Hibernate Tutorials

In this detailed Resource page, we feature an abundance of Hibernate Tutorials!
 
Hibernate ORM (Hibernate in short) is an object-relational mapping tool for the Java programming language. It provides a framework for mapping an object-oriented domain model to a relational database. Hibernate handles object-relational impedance mismatch problems by replacing direct, persistent database accesses with high-level object handling functions.
 
Hibernate’s primary feature is mapping from Java classes to database tables, and mapping from Java data types to SQL data types. Hibernate also provides data query and retrieval facilities. It generates SQL calls and relieves the developer from the manual handling and object conversion of the result set.
 
The mapping of Java classes to database tables is implemented by the configuration of an XML file or by using Java Annotations. When using an XML file, Hibernate can generate skeleton source code for the persistence classes. This is auxiliary when annotations are used. Hibernate can use the XML file or the Java annotations to maintain the database schema.
 
There are provided facilities to arrange one-to-many and many-to-many relationships between classes. In addition to managing associations between objects, Hibernate can also manage reflexive associations wherein an object has a one-to-many relationship with other instances of the class type.

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Hibernate Tutorials – Getting Started

Simple examples on how to download and use Hibernate so that you can develop your own Hibernate based applications

• Hibernate Tutorial For Beginners with Examples
  Hibernate is a high performance Object/Relational mapping (ORM) framework completely used in Java. Hibernate also provides query service along with persistence. This gives developers a way to map the object structures in Java classes to relational database tables.
• Hibernate Best Practices Tutorial
  Hibernate is by far the most popular JPA implementation. This popularity brings several advantages for all users. There are lots blog posts about it, questions and answers on popular forums and well-established best practices.
• Eclipse Hibernate Tools plugin Tutorial
  In this example, we will learn to install the Hibernate tools plugin for eclipse. Further, we will look at the features available through the plugin, which ease development using hibernate ORM within eclipse.
• Hibernate Example Directory Structure
  In this tutorial we will show how to setup a Hibernate project with Eclipse.
• Hibernate Configuration File Tutorial
  In this example, we will show how to configure hibernate. Hibernate requires to know in advance where to find all the mapping information related to java classes and database tables. There are some other database related settings that hibernate needs which are provided through configuration file.
• Hibernate JPA DAO Example
  This is an example of how to create Data Access Objects (DAOs), making use of the Hibernate implementation for the Java Persistence API (JPA) specification.
• Hibernate Query Language Example
  In this example we are going to see how to use Hibernate Query Language (HQL). This the query language created for Hibernate. It’s syntax is very similar to a normal SQL language but instead of tables it deals with classes and instead of columns it deals with properties or class attributes.
• Hibernate Interview Questions and Answers – The ULTIMATE List
  This is a summary of some of the most important questions concerning the Hibernate Framework, that you may be asked to answer in an interview! There is no need to worry for your next interview test, because Java Code Geeks are here for you!

