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CannotProceedException (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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javax.naming
Class CannotProceedException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          javax.naming.NamingException
              javax.naming.CannotProceedException

All Implemented Interfaces:

Serializable

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public class CannotProceedException
extends NamingException

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.

Since:

1.3

See Also:

Serialized Form

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Field Summary
protected  Name	altName           Contains the name of the resolved object, relative to the context altNameCtx.
protected  Context	altNameCtx           Contains the context relative to which altName is specified.
protected  Hashtable<?,?>	environment           Contains the environment relevant for the Context or DirContext method that cannot proceed.
protected  Name	remainingNewName           Contains the remaining unresolved part of the second "name" argument to Context.rename().

 

Fields inherited from class javax.naming.NamingException
remainingName, resolvedName, resolvedObj, rootException

 

Constructor Summary
CannotProceedException()           Constructs a new instance of CannotProceedException.
CannotProceedException(String explanation)           Constructs a new instance of CannotProceedException using an explanation.

 

Method Summary
Name	getAltName()           Retrieves the altName field of this exception.
Context	getAltNameCtx()           Retrieves the altNameCtx field of this exception.
Hashtable<?,?>	getEnvironment()           Retrieves the environment that was in effect when this exception was created.
Name	getRemainingNewName()           Retrieves the "remaining new name" field of this exception, which is used when this exception is thrown during a rename() operation.
void	setAltName(Name altName)           Sets the altName field of this exception.
void	setAltNameCtx(Context altNameCtx)           Sets the altNameCtx field of this exception.
void	setEnvironment(Hashtable<?,?> environment)           Sets the environment that will be returned when getEnvironment() is called.
void	setRemainingNewName(Name newName)           Sets the "remaining new name" field of this exception.

 

Methods inherited from class javax.naming.NamingException
appendRemainingComponent, appendRemainingName, getCause, getExplanation, getRemainingName, getResolvedName, getResolvedObj, getRootCause, initCause, setRemainingName, setResolvedName, setResolvedObj, setRootCause, toString, toString

 

Methods inherited from class java.lang.Throwable
fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, printStackTrace, printStackTrace, printStackTrace, setStackTrace

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

remainingNewName

protected Name remainingNewName

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().

See Also:

getRemainingNewName(), setRemainingNewName(javax.naming.Name)

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environment

protected Hashtable<?,?> environment

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().

See Also:

getEnvironment(), setEnvironment(java.util.Hashtable)

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altName

protected Name altName

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().

See Also:

getAltName(), setAltName(javax.naming.Name), altNameCtx, ObjectFactory.getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)

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altNameCtx

protected Context altNameCtx

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().

See Also:

getAltNameCtx(), setAltNameCtx(javax.naming.Context), altName, ObjectFactory.getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)

Constructor Detail

CannotProceedException

public CannotProceedException(String explanation)

Constructs a new instance of CannotProceedException using an explanation. All unspecified fields default to null.

Parameters:

explanation - A possibly null string containing additional detail about this exception. If null, this exception has no detail message.

See Also:

Throwable.getMessage()

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CannotProceedException

public CannotProceedException()

Constructs a new instance of CannotProceedException. All fields default to null.

Method Detail

getEnvironment

public Hashtable<?,?> getEnvironment()

Retrieves the environment that was in effect when this exception was created.

Returns:

Possibly null environment property set. null means no environment was recorded for this exception.

See Also:

setEnvironment(java.util.Hashtable)

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setEnvironment

public void setEnvironment(Hashtable<?,?> environment)

Sets the environment that will be returned when getEnvironment() is called.

Parameters:

environment - A possibly null environment property set. null means no environment is being recorded for this exception.

See Also:

getEnvironment()

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getRemainingNewName

public Name getRemainingNewName()

Retrieves the "remaining new name" field of this exception, which is used when this exception is thrown during a rename() operation.

Returns:

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 Also:

setRemainingNewName(javax.naming.Name)

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setRemainingNewName

public void setRemainingNewName(Name newName)

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.

Parameters:

newName - The possibly null name to set the "remaining new name" to. If null, it sets the remaining name field to null.

See Also:

getRemainingNewName()

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getAltName

public Name getAltName()

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.

Returns:

The name of the resolved object, relative to altNameCtx. It is a composite name. If null, then no name is specified.

See Also:

setAltName(javax.naming.Name), getAltNameCtx(), ObjectFactory.getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)

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setAltName

public void setAltName(Name altName)

Sets the altName field of this exception.

Parameters:

altName - The name of the resolved object, relative to altNameCtx. It is a composite name. If null, then no name is specified.

See Also:

getAltName(), setAltNameCtx(javax.naming.Context)

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getAltNameCtx

public Context getAltNameCtx()

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.

Returns:

The context relative to which altName is named. If null, then the default initial context is implied.

See Also:

setAltNameCtx(javax.naming.Context), getAltName(), ObjectFactory.getObjectInstance(java.lang.Object, javax.naming.Name, javax.naming.Context, java.util.Hashtable)

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setAltNameCtx

public void setAltNameCtx(Context altNameCtx)

Sets the altNameCtx field of this exception.

Parameters:

altNameCtx - The context relative to which altName is named. If null, then the default initial context is implied.

See Also:

getAltNameCtx(), setAltName(javax.naming.Name)

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