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36 Chapter 6. The JNDI Naming Service ReadOnlyAccessFilter org.jboss.invocation.http.servlet.ReadOnlyAccessFilter readOnlyContext readonly The top level JNDI context the filter will enforce read-only access on. If specified only Context.lookup operations will be allowed on this context. Another other operations or lookups on any other context will fail. Do not associate this filter with the JMXInvokerServlets if you want unrestricted access. invokerName jboss:service=Naming The JMX ObjectName of the naming service mbean ReadOnlyAccessFilter /readonly/* JMXInvokerServlet /readonly/JMXInvokerServlet/* The readOnlyContext parameter is set to readonly which means that when you access JBoss through the ReadOnlyJNDIFactory, you will only be able to access data in the readonly context. Here is a code fragment that illustrates the usage: Properties env = new Properties(); env.setProperty(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.HttpNamingContextFactory"); env.setProperty(Context.PROVIDER_URL, "http://localhost:8080/invoker/ReadOnlyJNDIFactory"); Context ctx2 = new InitialContext(env); Object data = ctx2.lookup("readonly/data"); Attempts to look up any objects outside of the readonly context will fail. Note that JBoss doesn't ship with any data in the readonly context, so the readonly context won't be bound usable unless you create it. 6.5. Additional Naming MBeans In addition to the NamingService MBean that configures an embedded JBossNS server within JBoss, there are several additional MBean services related to naming that ship with JBoss. They are JndiBindingServiceMgr, NamingAlias, ExternalContext, and JNDIView. 6.5.1. JNDI Binding Manager The JNDI binding manager service allows you to quickly bind objects into JNDI for use by application code. The MBean class for the binding service is org.jboss.naming.JNDIBindingServiceMgr. It has a single attribute, BindingsConfig, which accepts an XML document that conforms to the jndibinding-service_1_0.xsd schema. The content of the BindingsConfig attribute is unmarshalled using the JBossXB framework. The following is an MBean definition that shows the most basic form usage of the JNDI binding manager service.
JBoss Enterprise Application Platform Common Criteria Certification 5 Administration And Configuration Guide 37 Hello, JNDI! This binds the text string "Hello, JNDI!" under the JNDI name bindexample/message. An application would look up the value just as it would for any other JNDI value. The trim attribute specifies that leading and trailing whitespace should be ignored. The use of the attribute here is purely for illustrative purposes as the default value is true. InitialContext ctx = new InitialContext(); String text = (String) ctx.lookup("bindexample/message"); String values themselves are not that interesting. If a JavaBeans property editor is available, the desired class name can be specified using the type attribute http://www.jboss.org The editor attribute can be used to specify a particular property editor to use. 127.0.0.1 For more complicated structures, any JBossXB-ready schema may be used. The following example shows how a java.util.Properties object would be mapped. key1 value1 key2 value2 6.5.2. The org.jboss.naming.NamingAlias MBean The NamingAlias MBean is a simple utility service that allows you to create an alias in the form of a JNDI javax.naming.LinkRef from one JNDI name to another. This is similar to a symbolic link in the Unix file system. To an alias you add a configuration of the NamingAlias MBean to the jbossservice.xml configuration file. The configurable attributes of the NamingAlias service are as follows: FromName: The location where the LinkRef is bound under JNDI. ToName: The to name of the alias. This is the target name to which the LinkRef refers. The name
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** * Annotation for specifying the
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Oracle 10g: org.hibernate.dialect.O
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That's it; that's all it takes to g
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Application Platform ships with a d
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ean. By default true, since replica
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a different physical host. If not a
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deployment (war, ear, jar, whatever
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The available attributes in the FD
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Example A.10. Sybase Datasource [ 1
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Example B.2. Filtering App1 Log Out
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