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package javax.naming.ldap;
import javax.naming.ReferralException;
import javax.naming.Context;
import javax.naming.NamingException;
import java.util.Hashtable;
This abstract class is used to represent an LDAP referral exception.
It extends the base ReferralException by providing a
getReferralContext() method that accepts request controls.
LdapReferralException is an abstract class. Concrete implementations of it
determine its synchronization and serialization properties.
A Control[] array passed as a parameter to
the getReferralContext() method is owned by the caller.
The service provider will not modify the array or keep a reference to it,
although it may keep references to the individual Control objects
in the array.
Author: Rosanna Lee, Scott Seligman, Vincent Ryan Since: 1.3
/**
* This abstract class is used to represent an LDAP referral exception.
* It extends the base <tt>ReferralException</tt> by providing a
* <tt>getReferralContext()</tt> method that accepts request controls.
* LdapReferralException is an abstract class. Concrete implementations of it
* determine its synchronization and serialization properties.
*<p>
* A <tt>Control[]</tt> array passed as a parameter to
* the <tt>getReferralContext()</tt> method is owned by the caller.
* The service provider will not modify the array or keep a reference to it,
* although it may keep references to the individual <tt>Control</tt> objects
* in the array.
*
* @author Rosanna Lee
* @author Scott Seligman
* @author Vincent Ryan
* @since 1.3
*/
public abstract class LdapReferralException extends ReferralException {
Constructs a new instance of LdapReferralException using the
explanation supplied. All other fields are set to null.
Params: - explanation – Additional detail about this exception. Can be null.
See Also:
/**
* Constructs a new instance of LdapReferralException using the
* explanation supplied. All other fields are set to null.
*
* @param explanation Additional detail about this exception. Can be null.
* @see java.lang.Throwable#getMessage
*/
protected LdapReferralException(String explanation) {
super(explanation);
}
Constructs a new instance of LdapReferralException.
All fields are set to null.
/**
* Constructs a new instance of LdapReferralException.
* All fields are set to null.
*/
protected LdapReferralException() {
super();
}
Retrieves the context at which to continue the method using the
context's environment and no controls.
The referral context is created using the environment properties of
the context that threw the ReferralException and no controls.
This method is equivalent to
getReferralContext(ctx.getEnvironment(), null);
where ctx is the context that threw the ReferralException.
It is overridden in this class for documentation purposes only.
See ReferralException for how to use this method.
Throws: - NamingException – If a naming exception was encountered.
Call either retryReferral() or skipReferral()
to continue processing referrals.
Returns: The non-null context at which to continue the method.
/**
* Retrieves the context at which to continue the method using the
* context's environment and no controls.
* The referral context is created using the environment properties of
* the context that threw the <tt>ReferralException</tt> and no controls.
*<p>
* This method is equivalent to
*<blockquote><pre>
* getReferralContext(ctx.getEnvironment(), null);
*</pre></blockquote>
* where <tt>ctx</tt> is the context that threw the <tt>ReferralException.</tt>
*<p>
* It is overridden in this class for documentation purposes only.
* See <tt>ReferralException</tt> for how to use this method.
*
* @return The non-null context at which to continue the method.
* @exception NamingException If a naming exception was encountered.
* Call either <tt>retryReferral()</tt> or <tt>skipReferral()</tt>
* to continue processing referrals.
*/
public abstract Context getReferralContext() throws NamingException;
Retrieves the context at which to continue the method using
environment properties and no controls.
The referral context is created using env as its environment
properties and no controls.
This method is equivalent to
getReferralContext(env, null);
It is overridden in this class for documentation purposes only.
See ReferralException for how to use this method.
Params: - env – The possibly null environment to use when retrieving the
referral context. If null, no environment properties will be used.
Throws: - NamingException – If a naming exception was encountered.
Call either retryReferral() or skipReferral()
to continue processing referrals.
Returns: The non-null context at which to continue the method.
/**
* Retrieves the context at which to continue the method using
* environment properties and no controls.
* The referral context is created using <tt>env</tt> as its environment
* properties and no controls.
*<p>
* This method is equivalent to
*<blockquote><pre>
* getReferralContext(env, null);
*</pre></blockquote>
*<p>
* It is overridden in this class for documentation purposes only.
* See <tt>ReferralException</tt> for how to use this method.
*
* @param env The possibly null environment to use when retrieving the
* referral context. If null, no environment properties will be used.
*
* @return The non-null context at which to continue the method.
* @exception NamingException If a naming exception was encountered.
* Call either <tt>retryReferral()</tt> or <tt>skipReferral()</tt>
* to continue processing referrals.
*/
public abstract Context
getReferralContext(Hashtable<?,?> env)
throws NamingException;
Retrieves the context at which to continue the method using
request controls and environment properties.
Regardless of whether a referral is encountered directly during a
context operation, or indirectly, for example, during a search
enumeration, the referral exception should provide a context
at which to continue the operation.
To continue the operation, the client program should re-invoke
the method using the same arguments as the original invocation.
reqCtls is used when creating the connection to the referred
server. These controls will be used as the connection request controls for
the context and context instances
derived from the context.
reqCtls will also be the context's request controls for
subsequent context operations. See the LdapContext class
description for details.
This method should be used instead of the other two overloaded forms
when the caller needs to supply request controls for creating
the referral context. It might need to do this, for example, when
it needs to supply special controls relating to authentication.
Service provider implementors should read the "Service Provider" section
in the LdapContext class description for implementation details.
Params: - reqCtls – The possibly null request controls to use for the new context.
If null or the empty array means use no request controls.
- env – The possibly null environment properties to use when
for the new context. If null, the context is initialized with no environment
properties.
Throws: - NamingException – If a naming exception was encountered.
Call either retryReferral() or skipReferral()
to continue processing referrals.
Returns: The non-null context at which to continue the method.
/**
* Retrieves the context at which to continue the method using
* request controls and environment properties.
* Regardless of whether a referral is encountered directly during a
* context operation, or indirectly, for example, during a search
* enumeration, the referral exception should provide a context
* at which to continue the operation.
* To continue the operation, the client program should re-invoke
* the method using the same arguments as the original invocation.
*<p>
* <tt>reqCtls</tt> is used when creating the connection to the referred
* server. These controls will be used as the connection request controls for
* the context and context instances
* derived from the context.
* <tt>reqCtls</tt> will also be the context's request controls for
* subsequent context operations. See the <tt>LdapContext</tt> class
* description for details.
*<p>
* This method should be used instead of the other two overloaded forms
* when the caller needs to supply request controls for creating
* the referral context. It might need to do this, for example, when
* it needs to supply special controls relating to authentication.
*<p>
* Service provider implementors should read the "Service Provider" section
* in the <tt>LdapContext</tt> class description for implementation details.
*
* @param reqCtls The possibly null request controls to use for the new context.
* If null or the empty array means use no request controls.
* @param env The possibly null environment properties to use when
* for the new context. If null, the context is initialized with no environment
* properties.
* @return The non-null context at which to continue the method.
* @exception NamingException If a naming exception was encountered.
* Call either <tt>retryReferral()</tt> or <tt>skipReferral()</tt>
* to continue processing referrals.
*/
public abstract Context
getReferralContext(Hashtable<?,?> env,
Control[] reqCtls)
throws NamingException;
private static final long serialVersionUID = -1668992791764950804L;
}