByGroup(String arg0) {   
      // TODO Auto-generated method stub    
       return null;   
    }  
 
    @Override 
    public List<User> findUsersById(String... arg0) {  
       // TODO Auto-generated method stub  
       return null;  
 
   }  
 
} 

public class UserSession implements IdentitySession{

        //仅需要扩展以下方法即可

         //---------------------------------methods above are not need overwrite--------------------------------------------

    @Override
    public Group findGroupById(String groupId) {

       // TODO Auto-generated method stub
       return null;

    }

    @Override
    public List<Group> findGroupsByUser(String arg0) {

       // TODO Auto-generated method stub
       return null;
    }

    @Override
    public List<Group> findGroupsByUserAndGroupType(String arg0, String arg1) {

       // TODO Auto-generated method stub
       return null;
    }

    @Override
    public User findUserById(String arg0) {
       // TODO Auto-generated method stub
       return null;
    }

    @Override
    public List<User> findUsers() {
       // TODO Auto-generated method stub
       return null;
    }

    @Override
    public List<User> findUsersByGroup(String arg0) {
       // TODO Auto-generated method stub
       return null;
    }

    @Override
    public List<User> findUsersById(String... arg0) {
       // TODO Auto-generated method stub
       return null;
   }

}
 

加入用户及组的系统扩展实现配置。
Jbpm.identity.cfg.xml

Java代码  
 
<?xml version="1.0" encoding="UTF-8"?>      
<jbpm-configuration>   
<transaction-context>   
     <object class="com.htsoft.core.jbpm.UserSession"/>    
  </transaction-context>   
</jbpm-configuration> 

<?xml version="1.0" encoding="UTF-8"?>

<jbpm-configuration>
  <transaction-context>
     <object class="com.htsoft.core.jbpm.UserSession"/>
  </transaction-context>
</jbpm-configuration> 


配置Jbpm.xml的Spring配置文件

Java代码
<?xml version="1.0" encoding="UTF-8"?>   
<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
    xsi:schemaLocation=" http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"   
    default-lazy-init="true">   
    <bean id="jbpmConfiguration" class="org.jbpm.pvm.internal.cfg.SpringConfiguration">   
        <constructor-arg value="jbpm.cfg.xml" />   
   </bean>      
 
    <bean id="processEngine" factory-bean="jbpmConfiguration" factory-method="buildProcessEngine" />  
 
    <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />  
 
    <bean id="executionService" factory-bean="processEngine" factory-method="getExecutionService" />  
 
    <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService"/>  
 
    <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService"/>  
 
    <bean id="identityService" factory-bean="processEngine" factory-method="getIdentityService"/>    
 
    <!--   
    <bean id="jbpmTemplate" class="com.bmsoft.jbpm.spring.JbpmTemplate">  
 
       <property name="processEngine" ref="processEngine"/>  
 
       <property name="proDefinitionService" ref="proDefinitionService"/>   
       <property name="dataSource" ref="dataSource"/>  
    </bean>   
     -->  
</beans>