Saveorupdate not updating

24-Mar-2015 09:08 by 5 Comments

Saveorupdate not updating - giovinazzo dating

)] INFO Abstract Batch Impl:208 - HHH000010: On release of batch it still contained JDBC statements public class Save Entity Again In Same Session { public static void main(String[] args) { Session session One = Hibernate Session Factory()Session(); session One.begin Transaction(); //Create new Employee object Employee Entity emp = new Employee Entity(); Employee Id(1); First Name("Lokesh"); Last Name("Gupta"); //Save employee session One.save(emp); Last Name("temp"); //Save employee again second time session One.save(emp); session Transaction().commit(); Hibernate Util.shutdown(); } } Hibernate: insert into Employee (FIRST_NAME, LAST_NAME, ID) values (?

Strictly speaking, you should use save Or Update() with even non-persistent entities. public class Save Or Update Method Example { public static void main(String[] args) { Session session One = Hibernate Session Factory()Session(); session One.begin Transaction(); //Create new Employee object Employee Entity emp = new Employee Entity(); Employee Id(1); First Name("Lokesh"); Last Name("Gupta"); //Save employee session One.save(emp); session Transaction().commit(); Session session Two = Hibernate Session Factory()Session(); session Two.begin Transaction(); Last Name("temp"); //Save employee again second time session Or Update(emp); session Transaction().commit(); Hibernate Util.shutdown(); } } Output: Hibernate: insert into Employee (FIRST_NAME, LAST_NAME, ID) values (? Let’s see how it can be used along with entity persisted with save() method. LAST_NAME as LAST_NAM3_1_ from Employee employeeen_ where employeeen_. Ideally, what you would do is pass VO object to DAO layer, load the entity from the session and update the entity with by copying VO data onto it.We have learned that hibernate works only with persistent entities and persistent entities are classes which are attached to any hibernate session. ) Hibernate: insert into Employee (FIRST_NAME, LAST_NAME, ID) values (? Please not that creating an instance of a class, you mapped with a hibernate annotations, does not automatically persist the object to the database. get Last Name().equals(other Last Name()) : other Last Name() ! ) public class Save Entity Again In Another Session { public static void main(String[] args) { Session session One = Hibernate Session Factory()Session(); session One.begin Transaction(); //Create new Employee object Employee Entity emp = new Employee Entity(); Employee Id(1); First Name("Lokesh"); Last Name("Gupta"); //Save employee session One.save(emp); session Transaction().commit(); Session session Two = Hibernate Session Factory()Session(); session Two.begin Transaction(); Last Name("temp"); //Save employee again second time session Two.save(emp); session Transaction().commit(); Hibernate Util.shutdown(); } } Hibernate: insert into Employee (FIRST_NAME, LAST_NAME, ID) values (?

It must be save explicitly after attaching it to a valid hibernate session. = null) return false; return true; } @Override public int hash Code() { int result = get Employee Id() ! get Employee Id()Code() : 0; result = 31 * result + (get First Name() ! get First Name()Code() : 0); result = 31 * result + (get Last Name() ! get Last Name()Code() : 0); return result; } //Getters and Setters are hidden here } public class Simplest Save Entity Example { public static void main(String[] args) { Session session One = Hibernate Session Factory()Session(); session One.begin Transaction(); //Create new Employee object Employee Entity emp = new Employee Entity(); Employee Id(1); First Name("Lokesh"); Last Name("Gupta"); //Save employee session One.save(emp); session Transaction().commit(); Hibernate Util.shutdown(); } } Output: Hibernate: insert into Employee (FIRST_NAME, LAST_NAME, ID) values (? In hibernate, we generally use one of below two versions of save() method:‘ which is useful in case you have mapped multiple entities to a Java class. get First Name().equals(other First Name()) : other First Name() ! Here you can specify which entity you are saving using save() method. Let’s write down a simple example to see above theory in practical: Employee @Entity @Table(name = "Employee") public class Employee Entity implements Serializable { private static final long serial Version UID = -1798070786993154676L; @Id @Column(name = "ID", unique = true, nullable = false) private Integer employee Id; @Column(name = "FIRST_NAME", unique = false, nullable = false, length = 100) private String first Name; @Column(name = "LAST_NAME", unique = false, nullable = false, length = 100) private String last Name; @Override public boolean equals(Object o) { if (this == o) return true; if (! get Employee Id().equals(other Employee Id()) : other Employee Id() ! (o instanceof Employee Entity)) return false; Employee Entity other Employee = (Employee Entity) o; if (get Employee Id() ! ) WARN Sql Exception Helper:144 - SQL Error: -104, SQLState: 23000 ERROR Sql Exception Helper:146 - Violation of unique constraint SYS_PK_49: duplicate value(s) for column(s) ID in statement [insert into Employee (FIRST_NAME, LAST_NAME, ID) values (?

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