What is InitialContext in Java with example?

What is InitialContext in Java with example?

The initial context implements the Context interface and provides the starting point for resolution of names. When the initial context is constructed, its environment is initialized with properties defined in the environment parameter passed to the constructor, and in any application resource files.

What is initial context factory in Java?

Interface InitialContextFactory This interface represents a factory that creates an initial context. The JNDI framework allows for different initial context implementations to be specified at runtime. The initial context is created using an initial context factory.

What is JNDI lookup?

The Java Naming and Directory Interface (JNDI) is a Java API for a directory service that allows Java software clients to discover and look up data and resources (in the form of Java objects) via a name. Like all Java APIs that interface with host systems, JNDI is independent of the underlying implementation.

What is the provider URL?

A provider URL contains bootstrap server information that the initial context factory can use to obtain an initial context. Any property values passed in directly to the InitialContext constructor take precedence over settings of those same properties found elsewhere in the environment.

What is WebLogic JNDI WLInitialContextFactory?

The WLInitialContextFactory creates initial contexts for accessing the WebLogic naming service. It can also be used to create a multitier connection to another naming service through a WebLogic Server.

What are JNDI properties?

properties, where JAVA_HOME is the file directory that contains your JRE (Java Runtime Environment). The JNDI then makes the properties from these files available to the service providers and other components that need to use them.

What is JNDI initial context factory?

You use an initial context factory to obtain an initial context–a reference to a JNDI namespace. Using the initial context, you can use the JNDI API to look up an enterprise bean, resource manager connection factory, environment variable, or other JNDI-accessible object.

What is Java comp ENV?

java:comp/env is the node in the JNDI tree where you can find properties for the current Java EE component (a webapp, or an EJB). Context envContext = (Context)initContext.lookup(“java:comp/env”);

What is difference between JNDI and JDBC?

JDBC is Java Database Connectivity API, while JNDI is Java Naming and Directory Interface API. The main thing here is that in a JNDI directory you’re actually storing a JDBC DataSource, so, you’re simply using JDBC to obtain a Connection via JNDI lookup.

How do I find my identity URL?

Getting the Identity Provider URL

  1. Open the Windows PowerShell command prompt window on the AD FS server. Select the.
  2. Type the following command at the Windows PowerShell command prompt: Get-ADFSEndpoint.
  3. Find the FullUrl value returned for the SAML 2.0/WS-Federation protocol, as shown in the following image:

How do I find my connection URL?

The website’s URL is in the address bar, which is usually at the top of your web browser window. This bar may be at the bottom of the window in Chrome on some Androids. Copy the URL. If you want to paste the URL into a message, post, or another app, you can copy and paste it from the address bar.

What is the environment associated with this initialcontext?

The environment associated with this InitialContext. It is initialized to null and is updated by the constructor that accepts an environment. See Also: addToEnvironment(java.lang.String, java.lang.Object), removeFromEnvironment(java.lang.String), getEnvironment()

Is the initialcontext object provided by the Tomcat server?

I believe the InitialContext is provided by the tomcat server. But when I try to call the same utility from a standalone Java program, the initContext object is null. How can I explicitly provide all the necessary properties that Context object is expecting.

How do I find the initial context of a URL string?

If a URL string (with syntax scheme_id:rest_of_name) is passed to methods in InitialContext, either as a Stringargument or as the first component of Name, the URL’s scheme id is used to locate the context factory for handling that scheme. If none is found, the initial context specified by “java.naming.factory.initial”is used.

What special JNDI properties can be specified in the context?

In addition, a small number of standard JNDI properties may be specified as system properties or as applet parameters (through the use of Context.APPLET ). These special properties are listed in the field detail sections of the Context and LdapContext interface documentation.

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