Getting the Provider Class for a Stateful Rule Session

ILOG JRules User Guide > Executing Rules > Tasks > Executing a Ruleset Using Rule Execution Server > Invoking a Ruleset Using a Stateful Rule Session > Getting the Provider Class for a Stateful Rule Session

Getting the Provider Class for a Stateful Rule Session

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The following sets of code show how to get the provider class from both a remote and a local client. A remote client is where the client does not run in the same JVM as the rule session. A local client is where the client runs in the same JVM as the rule session; for example, in a JSP page.

To get the provider for a remote client:

Use the following code:

Properties jndiProperties = new Properties();

jndiProperties.load(new FileInputStream("jndi.properties"));

IlrRuleSessionProvider rsProvider = new

   IlrRuleSessionProviderFactory.Builder(

   IlrRuleSessionProviderFactory.REMOTE_RULESESSION_PROVIDER,

   jndiProperties).build();

To get the provider for a local client:

Use the following code:

IlrRuleSessionProvider rsProvider = new

   IlrRuleSessionProviderFactory.Builder(

   IlrRuleSessionProviderFactory.MANAGED_RULESESSION_PROVIDER).build();

You can get the provider class for a local client that does not invoke an EJB, where the client does not run in the same JVM as the rule session and does not use the session as an EJB (for example, in a JSP page):

To get the provider for a local client that does not invoke an EJB:

Use the following code:

IlrRuleSessionProvider rsProvider = new

   IlrRuleSessionProviderFactory.Builder(

   IlrRuleSessionProviderFactory.SIMPLE_RULESESSION_PROVIDER).build();

You can also get the provider class in a J2SE environment (where the rule sessions are not used in an application server context).

To get the provider class in a J2SE environment:

Use the following code:

// It will print the XU logs on System.err

PrintWriter loggerPrinter = new PrintWriter(System.err);

IlrRuleSessionProvider rsProvider = new

   IlrRuleSessionProviderFactory.Builder(

   IlrRuleSessionProviderFactory.J2SE_RULESESSION_PROVIDER)

   .setLogger(loggerPrinter).build();

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