diff -r fd16c54261b3 -r 90ce3da70b43 jdk/src/share/classes/javax/naming/package.html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/share/classes/javax/naming/package.html Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,144 @@ + + +
+ + + + +Provides the classes and interfaces for accessing naming services. + ++This package defines the naming operations of the Java Naming and +Directory InterfaceTM (JNDI). +JNDI provides naming and directory functionality to applications +written in the Java programming language. It is designed to be +independent of any specific naming or directory service +implementation. Thus a variety of services--new, emerging, and +already deployed ones--can be accessed in a common way. + + +
+This package defines the notion of a context, represented +by the Context interface. +A context consists of a set of name-to-object bindings. +Context is the core interface for looking up, binding, unbinding, +and renaming objects, and for creating and destroying subcontexts. +
+lookup() is the most commonly used operation. +You supply lookup() +the name of the object you want +to look up, and it returns the object bound to that name. +For example, the following code fragment looks up +a printer and sends a document to the printer object +to be printed: + +
++ ++Printer printer = (Printer)ctx.lookup("treekiller"); +printer.print(report); ++
+Every naming method in the Context +interface has two +overloads: one that accepts a +Name argument and one that accepts a string name. +Name is an interface that represents a generic +name--an ordered sequence of zero of more components. +For these methods, Name can be used to represent a +composite name (CompositeName) +so that you can name an object using a name which spans multiple namespaces. +
+The overloads that accept Name +are useful for applications that need to manipulate names: composing +them, comparing components, and so on. +The overloads that accept string names are likely to be more useful +for simple applications, such as those that simply read in a name +and look up the corresponding object. +
+ +
+The Binding class is actually a subclass of +NameClassPair, which consists +simply of the object's name and the object's class name. +The NameClassPair is useful when you only want +information about the object's class and do not want to +pay the extra cost of getting the object. + +