/* * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package javax.naming; import java.util.Hashtable; /** * This exception is thrown to indicate that the operation reached * a point in the name where the operation cannot proceed any further. * When performing an operation on a composite name, a naming service * provider may reach a part of the name that does not belong to its * namespace. At that point, it can construct a * CannotProceedException and then invoke methods provided by * javax.naming.spi.NamingManager (such as getContinuationContext()) * to locate another provider to continue the operation. If this is * not possible, this exception is raised to the caller of the * context operation. *
* If the program wants to handle this exception in particular, it * should catch CannotProceedException explicitly before attempting to * catch NamingException. *
* A CannotProceedException instance is not synchronized against concurrent * multithreaded access. Multiple threads trying to access and modify * CannotProceedException should lock the object. * * @author Rosanna Lee * @author Scott Seligman * @since 1.3 */ /* * The serialized form of a CannotProceedException object consists of * the serialized fields of its NamingException superclass, the remaining new * name (a Name object), the environment (a Hashtable), the altName field * (a Name object), and the serialized form of the altNameCtx field. */ public class CannotProceedException extends NamingException { /** * Contains the remaining unresolved part of the second * "name" argument to Context.rename(). * This information necessary for * continuing the Context.rename() operation. *
* This field is initialized to null. * It should not be manipulated directly: it should * be accessed and updated using getRemainingName() and setRemainingName(). * @serial * * @see #getRemainingNewName * @see #setRemainingNewName */ protected Name remainingNewName = null; /** * Contains the environment * relevant for the Context or DirContext method that cannot proceed. *
* This field is initialized to null.
* It should not be manipulated directly: it should be accessed
* and updated using getEnvironment() and setEnvironment().
* @serial
*
* @see #getEnvironment
* @see #setEnvironment
*/
protected Hashtable,?> environment = null;
/**
* Contains the name of the resolved object, relative
* to the context altNameCtx
. It is a composite name.
* If null, then no name is specified.
* See the javax.naming.spi.ObjectFactory.getObjectInstance
* method for details on how this is used.
*
* This field is initialized to null.
* It should not be manipulated directly: it should
* be accessed and updated using getAltName() and setAltName().
* @serial
*
* @see #getAltName
* @see #setAltName
* @see #altNameCtx
* @see javax.naming.spi.ObjectFactory#getObjectInstance
*/
protected Name altName = null;
/**
* Contains the context relative to which
* altName
is specified. If null, then the default initial
* context is implied.
* See the javax.naming.spi.ObjectFactory.getObjectInstance
* method for details on how this is used.
*
* This field is initialized to null.
* It should not be manipulated directly: it should
* be accessed and updated using getAltNameCtx() and setAltNameCtx().
* @serial
*
* @see #getAltNameCtx
* @see #setAltNameCtx
* @see #altName
* @see javax.naming.spi.ObjectFactory#getObjectInstance
*/
protected Context altNameCtx = null;
/**
* Constructs a new instance of CannotProceedException using an
* explanation. All unspecified fields default to null.
*
* @param explanation A possibly null string containing additional
* detail about this exception.
* If null, this exception has no detail message.
* @see java.lang.Throwable#getMessage
*/
public CannotProceedException(String explanation) {
super(explanation);
}
/**
* Constructs a new instance of CannotProceedException.
* All fields default to null.
*/
public CannotProceedException() {
super();
}
/**
* Retrieves the environment that was in effect when this exception
* was created.
* @return Possibly null environment property set.
* null means no environment was recorded for this exception.
* @see #setEnvironment
*/
public Hashtable,?> getEnvironment() {
return environment;
}
/**
* Sets the environment that will be returned when getEnvironment()
* is called.
* @param environment A possibly null environment property set.
* null means no environment is being recorded for
* this exception.
* @see #getEnvironment
*/
public void setEnvironment(Hashtable,?> environment) {
this.environment = environment; // %%% clone it??
}
/**
* Retrieves the "remaining new name" field of this exception, which is
* used when this exception is thrown during a rename() operation.
*
* @return The possibly null part of the new name that has not been resolved.
* It is a composite name. It can be null, which means
* the remaining new name field has not been set.
*
* @see #setRemainingNewName
*/
public Name getRemainingNewName() {
return remainingNewName;
}
/**
* Sets the "remaining new name" field of this exception.
* This is the value returned by getRemainingNewName()
.
*
* newName is a composite name. If the intent is to set * this field using a compound name or string, you must * "stringify" the compound name, and create a composite * name with a single component using the string. You can then * invoke this method using the resulting composite name. *
* A copy of newName
is made and stored.
* Subsequent changes to name
does not
* affect the copy in this NamingException and vice versa.
*
* @param newName The possibly null name to set the "remaining new name" to.
* If null, it sets the remaining name field to null.
*
* @see #getRemainingNewName
*/
public void setRemainingNewName(Name newName) {
if (newName != null)
this.remainingNewName = (Name)(newName.clone());
else
this.remainingNewName = null;
}
/**
* Retrieves the altName
field of this exception.
* This is the name of the resolved object, relative to the context
* altNameCtx
. It will be used during a subsequent call to the
* javax.naming.spi.ObjectFactory.getObjectInstance
method.
*
* @return The name of the resolved object, relative to
* altNameCtx
.
* It is a composite name. If null, then no name is specified.
*
* @see #setAltName
* @see #getAltNameCtx
* @see javax.naming.spi.ObjectFactory#getObjectInstance
*/
public Name getAltName() {
return altName;
}
/**
* Sets the altName
field of this exception.
*
* @param altName The name of the resolved object, relative to
* altNameCtx
.
* It is a composite name.
* If null, then no name is specified.
*
* @see #getAltName
* @see #setAltNameCtx
*/
public void setAltName(Name altName) {
this.altName = altName;
}
/**
* Retrieves the altNameCtx
field of this exception.
* This is the context relative to which altName
is named.
* It will be used during a subsequent call to the
* javax.naming.spi.ObjectFactory.getObjectInstance
method.
*
* @return The context relative to which altName
is named.
* If null, then the default initial context is implied.
*
* @see #setAltNameCtx
* @see #getAltName
* @see javax.naming.spi.ObjectFactory#getObjectInstance
*/
public Context getAltNameCtx() {
return altNameCtx;
}
/**
* Sets the altNameCtx
field of this exception.
*
* @param altNameCtx
* The context relative to which altName
* is named. If null, then the default initial context
* is implied.
*
* @see #getAltNameCtx
* @see #setAltName
*/
public void setAltNameCtx(Context altNameCtx) {
this.altNameCtx = altNameCtx;
}
/**
* Use serialVersionUID from JNDI 1.1.1 for interoperability
*/
private static final long serialVersionUID = 1219724816191576813L;
}