J2EE Frameworks (Hibernate) Training @ Delhi & Gurgaon
- Object/Relational Paradigms
- O/R Mismatch
- Object Relational Mapping (ORM)
- Java ORM/Persistent Frameworks
- Hibernate Architecture and API
- Hibernate Installation/Setup
- Configuration Properties
- Mapping Files
- Basic Mapping
- Class to Table Mappings
- Property Mapping
- Natural Keys
- Identifier Exposure
- Quoting SQL Tables and Columns
- Entity Lifecycle
- Transient State
- Persistent State
- Persistent Object Updates and Automatic Dirty Checking
- Detached State
- Object Identifiers Revisited
- Domain Model
- Entities and Values
- Bidirectional Many-to-one
- Other Collections
- Bidirectional One-to-one
- Bidirectional Many-to-many
- Collections of Value Types
- Collections of Components
- Sorting Collections
- Inheritance Mapping Strategies
- Table per concrete class
- Table per subclass
- Table per hierarchy
- Inheritance Mapping Pros/Cons
- Table per concrete class with unions
- Choosing an Inheritance Strategy
- Lazy Loading
- Eager Loading
- What’s a Proxy?
- Detached Objects and Proxies
- Polymorphic Associations Revisited
- Custom Mapping Types
- User Type
- Hibernate Object Fetching Options
- Hibernate Query
- HQL Parameters
- Named Queries
- Native SQL
- Query By Example
- Query Hints
- Query Option Pros/Cons
- The Java Transaction
- Hibernate Transaction Configuration
- Hibernate Transaction API
- Isolation Levels
- Optimistic Locking
- Pessimistic Locking
- N+1 Selects
- Join Fetching
- Sub select Fetching
- Batch Fetching
- Queries and Fetching Strategies
- Cartesian product Problem
- Hibernate Caching Architecture
- First Level Cache
- Second Level Cache
- Cache Concurrency
- Configuring Second Level Cache
- Annotations Pros/Cons
- Configuring Hibernate Annotations
- EJB3/JPA Annotations
- Hibernate Annotations
Inquiry for J2EE Frameworks (Hibernate) Training Course
Please find the course Duration:-
|Course Module||Course Duration|
|Hibernate Framework||20 Hours|
What is Hibernate?
Hibernate framework make things easier and the development of java application to act together with the database. Hibernate is referred to an open source, ORM (Object Relational Mapping) and lightweight tool. An ORM tool is helpful in the data creation, data handling and data access. It is also known as a programming practice that record the thing to the data stored in the database. Moreover, the Hibernate framework is known as opensource under the LGPL license as well as lightweight.
How Hibernate Installation?
Download the latest version of the Hibernate Installation file, you require to perform following two easy steps. You should confirm that you are setting your CLASSPATH variable correctly or else you will face difficulty while compiling your application.
After that you need to copy all the library files from /lib into your CLASSPATH, and modify your classpath variable to comprise all the JARs:
At last, copy hibernate3.jar file direct into your CLASSPATH. This file remains in the root directory of the installation as well as the main JAR that Hibernate requires to do its job
What is first level cache in hibernate?
The first-level cache is referred to a Session cache which is a compulsory cache through which all requests should pass. The Session object maintains an object under its own power before entrusting it to the database.
If you problems multiple updates to an object, Hibernate aims to delay doing the update as long as possible to decrease the number of update SQL statements permitted. If you end up the session, almost every object being cached is lost and either continues or updated in the record.
What is Object Relational Mapping?
Object-relational mapping (ORM) is known as a right mechanism that makes it simple to address access as well as control objects without thinking how those objects connected to their data sources. ORM permits programmers to keep a constant view of objects in the mean while, even as the sources that drive them, the sinks that find them and the applications that contact them change.
What is Session in hibernate?
A Session is utilized to find a physical connection simply with a database. The Session object is lightweight and planned to be instantiated every time an interaction is required with the database. Persistent objects are directly saved and get back with the help of a Session object. The session objects need not be kept open for a long time as they are not normally thread safe and they should be designed and destroyed them as required.
What the difference is between get and load in Hibernate?
Both get and load in Hibernate are from Session interface, and we will term them as session.get() & session.load(). Moreover, they will be make use for retrieving the object (a row) right from the database.
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