[jboss-dev-forums] [Design of POJO Server] - Bean metadata views

[scott.stark@jboss.org]

One thing I'm starting to work on in the context of the profile service managed objects/properties are annotations for describing which properties in an aggregate metadata bean structure (org.jboss.resource.metadata.mcf.ManagedConnectionFactoryDeploymentGroup) should be exposed as managed properties. Its possible that the object tree of exposed as the management interface has a different structure (generally flatter). I can see this being used by jmx, jsr77 aspects as well. 

For example, the security-domain managed property for the nth datasource deployment comes from the ManagedConnectionFactoryDeploymentGroup/deployments[n]/securityMetaData/domain property:


  | @ManagedObject(...)
  | class ManagedConnectionFactoryDeploymentGroup
  | {
  |    List<ManagedConnectionFactoryDeploymentMetaData> deployments = 
  |    class ManagedConnectionFactoryDeploymentMetaData
  |    {
  |       @XmlElement(name="jndi-name")
  |       @ManagedProperty(name="jndi-name", required=true, description="...", ...)
  |       private String jndiName;
  | 
  |       @XmlElement(name="min-pool-size")
  |       @ManagedProperty(name="min-pool-size", required=false, ...)
  |       private int minSize = 0;
  | 
  |       private SecurityMetaData securityMetaData = new SecurityMetaData() =
  |       class SecurityMetaData
  |       {
  |          @ManagedProperty(name="security-domain")
  |          private String domain;
  |    
  |          protected SecurityDeploymentType type;
  |       }
  |    }
  | 
  | }
  | 

There is an xpath like aspect for the metadata property being referenced, plus the managed property info. An xpath type syntax for a java bean object structure is a rather general feature that could be part of an object binding library. Did anything like this come out of the jbossxb/jaxb work?


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