- Java Hibernate Cookbook
- Table of Contents
- Java Hibernate Cookbook
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Setting Up Hibernate
- Introduction
- Getting the required libraries for hibernate
- Creating a hibernate persistent class
- Providing an XML-based hibernate mapping
- Providing an annotation-based hibernate mapping
- Providing a hibernate configuration using an XML file
- Providing a hibernate configuration using the properties file
- Configuring hibernate programmatically
- 2. Understanding the Fundamentals
- Introduction
- Building a SessionFactory
- Creating a generic SessionFactory provider class
- Opening a new session
- Opening a stateless session
- Saving an object to the database
- Fetching an object from the database
- Removing an object from the database
- Updating an object
- Creating a criteria
- Restricting the results using a criteria
- Pagination using a criteria
- Sorting the results
- Transforming a result
- Using basic projection
- How to do it...
- Scenario 1:
- Scenario 2:
- Code
- Output
- 3. Basic Annotations
- Introduction
- Declaring a class as an entity and creating a table in the database – @Entity and @Table
- Creating a column in the table – @Column
- Creating a primary key and composite primary key column – @Id and @IdClass
- Creating an autogenerator column
- How to do it…
- There's more…
- Attributes available in the @GeneratedValue annotation
- Attributes available in @TableGenerator annotation
- name
- table
- pkColumnName
- valueColumnName
- pkColumnValue
- initialValue
- allocationSize
- 4. Working with Collections
- Introduction
- Persisting List
- Persisting Set
- Persisting Map
- Persisting Array
- Getting ready
- How to do it…
- Inserting a record
- Retrieving a record
- Code
- Output
- 5. Working with Associations
- 6. Querying
- 7. Advanced Concepts
- Introduction
- Working with a first-level cache
- Working with a second-level cache
- Working with a query cache
- Working with the table per class hierarchy strategy of inheritance
- Working with the table per subclass strategy of inheritance
- Working with the table per concrete class strategy of inheritance
- Working with the versioning of objects
- Maintaining the history of an object
- Working with an interceptor
- Working with batch processing
- 8. Integration with Other Frameworks
- Index
- How to do it...
In this chapter, we will cover the following recipes:
- Declaring a class as an entity and creating a table in the database –
@Entityand@Table - Creating a column in the table –
@Column - Creating a primary key and composite primary key column –
@Idand@IdClass - Creating an
autogeneratorcolumn
Annotation is used to provide a metadata of code. It is a part of the code file itself. It is used to give some extra information about the code and can be used with variables, method packages, the interface, or the class itself.
The advantages of annotation are that it's easy to use and makes the development process faster. Before annotation was introduced, there were many methodologies which were used to provide information to the code, such as XML-based mapping. Here, we will take a look at how annotations are useful in the development process.
In this chapter, we will consider the basic and necessary annotations used to start development using hibernate.
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