For example, to obtain a PojoCache instance and start the cache lifestyle automatically, we can do:. For example, when you fail over to the replicated node, you want to get the object reference from the replicated cache instance. The replication level is fine-grained and is performed automatically once the POJO is mapped into the internal cache store. If the object is not instrumented, but serializable, POJO Cache will simply treat it as an opaque "primitive" type. Once your cache is deployed, in order to use it with an in-VM client such as a servlet, a JMX proxy can be used to get a reference to the cache:.
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If we have two Person instances that share the same Addressupon replication, it pojocafhe.jar be split into two separate Address instances instead of just one. The second one is org.
Pojocachd.jar example, if a Student class is a subclass of PersonJBossAop will automatically instrument it as well! Below is an Ant snippet that defines the library needed for the various Ant targets that we are listing here.
In addition, object identity and object references are preserved.
Download jbosscache-pojo.jar : jbosscache « j « Jar File Download
POJO Cache will just redirect the call back to the in-memory pkjocache.jar. Main JBoss Aop library. On the first cache instance, both joe and mary are attached as above. Here are the ant snippet from one-test-pojofor example.
It requires the following libraries in addition to jboss-cache. There pojocache.kar two steps needed by JBoss Aop: However, if you can use annotation to specify the POJO instrumentation, there is no need for a pojocache-aop.
This feature is explained in more detail later. This is useful for resusing the same cache instance to store custom data, along with the POJO model.
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The wildcard at the end of the expression signifies all fields in the POJO You can potentially replace specific class name with wildcard that includes all the POJOs inside the same package space The instanceof operator declares any sub-type or sub-class of the specific POJO will also be "aspectized". In JBoss Cache, it is done via a combination of an eviction pojocache.jaf and a cache loader.
But above statements basically declare all field read and write operations in classes Address and Person will be "prepared" or "aspectized". For example, when you fail over to the replicated node, you want to get the object reference from the replicated cache instance.
We will keep adding troubleshooting tips there. Below is a snapshot of files that are generated when aopc is applied. Once your cache is deployed, in order to use it with an in-VM client pojovache.jar as a servlet, a JMX proxy can be used to get a reference to the cache:. Ant target for running load-time instrumentation using specialized class loader.
If the collection is referenced from another object, then the calling app can obtain the proxy by using the publishing mechanism provided by the object e.
Source code: Class PojoCache.java part of norm version 0.7
Afterward, any field modification will invoke the corresponding CacheFieldInterceptor instance. POJO Cache internally uses the JBoss Aop framework to both intercept object field access, and to provide an internal interceptor stack for centralizing common behavior e. There is no requirement to figure out the ObjectName of the underlying cache's CacheJmxWrapper and register with that.
It is well suited for aop declaration since there will be no need for external metadata xml descriptor.
Person, Student, and Address. In AS 5, if you're using a server config based on the standard all config, then that's all you need to do; all required jars will be on the classpath.
If replication or persistence is needed, the object will then need to implement the Serializable interface. For reference, here is annotation definition from pojocache-aop. The file now consists of the interceptor stack specification, as well as annotations for POJO instrumentation.
Download : jbosscache « j « Jar File Download
It also provides a number of configurable aspects such as node locking strategies, data isolation, eviction, pojocachhe.jar so on.
For example, a plain Cache associated with a jboss. In this section, we will explain the physical mapping model, that is, how do we map the POJO into Core Cache for transactional state pojocaceh.jar. The simplest way to do this is to copy the jars from the PojoCache distribution's lib directory to the server config's lib directory.
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