Hibernate Tutorials – Functions

Learn the most famous functionalities and operations of the Hibernate Framework

• Hibernate CRUD Operations Tutorial
  A CRUD operation deals with creating, retrieving, updating, and deleting records from the table. In this tutorial we will see how it is done using Hibernate annotations. We are going to discuss 4 main functionalities: Creating a Record, Displaying Records, Updating a Record, Deleting a Record.
• Hibernate Named Query Example
  When working with Hibernate and Hibernate HQL, you will find yourself writing again and again the same tedious queries. Not only that, but most of the times these queries are scattered throughout your code making it very hard too read and even harder to maintain.
• Hibernate Join Example
  Join statements are used when one wants to fetch data from multiple tables of database. Hibernate provides support for join statements where one can write single query to fetch data from multiple tables easily. Hibernate is one of the few JPA (Java Persistence API) providers.
• Hibernate Insert Example
  In this example, we will show how to use hibernate to insert data into database. Hibernate is one of the few JPA (Java Persistence API) provider. Hibernate is extensively used for persistence layer of building a enterprise application.
• Hibernate Foreign Key Example
  Foreign key refers to single column or group of columns in table that link data present in another table through its primary key. A Foreign key can’t exist without its parent key but viceversa is not true.
• How to map a Composite Primary Key with JPA and Hibernate Example
  In this tutorial, we will show how to map the Composite Primary Key with JPA and Hibernate using Eclipse Link and MySQL in Java.
• Hibernate Session byId Example
  Hibernate Session provide different methods to fetch the data (or a single record) from the database. In this tutorial we will demonstrate the use of Session.byId() method in Hibernate using the annotation based configuration.
• Hibernate Load Example
  Hibernate Session provide different methods to fetch the data (or a single record) from the database. Two of them are – get() and load(). The functionality is similar but there is a difference between the ways they work.
• Hibernate Get Example
  Hibernate Session provide different methods to fetch data (or a single record) from the database. Two of them are – get() and load(). The functionality is similar but there is a difference between the ways they work.
• Hibernate Transaction Example
  A Transaction is a sequence of operation which works as an atomic unit. A transaction only completes if all the operations completed successfully. A transaction has the Atomicity, Consistency, Isolation, and Durability properties (ACID). In this tutorial, we are going to talk about the basics of Hibernate Transactions and Sessions.
• Hibernate Exception Handling Example
  This tutorial deals with some of the errors that developers get, while working with Hibernate. Along with the exception or error messages themselves, potential causes of these errors are often listed along with links to additional resources.
• Hibernate Batch Processing Example
  Hibernate Batch processing is an easy way to add multiple statements into a batch and execute that batch by making a single round trip to the database. This tutorial shows how to create batch insert and batch update statements using JPA and Hibernate.
• Hibernate One to One Example
  In simple terms, a One-to-One Association is similar to Many-to-One association with a difference that the column will be set as unique i.e. Two entities are said to be in a One-to-One relationship if one entity has only one occurrence in the other entity.
• Hibernate One to Many Example
  One-to-Many mapping means that one row in a table can be mapped to multiple rows in another table but multiple rows can be associated with only one instance of the first entity. It is 1-to-n relationship.
• Hibernate Many-to-Many Relationship Example (XML Mapping and Annotation)
  In this example we are going to see how to map classes to databases tables which have Many-to-Many relationships. We are going to see the mapping both with XML Mapping and with Annotations.
• Hibernate Many-to-Many Relationship with Join Table Example
  For this tutorial we are going to see how to map the classes with Annotations.
• Hibernate Example Code Using Annotations
  Hibernate annotations is the powerful way to provide the metadata for the Object and Relational Table mapping. In this tutorial we will explain how to configure Hibernate annotations to define mapping without the use of XML file.
• Hibernate Mapping Types Example
  Hello, in this tutorial we will see the different mapping types that are available in Hibernate. Hibernate is a framework that simplifies the development of Java application to interact with the database.
• Hibernate Mapping Example
  In this example, we will show you how to use hibernate with its mapping capability. We are going to show a one-to-many bi-directional mapping in hibernate using XML mappings.
• Hibernate First Level Cache Example
  In this post we will talk about the Hibernate First Level Cache Strategy. When an application repeatedly hits the database and executes a lot of queries, it’s important as developer to apply a cache between then.
• Second Level Cache in Hibernate Example
  In this example, we will demonstrate how we can use Second Level Cache in Hibernate to optimize application performance and also avoid common pitfalls.
• Hibernate Cascade example
  In this tutorial we are going to see the use of the cascade feature of relational databases and how it is applied in Hibernate.
• Hibernate One-to-Many Relationship Example (XML Mapping and Annotation)
  In this example we are going to see how to map classes to databases tables which have one-to-many relationships. We are going to see the mapping both with XML Mapping and with Annotations.
• Hibernate One-to-One Relationship Example (XML Mapping and Annotation)
  In this example we are going to see how to map classes to databases tables which have one-to-one relationships. We are going to see the mapping both with XML Mapping and with Annotations.
• Add Restrictions to the Criteria object in Hibernate
  In this example we shall show you how to add restrictions to the Criteria object in Hibernate.
• Select list of objects in Hibernate with Restrictions
  With this example we are going to demonstrate how to select a list of objects in Hibernate using Restrictions.
• Order query resultset in Hibernate with Criteria
  This is an example of how to order a query resultset in Hibernate with Criteria. In Hibernate, Criteria is a simplified API for retrieving entities by composing Criterion objects.
• Retrieve record in Hibernate with Criteria
  In this example we shall show you how to retrieve a record in Hibernate with Criteria.
• Count total records in Hibernate with Projections
  With this example we are going to demonstrate how to count total records in Hibernate using the Projections Class.
• Hibernate Criteria Example
  Hibernate Criteria is a very good interface offered by Hibernate that helps you write queries with comples search criteteria an keep your code readable and elegant.
• Pagination in Hibernate with Criteria API
  This is an example of how to use pagination in Hibernate using the Criteria API. A typical way to create pagination over the results of a database is to define the number of rows per page and the number of pages.
• Pagination in Hibernate with query results
  In this example we shall show you how to use pagination in Hibernate with query results.
• Retrieve object by Id in Hibernate
  With this example we are going to demonstrate how to retrieve an object by id in Hibernate.
• Set limit in Hibernate query result
  This is an example of how to set limit in Hibernate query result.
• Delete persistent object with Hibernate
  In this example we shall show you how to delete a persistent object with Hibernate.
• Retrieve objects in Hibernate with HQL query
  With this example we are going to demonstrate how to retrieve objects in Hibernate with HQL query.
• Persist object with Hibernate
  This is an example of how to persist an object with Hibernate.
• Create Hibernate SessionFactory Example
  In this example we shall show you how to create a new SessionFactory example in Hibernate.
• Hibernate Validator Example
  This is an example of how to make use of Hibernate validator API. Hibernate validator can be used to validate data, which is a very important issue in every layer of an application.
• Hibernate Interceptor Example
  In this example we are going to see how to use Hibernate Interceptor. During a Hinernate transaction, an object might go through a number of phases: it is created, it gets updated, it gets persisted or deleted.

