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Manual
11

Database Schema Evolution

Modifications to entity classes that do not change their persistent field definitions (their schema) are transparent to ObjectDB. This includes adding, removing and modifying constructors, methods and non persistent fields. However, additions, deletions and modifications to the persistent fields
Tutorial
11

Step 2: Define a JPA Entity Class

; // Constructors: public Guest() { } public Guest(String name) { this.name = name
Tutorial
11

Step 2: Define a JPA Entity Class

Date signingDate; // Constructors: public Guest() { } public Guest(String name
Tutorial
11

Step 2: Entity Class and Persistence Unit

Long id; private String name; private Date signingDate; // Constructors
Tutorial
11

Step 2: Entity Class and Persistence Unit

; private String name; private Date signingDate; // Constructors: public Guest
Tutorial
11

Step 2: Entity Class and Persistence Unit

Long id; private String name; private Date signingDate; // Constructors: public
Tutorial
11

Step 2: Entity Class and Persistence Unit

; private Date signingDate; // Constructors: public Guest() { } public Guest
Manual
11

Defining a JPA Entity Class

{ // Persistent Fields: private int x; private int y; // Constructor: Point (int x, int
Result
11

Posting to ObjectDB Website - Important Instructions

should have a no-arg public or protected constructor, An entity class must be a top level class, The project does not
JDO Doc
11

javax.jdo.spi.JDOImplHelper

"). This method is called by the constructors of JDO Reference Implementation classes. Parameters: smClass ... an argument to the constructor. Construct an instance of the parameter class, using the keyString as an argument to the constructor. If the class has a StringConstructor instance registered, use