Download E-books Pro Hibernate and MongoDB (The Expert's Voice) PDF

By Anghel Leonard

Hibernate and MongoDB are a strong mix of open resource patience and NoSQL applied sciences for present day Java-based firm and cloud program developers. Hibernate is the prime open resource Java-based endurance, item relational administration engine, lately repositioned as an item grid administration engine.  MongoDB is a growing to be, well known open resource NoSQL framework, specially well known between cloud program and massive facts developers.  With those , company and cloud builders have a "complete out of the field" solution. 

Pro Hibernate and MongoDB indicates you ways to take advantage of and combine Hibernate and MongoDB.  extra in particular, this e-book courses you thru the bootstrap; development transactions; dealing with queries and question entities; and mappings.  Then, this publication explores the foundations and methods for taking those software rules to the cloud, utilizing the OpenShift Platform as a provider (PaaS) and more. 

during this publication, you get case reviews:

  • An firm program utilizing Hibernate and MongoDB.  then,
  • A cloud software (OpenShip) migrated from the company software case learn

After studying or utilizing this e-book, you return away with the adventure from case reviews that provide you with attainable frameworks or templates for you to practice in your personal particular program or cloud program development context.

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IdClass; ... @Entity @IdClass(hogm. mongodb. entity. RankingAndPrizeC. category) public classification avid gamers implements Serializable {   @Id deepest int rating; @Id inner most String prize; inner most String identify; 136 Chapter five ■ hibernate OGM and Jpa 2. zero annOtatiOns deepest String surname; inner most int age; //constructors, getters and setters ... Now persist a number of circumstances of the gamers entity utilizing Hibernate OGM. MongoDB will exhibit the the avid gamers assortment proven in determine 5-12. determine 5-12. outline a composite key utilizing @IdClass the entire program that demonstrates the @IdClass annotation comes in the Apress repository and is termed HOGM_MONGODB_Id. It comes as a NetBeans venture and used to be validated less than GlassFish three AS. @Table Annotation Mapped by way of the javax. patience. desk annotation. professional documentation: http://docs. oracle. com/javaee/6/api/javax/persistence/Table. html. short review In a relational database, every one entity is represented as a desk (known as a first-rate desk) whose identify is, via default, similar to the entity (an unqualified entity type name). so one can set one other identify for a desk, you should use the @Table annotation and the identify aspect. you may as well specify a catalog and a schema through including the catalog and schema parts. MongoDB affiliates the proposal of desk with assortment. The default assortment identify is equal to the mapped entity. OGM help Hibernate OGM helps @Table annotation. it is going to offer the identify aspect price because the identify of the corresponding assortment. furthermore, if you happen to specify the catalog point to boot, Hibernate OGM will upload the catalog worth as a prefix to the schema identify (or assortment identify, if the schema is lacking) and may separate it from the schema identify 137 Chapter five ■ Hibernate OGM and JPA 2. zero Annotations (or assortment identify) with a dot. And in case you specify the schema point, Hibernate OGM will upload the schema worth among the catalog identify (if that exists) and the gathering identify separated by way of dots. As you'll discover, while catalog, schema, and assortment names are current, Hibernate OGM concatenates a last identify in keeping with the relational version hierarchy: catalogs comprise schemas, and schemas comprise tables. instance checking out @Table annotation is an easy job, due to the fact all you must do is upload this annotation on the type point and notice what occurs. Here’s the avid gamers entity annotated with @Table:   import javax. patience. desk; ... @Entity @Table(catalog="ATP", schema="public", name="atp_players") public classification avid gamers implements Serializable {   @Id @GeneratedValue(strategy=GenerationType. car) deepest int identification; inner most String identify; inner most String surname; inner most int age;   //constructors, getters and setters ... }   Figure 5-13 exhibits the impact of the @Table annotation on MongoDB: determine 5-13. Mapping @Table annotation in MongoDB the entire program that demonstrates the @Table annotation comes in the Apress repository and is termed HOGM_MONGODB_TableColumn. It comes as a NetBeans undertaking and it was once attempt it below GlassFish three AS.

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