2.3.3. Command Line Access to JMX ....................................................................................55
2.3.3.1. Connecting twiddle to a Remote Server ..............................................................55
2.3.3.2. Sample twiddle Command Usage ......................................................................55
2.3.4. Connecting to JMX Using Any Protocol .......................................................................58
2.4. Using JMX as a Microkernel ...................................................................................................59
2.4.1. The Startup Process .....................................................................................................59
2.4.2. JBoss MBean Services .................................................................................................60
2.4.2.1. The SARDeployer MBean .................................................................................61
2.4.2.2. The Service Life Cycle Interface ........................................................................64
2.4.2.3. The ServiceController MBean ...........................................................................64
2.4.2.4. Specifying Service Dependencies ......................................................................66
2.4.2.5. Identifying Unsatisfied Dependencies ................................................................67
2.4.2.6. Hot Deployment of Components, the URLDeploymentScanner ...........................68
2.4.3. Writing JBoss MBean Services ....................................................................................69
2.4.3.1. A Standard MBean Example .............................................................................70
2.4.3.2. XMBean Examples ...........................................................................................73
2.4.4. Deployment Ordering and Dependencies ......................................................................81
2.5. JBoss Deployer Architecture ...................................................................................................90
2.5.1. Deployers and ClassLoaders ........................................................................................92
2.6. Remote Access to Services, Detached Invokers ........................................................................94
2.6.1. A Detached Invoker Example, the MBeanServer Invoker Adaptor Service ......................96
2.6.2. Detached Invoker Reference ......................................................................................100
2.6.2.1. The JRMPInvoker - RMI/JRMP Transport .......................................................100
2.6.2.2. The PooledInvoker - RMI/Socket Transport .....................................................101
2.6.2.3. The IIOPInvoker - RMI/IIOP Transport ...........................................................102
2.6.2.4. The JRMPProxyFactory Service - Building Dynamic JRMP Proxies ..................102
2.6.2.5. The HttpInvoker - RMI/HTTP Transport ..........................................................102
2.6.2.6. The HA JRMPInvoker - Clustered RMI/JRMP Transport ..................................103
2.6.2.7. The HA HttpInvoker - Clustered RMI/HTTP Transport .....................................103
2.6.2.8. HttpProxyFactory - Building Dynamic HTTP Proxies .......................................103
2.6.2.9. Steps to Expose Any RMI Interface via HTTP ..................................................104
3. Naming on JBoss ............................................................................................................................106
3.1. An Overview of JNDI ..........................................................................................................106
3.1.1. Names ......................................................................................................................106
3.1.2. Contexts ...................................................................................................................107
3.1.2.1. Obtaining a Context using InitialContext ..........................................................107
3.2. The JBossNS Architecture ....................................................................................................108
3.3. The Naming InitialContext Factories .....................................................................................111
3.3.1. The standard naming context factory ..........................................................................111
3.3.2. The org.jboss.naming.NamingContextFactory .............................................................112
3.3.3. Naming Discovery in Clustered Environments ............................................................112
3.3.4. The HTTP InitialContext Factory Implementation .......................................................113
3.3.5. The Login InitialContext Factory Implementation .......................................................114
3.3.6. The ORBInitialContextFactory ...................................................................................114
3.4. JNDI over HTTP ..................................................................................................................115
3.4.1. Accessing JNDI over HTTP .......................................................................................115
3.4.2. Accessing JNDI over HTTPS .....................................................................................118
3.4.3. Securing Access to JNDI over HTTP ..........................................................................120
3.4.4. Securing Access to JNDI with a Read-Only Unsecured Context ...................................121
The JBoss 4 Application Server Guide
JBoss Release 5 iii
