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Category Archives: EJB3

Example Interceptor in Seam, EJB3

It’s insanely easy to write an interceptor in EJB3. Here’s a tutorial/example code for an interceptor which collects statistics info around a method invocation. import java.util.Collection; import javax.interceptor.AroundInvoke; import javax.interceptor.InvocationContext; import org.apache.commons.lang.time.StopWatch; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class StatisticsInterceptor { private static final Log log = LogFactory .getLog(StatisticsInterceptor.class); @AroundInvoke @SuppressWarnings("unchecked") public Object intercept(InvocationContext ctx) throws [...]