ehcache

EHCache And Java Serialization Versioning Control

EHCache allows for persistance of the cache, and it requires all objects that are being cached to be Serializable. The objects that are being serialized and written to the Disk are being written with ObjectOutputStream, which is fixed in its required fields and UID. link text My question is: Is there a way to force the serialization [...

Does Ehcache 2.1 support the transactional cache concurrency strategy in Hibernate 3.3.2GA?

Does Ehcache 2.1 now support the transactional cache concurrency strategy in Hibernate 3.3.2GA? That is, does Hibernate, when configured to use Ehcache 2.1 as its cache provider, allow the <cache usage="transactional"/> element in a mapping file or the Hibernate entity class annotation @Cache(usage=CacheConcurrencyStrategy.READ_WRITE)? ...

Ehcache eternal cache forget items

Env: Spring 2.5.6, Hibernate 3.3.2, Ehcache 2.0.1, terracotta 3.2.1 I have a cache on an abstract class (with 5 inheritors) <cache name="com.f4.owl.domain.good.GoodType" maxElementsInMemory="15000" eternal="false" timeToIdleSeconds="0" timeToLiveSeconds="0" overflowToDisk="false"> <terracotta/> </...

Configuring OpenJPA 1.3.1 with EhCache: plugin/alias not found

I'm trying to configure ehcache with openjpa. I get the following error: org.apache.openjpa.lib.util.ParseException: Instantiation of plugin "DataCacheManager" with value "ehcache" caused an error "java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: ehcache". The alias or class name may have been misspelled, or the ...

Spring, multiple Hibernate Sessionfactories configuration

Hi there, I need to set up multiple Sessionfactories in my app, now I'm facing a problem. I can't use the 2nd level cache at the moment because only the cache from the first factory is returned. Providing a hibernate.cache.region_prefix would solve the problem I guess. How can I supply for each factory a own region per Spring XML config...

Ehcache element <cache/> does not allow attribute "transactionalMode"?

According to the Ehcache documentation, starting with version 2.0, an Ehcache cache may participate in a JTA transaction based on the value of attribute transactionalMode on element <cache/>. If this is true, then why does Ehcache, when it encounters this attribute in my Ehcache configuration file, throw the following exception and comp...

How can I force Maven to use Ehcache 2.2.0 with Hibernate 3.3.2GA?

Assuming that the two are compatible, how can I force Maven 2 to use Ehcache 2.2.0 instead of Ehcache 1.2.3 with Hibernate 3.3.2.GA? Essentially, I wish to replace the puzzling and practically cyclic dependency chain Hibernate Ehcache Integration 3.3.2.GA => Ehcache 1.2.3 => Hibernate 3.2.0.cr3 => Ehcache 1.2 with Hibernate Ehca...

Hibernate loading all entities utilizing 1st or 2nd level cache

We have an entire table of entities that we need to load during a hibernate session and the only way I know to load all entities is through an HQL query: public <T> List<T> getAllEntities(final Class<T> entityClass) { if (null == entityClass) throw new IllegalArgumentException("entityClass can't be null"); List<T> list ...

Hibernate Second Level Cache EhCache library mismatch?

I'm using Hibernate 3.5.0, JBoss AS 6 and Liquibase 1.9.5. I wanted to activate EhCache Hibernate second-level caching as follows: The first thing I do, is adding a new dependency to the pom.xml: <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-ehcache</artifactId> <version>3.5....

When overFlowToDisk gets activated in EHCACHE?

I have some questions on "overflowToDisk" attribute of element? 1) I read at this URL that : overflowToDisk sets whether element can overflow to disk when the memory store has reached the maximum limit. "Memory" above refers JVM memory allocated for Java process running EHCACHE, or is there any parameter in to specify Cache memory ...

When to go for Caching/Second level cache? Any practical scenario with specifics?

I'm working on a web based application that belongs to an automobil manufacturer, developed in Spring-Hibernate with MS SQL Server 2005 database. Through this application, end users can request for creating a Car, Bus, Truck etc through web based interfaces. When a user logs in, a HTML form gets displayed for capturing technical specif...

Prevent ehcache trying to access internet on startup

I have a fairly simple non-clustered application running ehcache with spring and hibernate. On startup I'm getting this error: <06-Sep-2010 19:14:05 o'clock BST> <Error> <Net> <Failed to communicate with proxy: 10.x.x.x/8080. Will try connection www.terracotta.org/80 now. java.net.SocketTimeoutException: connect timed out How do ...

How do I verify that EHCache's multicast auto-discovery cache-replication is working?

Hi guys, I've set up EHCache with its stock suggestion on how to set up multicast: <cacheManagerPeerProviderFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory" properties="peerDiscovery=automatic, multicastGroupAddress=230.0.0.1, multicastGroupPort=4446"/> <cacheManagerPeerListenerFactory class="net.sf.eh...

Hibernate & EhCache: net.sf.ehcache.Statistics not populated?

I think my Hibernate (3.5.3) Second Level Cache is well configured with EhCache (2.2). At least, I observe following log entries: 20:15:28 DEBUG [net.sf.ehcache.Cache#searchInStoreWithStats] persistence.unit:unitName=#pu-pay.c.u.p.model.ActionCache: persistence.unit:unitName=#pu-pay.c.u.p.model.Action store hit for c.u.p.model.Action#T...

Scaling EhCache

Hi everyone, I'm currently building an application that needs to be scalable, and therefor I'm interested in distributed caching and not replicated caching. We will be using memcache for common cache use cases. However Hibernate and Spring Security ACL both rely on EhCache which doesn't seem to have the same replication scheme as memca...

How to configure JPA 2.0 with Hibernate 3.5.2 to use EHCache as a Level 2 cache and query cache?

I found some instructions how to configure pure hibernate to use EHCache. But I can't find any instructions how to configure JPA2.0 EntityManager to use cache. Hibernate 3.5.2 is my JPA2.0 provider. edit// Is @Cacheable(true) enough for entity? Or should I use @org.hibernate.annotations.Cache to configure the entity? ...

Why is EhCacheProvider deprecated?

I am configuring my hibernate project to use a 2nd-level cache provider, so that I can take advantage of query caching. I added a dependency to ehcache: <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache-core</artifactId> <version>2.2.0</version> </dependency> I think that the provider class I want t...

How to configure EHcache for standalone Java program without using hibernate / spring interceptors?

Hi, Can anyone please post sample example to configure Ehcache for standalone java application. I have the simple requirement like, getting data from database, format that data and write to file. I am using jdbctemplate.Query is executing quickly, but retrieving data from list is taking more time. List is holding large volume of data(re...

Java ehcache disk store

I'm working on application in which I need to generate and frequently access thousands of files. For disk space usage reasons, I only want to keep around a fixed number of these files at any given time. For example, the files are being written to C:\my-folder. Once my-folder reaches 1000 files, if I need to save a new file, I would like ...

ehcache memorystoresize and diskstoresize

[Avatar] 2010-09-23 18:20:41 IST I have the following configuration for my ehcache. <CacheManager dynamicConfig="true" monitoring="autodetect" name="CacheManager1" updateCheck="true"> <diskStore path="java.io.tmpdir" /> <defaultCache clearOnFlush="true" copyOnRead="false" copyOnWrite="false" diskAccessStripes="1" diskExpiryThr...