Glassfish example source code file (TestEJB.java)

This example Glassfish source code file (TestEJB.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

arraylist, collection, ejb, employee, employee, list, persistencecontext, project, project, query, select, servlet, string, string, testejb, testejb, util, web

The Glassfish TestEJB.java source code

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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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 * language governing permissions and limitations under the License.
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 */

package myapp;

import javax.ejb.Stateless;
import javax.persistence.*;
import java.util.*;

@Stateless
public class TestEJB {
    
    @PersistenceContext EntityManager em;

    public TestEJB() {
    }

    // initData
    public boolean test1() {
        boolean pass= false;

	Employee e1 = new Employee(1, "emp1", 1000);
	Employee e2 = new Employee(2, "emp2", 2000);
	Employee e3 = new Employee(3, "emp3", 3000);
	Employee e4 = new Employee(4, "emp4", 4000);
	Project p1 = new Project(1, "proj1");
	Collection<Employee> employees = new ArrayList();
	employees.add(e1);
	employees.add(e2);
	employees.add(e3);
	employees.add(e4);
	p1.setEmployees(employees);
     
	// Persist Cascade without long name
	try {
	  System.out.println("1. Persisting project....");
	  em.persist(p1);
          em.flush();
	  pass = true;
        } catch(Throwable e){
	  e.printStackTrace();
        }
        return pass;
    }

    // persist Employee with a long name
    public boolean test2() {
        boolean pass= false;
	Employee e5 = new Employee(5, "myLongName5", 5000);
	try {
	  System.out.println("2. Persisting employee with long name....");
	  em.persist(e5);
          em.flush();
	  System.out.println("Error: not get BV ex for persist");
	} catch(javax.validation.ConstraintViolationException ex){
	  System.out.println("Expected BV Ex");
	  pass= true;
	  String msg = ex.getMessage();
	  System.out.println("msg="+msg);
	} catch(Throwable e){
	  System.out.println("Unexpected Ex");
	  e.printStackTrace();
        }
        return pass;
    }


    // update Employee with a long name
    public boolean test3() {
        boolean pass= false;
	try {
	  System.out.println("3. Updating employee with long name....");
	  Employee e = em.find(Employee.class, 3);
	  e.setName("myLongName3");
	  em.flush();
	  System.out.println("Error: not get BV ex for update");
	} catch (javax.validation.ConstraintViolationException ex) {
	  System.out.println("Expected BV Ex");
	  pass= true;
	  String msg = ex.getMessage();
	  System.out.println("msg="+msg);
	} catch(Throwable e){
	  System.out.println("Unexpected Ex");
	  e.printStackTrace();
        }
        return pass;
    }

    // remove Employee with a long name
    public boolean test4() {
        boolean pass= false;
        try {
	  System.out.println("4. Removing employee with long name....");
	  Employee e = em.find(Employee.class, 1);
	  e.setName("myLongName1");
	  em.remove(e);
	  em.flush();
	  System.out.println("OK: not get BV ex for remove");
	  pass= true;
	} catch (javax.validation.ConstraintViolationException ex) {
	  System.out.println("BV Ex");
	  String msg = ex.getMessage();
	  System.out.println("msg="+msg);
	} catch(Throwable e){
	  System.out.println("Unexpected Ex");
	  e.printStackTrace();
        }
        return pass;
    }

    // verify previous operations
    public boolean test5() {
        boolean pass= false;
        boolean bvsize = true;
	try {
	  System.out.println("5. Verifying employee ....");
	  Employee emp = null;
	  Query q= em.createQuery("SELECT e FROM Employee e");
	  List result = q.getResultList();
	  int size = result.size();
	  for (int i = 0 ; i < size ; i++) {
	    emp = (Employee) result.get(i);          
	    String name = emp.getName();
	    System.out.println("i=" + i + ", name=" + name);
	    if (name.length() > 5) {
	      bvsize = false;
	    }
	  }
	  System.out.println("size =" +size+", bvsize="+bvsize);
	  if (size == 3 && bvsize){
	    pass = true;
	  }
	} catch(Throwable e){
	  System.out.println("Unexpected Ex");
	  e.printStackTrace();
        }
        return pass;
    }


}