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Starting a new sample for @converter and @convert 
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‎jpa/jpa-converter/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.javaee7.jpa</groupId>
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<artifactId>jpa-samples</artifactId>
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<version>1.0-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>jpa-converter</artifactId>
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<packaging>war</packaging>
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</project>

‎jpa/jpa-converter/src/main/java/org/javaee7/jpa/converter/Employee.java‎

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package org.javaee7.jpa.converter;
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import java.io.Serializable;
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import javax.persistence.Column;
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import javax.persistence.Convert;
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import javax.persistence.Entity;
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import javax.persistence.Id;
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import javax.persistence.NamedQueries;
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import javax.persistence.NamedQuery;
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import javax.persistence.Table;
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/**
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* @author Arun Gupta
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*/
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@Entity
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@Table(name="EMPLOYEE_SCHEMA_CONVERTER")
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@NamedQueries({
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@NamedQuery(name = "Employee.findAll", query = "SELECT e FROM Employee e")
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})
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public class Employee implements Serializable {
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private static final long serialVersionUID = 1L;
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@Id
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private int id;
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@Column(length=50)
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private String name;
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@Convert(converter = EmployeeDateConverter.class)
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private String dob;
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public Employee() { }
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public Employee(String name) {
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this.name = name;
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}
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public Employee(int id, String name, String dob) {
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this.id = id;
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this.name = name;
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this.dob = dob;
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getDob() {
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return dob;
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}
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public void setDob(String dob) {
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this.dob = dob;
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}
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@Override
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public String toString() {
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return name + "(" + dob + ")";
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}
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}

‎jpa/jpa-converter/src/main/java/org/javaee7/jpa/converter/EmployeeBean.java‎

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package org.javaee7.jpa.converter;
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import java.util.List;
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import javax.ejb.Stateless;
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import javax.persistence.EntityManager;
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import javax.persistence.PersistenceContext;
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/**
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* @author Arun Gupta
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*/
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@Stateless
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public class EmployeeBean {
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@PersistenceContext
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EntityManager em;
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public void persist(Employee e) {
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em.persist(e);
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}
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public List<Employee> get() {
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return em.createNamedQuery("Employee.findAll", Employee.class).getResultList();
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}
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}

‎jpa/jpa-converter/src/main/java/org/javaee7/jpa/converter/EmployeeDateConverter.java‎

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.javaee7.jpa.converter;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import javax.persistence.AttributeConverter;
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import javax.persistence.Converter;
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/**
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* @author Arun Gupta
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*/
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@Converter
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public class EmployeeDateConverter implements AttributeConverter<MyDate, String> {
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final SimpleDateFormat format = new SimpleDateFormat("M/dd/yy");
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@Override
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public String convertToDatabaseColumn(MyDate attribute) {
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return attribute.getDate().toString();
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}
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@Override
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public MyDate convertToEntityAttribute(String date) {
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Date d = null;
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try {
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d = format.parse(date);
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} catch (ParseException ex) {
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ex.printStackTrace();
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}
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return new MyDate(d);
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}
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}

‎jpa/jpa-converter/src/main/java/org/javaee7/jpa/converter/MyDate.java‎

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.javaee7.jpa.converter;
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import java.util.Date;
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/**
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* @author Arun Gupta
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*/
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public class MyDate {
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Date date;
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public MyDate() {
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}
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public MyDate(Date date) {
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this.date = date;
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}
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public Date getDate() {
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return date;
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}
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public void setDate(Date date) {
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this.date = date;
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}
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}