Hibernate Tutorials – Integrations

Learn how to use your Hibernate application with the most powerful 3rd party frameworks, interfaces and services

• Java Spring and Hibernate Tutorial for Beginners
  In this tutorial, we will go over the fundamentals of setting up a Spring project integrated with Hibernate. Next we will perform CRUD operations against an Oracle database.
• Spring Hibernate Integration Example – Mysql and Maven Showcase
  In this tutorial we shall show you how to create a simple Spring Hibernate MySql example.
• Spring and Hibernate Example
  In this tutorial, we will create a simple application that uses the spring and Hibernate framework to display the user details on a webpage. For this tutorial, we’ll have a welcome page that fetches the user records from the MySQL database and displays it on the interface.
• Spring MVC Hibernate Tutorial
  To develop web applications these days, we use Modern View Controller architecture. Spring provides MVC framework with ready components that can be used to develop flexible and loosely coupled web applications.
• Spring MVC and Hibernate Login Form Example
  Hello readers, in this tutorial we will create a simple login application that uses the spring and Hibernate framework to validate the user’s credentials.
• Spring Batch Hibernate Example
  This article is a tutorial about Spring Batch with Hibernate. We will use Spring Boot to speed our development process.
• JSF Hibernate CRUD Example
  In this tutorial we will show the usage of Hibernate framework in a simple jsf application. We will demonstrate the following: Student form, Performing database operations, Sending & retrieving data to & from a managed bean. This example will show how to develop a simple CRUD (Create, Read, Update, Delete) application and lets you manage a student’s database.
• Hibernate Logging Configuration – SLF4J + Log4j and Logback
  In this example we are going to see how to configure Logging in Hibernate. SLF4J (Simple Logging Facade for Java) is a very nice logging framework that Hibernate uses, in order to output your logs using your favorite logging tool ( log4j, JCL, JDK logging, logback) to your preferred location. We are going to use SLF4J along with log4j and Logback.
• Hibernate SQL Parameter Values using Log4j Example
  While debugging an application developers want to see the actual parameter values in the Hibernate logs i.e. basically, they want to get rid of the question marks in the logs. In this tutorial, we will demonstrate the use of Log4j to display the real-time SQL parameter values.
• Hibernate with Gradle Example
  In this article, we will discuss a Gradle-based Spring Boot application that uses Hibernate as its persistence framework to interact with a MySQL database.
• Hibernate Maven Example
  We used JDK, Eclipse IDE and Maven build tool. This quick guide will show you how to use Maven to generate a simple Java project, and uses Hibernate to insert a record into the MySQL database.
• Hibernate JNDI Example
  A database connection is expensive to make, yet all web applications use it. That is why most of the servlet containers provide built-in support for connection pooling. We can leverage this connection pooling in any webserver by registering the datasource via the JNDI context. In this tutorial, we will explain how to configure a datasource in Tomcat and how to obtain an instance of this datasource via JNDI.
• Hibernate JBoss Tools Installation in Eclipse + Mapping Generation Example
  In Eclipse you can use JBoss Hibernatate Tools, with which you can automatically generate all the files you need to work with Hibernate. In this tutorial we are going to see how to install Hibernate Tools in Eclipse and explore how you can generate mapping files automatically.
• Hibernate in Eclipse with PostgreSQL Example
  his article will show you a simple example of how to use Hibernate in Eclipse with PostgreSQL. PostgreSQL is an object-relational database management system.
• Hibernate Connection Pool configuration with C3P0 Example
  This is a tutorial on how to use C3P0 connection pool framework with Hibernate. Basically what a connection pool does is to create a number of connections (a pool of connections) with the database server and keep them idle.

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