Hibernate Caching

This tutorial contains description about Hibernate Caching.

Hibernate Caching

Hibernate Caching

This tutorial contains description about Hibernate Caching.

Hibernate Caching :

In a typical application ,you perform lot of operations like instantiate objects, reuse object, load object from the database ,change-update object ant so on.
You repeat these process many times as your application run. For standalone application ,object availability is not a problem but when you talk about the multiuser application and web support situation it may create problem in handling multiple call of database.
Hibernate provides Caching concept to solve this problem. Caching is designed to reduces the amount of necessary database access.
It increases your application performance and works between your application and the database as it avoids the number of database hit as many as possible.
Caching is very important in Hibernate. Hibernate utilizes multilevel caching mechanism.

Types of Caching -

Hibernate provides different types of caches and all are used for different purpose -

Session Cache : First type cache is the Session Cache. It is Hibernate mandatory cache as all the requests pass through it. When you open new session ,object is pulled and cached by the current session.
It holds the object till you commit it to the database.

Query Cache : Second cache is called the query cache and it is optional. Using this cache ,Hibernate caches queries and their results in the event the application executes the same query again.
The query cache takes memory and it is useful for queries that run frequently with the same parameters.

Second-Level Cache : Third cache is called second-level cache and optional. It is called second-level because there is already one cache is operating in Hibernate at the time a session open.

Tutorials

  1. Why hibernate is used?
  2. Hibernate Native SQL Example
  3. Hibernate Update Query
  4. Hibernate Delete Query
  5. Hibernate Count Query
  6. Writing First Hibernate Code
  7. Running First Hibernate 3.0 Example
  8. Hibernate Book
  9. Understanding Hibernate O/R Mapping
  10. Using Hibernate to generate id incrementally
  11. Hibernate Query Language
  12. Preparing table for HQL Examples
  13. Writing ORM for Insurance table
  14. HQL from clause Example
  15. Hibernate Select Clause
  16. HQL Where Clause Example
  17. Hibernate Architecture
  18. HQL Group By Clause Example
  19. hibernateTemplate-Order Results
  20. Hibernate Criteria Query Example
  21. Hibernate How To
  22. Hibernate Quickly
  23. Hibernate 3.1.2 Released
  24. HQL Order By Example
  25. Hibernate 3.1.3 Released
  26. Hibernate 3.1.1 Released
  27. Introduction to Hibernate 3.0
  28. Complete Hibernate 3.0 and Hibernate 4 Tutorial
  29. Hibernate Avg() Function (Aggregate Functions)
  30. Hibernate Max() Function (Aggregate Functions)
  31. Hibernate Min() Function (Aggregate Functions)
  32. Hibernate Criteria Expression (eq)
  33. Hibernate Criteria Expression (lt)
  34. Hibernate Criteria Expression (le)
  35. Hibernate Criteria Expression (gt)
  36. Hibernate Criteria Expression (ge)
  37. Hibernate Criteria Expression (and)
  38. Hibernate Criteria Expression (or)
  39. Hibernate Projections (rowCount or countDistinct)
  40. Hibernate Projection Count