‎jpa/jpa-converter/src/main/java/org/javaee7/jpa/converter/TestServlet.java‎

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/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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*
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* Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
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*
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* The contents of this file are subject to the terms of either the GNU
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* General Public License Version 2 only ("GPL") or the Common Development
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* and Distribution License("CDDL") (collectively, the "License"). You
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* may not use this file except in compliance with the License. You can
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* obtain a copy of the License at
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* http://glassfish.java.net/public/CDDL+GPL_1_1.html
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* or packager/legal/LICENSE.txt. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* When distributing the software, include this License Header Notice in each
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* file and include the License file at packager/legal/LICENSE.txt.
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*
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* GPL Classpath Exception:
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* Oracle designates this particular file as subject to the "Classpath"
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* exception as provided by Oracle in the GPL Version 2 section of the License
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* file that accompanied this code.
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*
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* Modifications:
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* If applicable, add the following below the License Header, with the fields
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* enclosed by brackets [] replaced by your own identifying information:
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* "Portions Copyright [year] [name of copyright owner]"
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*
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* Contributor(s):
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* If you wish your version of this file to be governed by only the CDDL or
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* only the GPL Version 2, indicate your decision by adding "[Contributor]
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* elects to include this software in this distribution under the [CDDL or GPL
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* Version 2] license." If you don't indicate a single choice of license, a
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* recipient has the option to distribute your version of this file under
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* either the CDDL, the GPL Version 2 or to extend the choice of license to
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* its licensees as provided above. However, if you add GPL Version 2 code
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* and therefore, elected the GPL Version 2 license, then the option applies
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* only if the new code is made subject to such option by the copyright
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* holder.
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*/
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package org.javaee7.jpa.converter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.inject.Inject;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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/**
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* @author Arun Gupta
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*/
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@WebServlet(urlPatterns = {"/TestServlet"})
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public class TestServlet extends HttpServlet {
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@Inject
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EmployeeBean bean;
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/**
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* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
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* methods.
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*
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* @param request servlet request
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* @param response servlet response
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* @throws ServletException if a servlet-specific error occurs
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* @throws IOException if an I/O error occurs
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*/
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protected void processRequest(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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response.setContentType("text/html;charset=UTF-8");
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PrintWriter out = response.getWriter();
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out.println("<html>");
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out.println("<head>");
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out.println("<title>JPA 2.1 Converter</title>");
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out.println("</head>");
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out.println("<body>");
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out.println("<h1>JPA 2.1 Converter</h1>");
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out.println("Original list of employees");
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for (Employee e : bean.get()) {
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out.println(e + "<br>");
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}
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out.println("<h3>Adding a new employee</h3>");
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Employee emp = new Employee(8, "Lucy", "3/31/1980");
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bean.persist(emp);
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out.println("Updated list of employees");
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for (Employee e : bean.get()) {
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out.println(e + "<br>");
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}
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out.println("</body>");
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out.println("</html>");
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}
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// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
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/**
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* Handles the HTTP <code>GET</code> method.
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*
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* @param request servlet request
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* @param response servlet response
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* @throws ServletException if a servlet-specific error occurs
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* @throws IOException if an I/O error occurs
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*/
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@Override
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protected void doGet(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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processRequest(request, response);
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}
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/**
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* Handles the HTTP <code>POST</code> method.
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*
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* @param request servlet request
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* @param response servlet response
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* @throws ServletException if a servlet-specific error occurs
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* @throws IOException if an I/O error occurs
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*/
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@Override
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protected void doPost(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException {
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processRequest(request, response);
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}
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/**
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* Returns a short description of the servlet.
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*
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* @return a String containing servlet description
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*/
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@Override
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public String getServletInfo() {
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return "Short description";
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}// </editor-fold>
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}

‎jpa/jpa-converter/src/main/resources/META-INF/create.sql‎

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CREATE TABLE EMPLOYEE_SCHEMA_CONVERTER ("ID" INTEGER not null primary key, "NAME" VARCHAR(50) not null, "DOB" VARCHAR(10) not null)

‎jpa/jpa-converter/src/main/resources/META-INF/drop.sql‎

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DROP TABLE EMPLOYEE_SCHEMA_CONVERTER

‎jpa/jpa-converter/src/main/resources/META-INF/load.sql‎

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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (1, 'Leonard', '12/9/1980')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (2, 'Sheldon', '3/24/1973')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (3, 'Penny', '11/30/1985')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (4, 'Raj', '4/30/1975')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (5, 'Howard', '12/9/1980')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (6, 'Bernadette', '6/23/1980')
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INSERT INTO EMPLOYEE_SCHEMA_CONVERTER("ID", "NAME", "DOB") VALUES (7, 'Amy', '12/12/1975')

‎jpa/jpa-converter/src/main/resources/META-INF/persistence.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<persistence
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version="2.1"
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xmlns="http://xmlns.jcp.org/xml/ns/persistence"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
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<persistence-unit name="MyPU" transaction-type="JTA">
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<properties>
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<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
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<property name="javax.persistence.schema-generation.create-source" value="script"/>
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<property name="javax.persistence.schema-generation.drop-source" value="script"/>
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<property name="javax.persistence.schema-generation.create-script-source" value="META-INF/create.sql"/>
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<property name="javax.persistence.schema-generation.drop-script-source" value="META-INF/drop.sql"/>
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<property name="javax.persistence.sql-load-script-source" value="META-INF/load.sql"/>
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<property name="eclipselink.logging.level" value="FINE"/>
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</properties>
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</persistence-unit>
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</persistence>

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