Red Hat Summit Red Hat SummitSupportConsoleDevelopersStart a trialContact

4.2. Session

Next, you must create a session to interact with the Engine. The following code shows you how to do this, and how to start a process (via its id.): 
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ProcessInstance processInstance = ksession.startProcess("com.sample.MyProcess");
Copy to Clipboard Toggle word wrap
The ProcessRuntime interface defines all of the session methods: 
ProcessInstance startProcess(String processId);
ProcessInstance startProcess(String processId, Map<String, Object> parameters);
void signalEvent(String type, Object event);
void signalEvent(String type, Object event, long processInstanceId);
Collection<ProcessInstance> getProcessInstances();
ProcessInstance getProcessInstance(long id);
void abortProcessInstance(long id);
WorkItemManager getWorkItemManager();
Copy to Clipboard Toggle word wrap
Back to top
Red Hat logoGithubredditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust. Explore our recent updates.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

Theme

© 2026 Red Hat