/*
* @(#)NameClassPair.java 1.10 03/12/19
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.naming;
/**
* This class represents the object name and class name pair of a binding
* found in a context.
*<p>
* A context consists of name-to-object bindings.
* The NameClassPair class represents the name and the
* class of the bound object. It consists
* of a name and a string representing the
* package-qualified class name.
*<p>
* Use subclassing for naming systems that generate contents of
* a name/class pair dynamically.
*<p>
* A NameClassPair instance is not synchronized against concurrent
* access by multiple threads. Threads that need to access a NameClassPair
* concurrently should synchronize amongst themselves and provide
* the necessary locking.
*
* @author Rosanna Lee
* @author Scott Seligman
* @version 1.10 03/12/19
*
* @see Context#list
* @since 1.3
*/
/*
* <p>
* The serialized form of a NameClassPair object consists of the name (a
* String), class name (a String), and isRelative flag (a boolean).
*/
public class NameClassPair implements java.io.Serializable {
/**
* Contains the name of this NameClassPair.
* It is initialized by the constructor and can be updated using
* <tt>setName()</tt>.
* @serial
* @see #getName
* @see #setName
*/
private String name;
/**
*Contains the class name contained in this NameClassPair.
* It is initialized by the constructor and can be updated using
* <tt>setClassName()</tt>.
* @serial
* @see #getClassName
* @see #setClassName
*/
private String className;
/**
* Contains the full name of this NameClassPair within its
* own namespace.
* It is initialized using <tt>setNameInNamespace()</tt>
* @serial
* @see #getNameInNamespace
* @see #setNameInNamespace
*/
private String fullName = null;
/**
* Records whether the name of this <tt>NameClassPair</tt>
* is relative to the target context.
* It is initialized by the constructor and can be updated using
* <tt>setRelative()</tt>.
* @serial
* @see #isRelative
* @see #setRelative
* @see #getName
* @see #setName
*/
private boolean isRel = true;
/**
* Constructs an instance of a NameClassPair given its
* name and class name.
*
* @param name The non-null name of the object. It is relative
* to the <em>target context</em> (which is
* named by the first parameter of the <code>list()</code> method)
* @param className The possibly null class name of the object
* bound to name. It is null if the object bound is null.
* @see #getClassName
* @see #setClassName
* @see #getName
* @see #setName
*/
public NameClassPair(String name, String className) {
this.name = name;
this.className = className;
}
/**
* Constructs an instance of a NameClassPair given its
* name, class name, and whether it is relative to the listing context.
*
* @param name The non-null name of the object.
* @param className The possibly null class name of the object
* bound to name. It is null if the object bound is null.
* @param isRelative true if <code>name</code> is a name relative
* to the target context (which is named by the first parameter
* of the <code>list()</code> method); false if <code>name</code>
* is a URL string.
* @see #getClassName
* @see #setClassName
* @see #getName
* @see #setName
* @see #isRelative
* @see #setRelative
*/
public NameClassPair(String name, String className, boolean isRelative) {
this.name = name;
this.className = className;
this.isRel = isRelative;
}
/**
* Retrieves the class name of the object bound to the name of this binding.
* If a reference or some other indirect information is bound,
* retrieves the class name of the eventual object that
* will be returned by <tt>Binding.getObject()</tt>.
*
* @return The possibly null class name of object bound.
* It is null if the object bound is null.
* @see Binding#getObject
* @see Binding#getClassName
* @see #setClassName
*/
public String getClassName() {
return className;
}
/**
* Retrieves the name of this binding.
* If <tt>isRelative()</tt> is true, this name is relative to the
* target context (which is named by the first parameter of the
* <tt>list()</tt>).
* If <tt>isRelative()</tt> is false, this name is a URL string.
*
* @return The non-null name of this binding.
* @see #isRelative
* @see #setName
*/
public String getName() {
return name;
}
/**
* Sets the name of this binding.
*
* @param name the non-null string to use as the name.
* @see #getName
* @see #setRelative
*/
public void setName(String name) {
this.name = name;
}
/**
* Sets the class name of this binding.
*
* @param name the possibly null string to use as the class name.
* If null, <tt>Binding.getClassName()</tt> will return
* the actual class name of the object in the binding.
* The class name will be null if the object bound is null.
* @see #getClassName
* @see Binding#getClassName
*/
public void setClassName(String name) {
this.className = name;
}
/**
* Determines whether the name of this binding is
* relative to the target context (which is named by
* the first parameter of the <code>list()</code> method).
*
* @return true if the name of this binding is relative to the
* target context;
* false if the name of this binding is a URL string.
* @see #setRelative
* @see #getName
*/
public boolean isRelative() {
return isRel;
}
/**
* Sets whether the name of this binding is relative to the target
* context (which is named by the first parameter of the <code>list()</code>
* method).
*
* @param r If true, the name of binding is relative to the target context;
* if false, the name of binding is a URL string.
* @see #isRelative
* @see #setName
*/
public void setRelative(boolean r) {
isRel = r;
}
/**
* Retrieves the full name of this binding.
* The full name is the absolute name of this binding within
* its own namespace. See {@link Context#getNameInNamespace()}.
* <p>
*
* In naming systems for which the notion of full name does not
* apply to this binding an <tt>UnsupportedOperationException</tt>
* is thrown.
* This exception is also thrown when a service provider written before
* the introduction of the method is in use.
* <p>
* The string returned by this method is not a JNDI composite name and
* should not be passed directly to context methods.
*
* @return The full name of this binding.
* @throws UnsupportedOperationException if the notion of full name
* does not apply to this binding in the naming system.
* @since 1.5
* @see #setNameInNamespace
* @see #getName
*/
public String getNameInNamespace() {
if (fullName == null) {
throw new UnsupportedOperationException();
}
return fullName;
}
/**
* Sets the full name of this binding.
* This method must be called to set the full name whenever a
* <tt>NameClassPair</tt> is created and a full name is
* applicable to this binding.
* <p>
* Setting the full name to null, or not setting it at all, will
* cause <tt>getNameInNamespace()</tt> to throw an exception.
*
* @param fullName The full name to use.
* @since 1.5
* @see #getNameInNamespace
* @see #setName
*/
public void setNameInNamespace(String fullName) {
this.fullName = fullName;
}
/**
* Generates the string representation of this name/class pair.
* The string representation consists of the name and class name separated
* by a colon (':').
* The contents of this string is useful
* for debugging and is not meant to be interpreted programmatically.
*
* @return The string representation of this name/class pair.
*/
public String toString() {
return (isRelative() ? "" : "(not relative)") + getName() + ": " +
getClassName();
}
/**
* Use serialVersionUID from JNDI 1.1.1 for interoperability
*/
private static final long serialVersionUID = 5620776610160863339L;
}
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