Book Image

WildFly Configuration, Deployment, and Administration

By : Francesco Marchioni, Christopher Adam M Ritchie
Book Image

WildFly Configuration, Deployment, and Administration

By: Francesco Marchioni, Christopher Adam M Ritchie

Overview of this book

Table of Contents (19 chapters)
WildFly Configuration, Deployment, and Administration Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Caching entities


Unless you have set shared-cache-mode to ALL, Hibernate will not automatically cache your entities. You have to select which entities or queries need to be cached. This is definitely the safest option since indiscriminate caching can hurt performance. The following example shows how to do this for JPA entities using annotations:

import javax.persistence.*;
import org.hibernate.annotations.Cache;
import org.hibernate.annotations.CacheConcurrencyStrategy;

@Entity
@Cacheable
@Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL, region ="properties") 

public class Property {

@Id
@Column(name="key")
private String key;

@Column(name="value")
private String value;

// Getter & setters omitted for brevity
}

Using JPA annotations

The @javax.persistence.Cacheable annotation dictates whether this entity class should be cached in the second-level cache. This is only applicable when the shared-cache-mode is not set to ALL.

Using Hibernate annotations

The @org.hibernate.annotations...