What is JNDI connection in Java?

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. connecting a Java application to an external directory service (such as an address database or an LDAP server)

What is benefit of JNDI lookup over JDBC?

Advantages of using JNDI Abstracting the lookup of resources means not having to, for example, change and deploy properties/configuration files for each environment separately. The more varying deployment stages, such as test, production, etc., the more benefit you would accrue from using JNDI.

What is the use of JNDI in Java?

The Java Naming and Directory Interface™ (JNDI) is an application programming interface (API) that provides naming and directory functionality to applications written using the Java™ programming language. It is defined to be independent of any specific directory service implementation.

What is JNDI connection pooling?

A connection pool improves performance and scalability by allowing multiple clients to share a small number of physical connections. You set up the connection pool in your application server and access it through Java Naming and Directory Interface (JNDI).

What is simple JNDI?

Simple-JNDI is intended to solve two problems. The first is to test or use classes that depend on JNDI environment objects (most known a DataSource) provided by a Java EE container outside of such a container. Simple-JNDI’s JNDI implementation is entirely memory based. No server instance is started.

How can I get JNDI?

To Connect to a Data Source Use a JNDI lookup to obtain a data source reference. To obtain a reference to a data source bound to the JNDI context, look up the data source’s JNDI name from the initial context object. The object retrieved in this way is cast as a DataSource type object: ds = (DataSource)ctx.

How do I know my JNDI name?

To view objects in the JNDI tree: In the left pane of the Console, expand Environment > Servers. On the Server summary page, click the name of the server, for example, myserver . On the Configuration > General page, click View JNDI Tree.

What are JNDI properties?

JMS clients use property files to create a JNDI IntialContextFactory. If you put the JNDI configuration in the jndi. properties file and place this file on your class path, you can access the InitialContext and you can search for the ConnectionFactory objects and destinations.

What is JNDI exception?

The JNDI has a rich exception hierarchy stemming from the NamingException class. The class names of the exceptions are self-explanatory and are listed here. To handle a particular subclass of NamingException specially, you catch the subclass separately.

Do we need to close JDBC connection?

It is important to close a JDBC Connection once you are done with it. A database connection takes up an amount of resources, both inside your own application, but especially on the database server.

Why do we need connection pooling?

Using connection pools helps to both alleviate connection management overhead and decrease development tasks for data access. Each time an application attempts to access a backend store (such as a database), it requires resources to create, maintain, and release a connection to that datastore.

What is JNDI provider URL?

provider. url : The name of the environment property for specifying the location of the JBoss JNDI service provider the client will use. The NamingContextFactory class uses this information to know which JBossNS server to connect to. The value of the property should be a URL string.

What’s the difference between JDBC and JNDI in Java?

Well these are two different things. 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 to get database connection in JNDI framework?

In that case you define the database connection to the container, use JNDI to get the DataSource, and get the connection from that. When you do a JNDI lookup to get your DataSource, the JNDI framework looks for an initial context factory (a class that implements InitialContextFactory).

Can you use JNDI to look up DataSource?

You can use JNDI to look up a DataSource, which is a factory for connections. The DataSource is part of the JDBC API though, so JNDI works with JDBC as opposed to being alternatives here. Are you talking about using JDBC against a database for directory information, vs. using JNDI against an LDAP repo?

How is JNDI different from a directory service?

With JNDI you register a datasource in a directory service which can be looked up by its name. Thus JDBC and JNDI are completly different and not interchangeable. This is what i have found about JNDI and JDBC. JNDI: This is a technology which works like a telephone directory which is used to search the name on server and datasource remotely.