Get Ejb Info From InvocationContext
File: Employee.java
import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.PostRemove;
@Entity
public class Employee implements java.io.Serializable {
private int id;
private String firstName;
private String lastName;
@Id
@GeneratedValue
public int getId () {
return id;
}
@PostRemove
public void postRemove ()
{
System.out.println ( "@PostRemove" ) ;
}
public void setId ( int id ) {
this .id = id;
}
public String getFirstName () {
return firstName;
}
public void setFirstName ( String first ) {
this .firstName = first;
}
public String getLastName () {
return lastName;
}
public void setLastName ( String last ) {
this .lastName = last;
}
}
File: EmployeeBean.java
import javax.ejb.Stateful;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
@Stateful
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
public EmployeeBean () {
}
public void doAction () {
System.out.println ( "Processing..." ) ;
}
@AroundInvoke
public Object TimerLog ( InvocationContext ctx ) throws Exception {
String beanClassName = ctx.getClass () .getName () ;
String businessMethodName = ctx.getMethod () .getName () ;
String target = beanClassName + "." + businessMethodName;
long startTime = System.currentTimeMillis () ;
System.out.println ( "Invoking " + target ) ;
try {
return ctx.proceed () ;
} finally {
System.out.println ( "Exiting " + target ) ;
long totalTime = System.currentTimeMillis () - startTime;
System.out.println ( "Business method " + businessMethodName + "in " + beanClassName + "takes "
+ totalTime + "ms to execute" ) ;
}
}
}
File: EmployeeServiceLocal.java
import javax.ejb.Local;
import javax.ejb.Remote;
@Local
public interface EmployeeServiceLocal {
public void doAction () ;
}
File: EmployeeServiceRemote.java
import javax.ejb.Remote;
@Remote
public interface EmployeeServiceRemote {
public void doAction () ;
}
File: jndi.properties
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost: 1099
File: Main.java
import javax.ejb.EJB;
import javax.naming.InitialContext;
public class Main {
public static void main ( String [] a ) throws Exception {
EmployeeServiceRemote service = null ;
// Context compEnv = (Context) new InitialContext().lookup("java:comp/env");
// service = (HelloService)new InitialContext().lookup("java:comp/env/ejb/HelloService");
service = ( EmployeeServiceRemote ) new InitialContext () .lookup ( "EmployeeBean/remote" ) ;
service.doAction () ;
}
}
EJB-GetEjbInfoFromInvocationContext.zip( 4,489 k)
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