javax.management.loading
Interface MLetMBean

All Known Implementing Classes:
MLet
public interface MLetMBean

Exposes the remote management interface of the MLet MBean.

Method Summary
 void addURL(String url)
          Appends the specified URL to the list of URLs to search for classes and resources.
 void addURL(URL url)
          Appends the specified URL to the list of URLs to search for classes and resources.
 String getLibraryDirectory()
          Gets the current directory used by the library loader for storing native libraries before they are loaded into memory.
 Set getMBeansFromURL(String url)
          Loads a text file containing MLET tags that define the MBeans to be added to the agent.
 Set getMBeansFromURL(URL url)
          Loads a text file containing MLET tags that define the MBeans to be added to the agent.
 URL getResource(String name)
          Finds the resource with the given name.
 InputStream getResourceAsStream(String name)
          Returns an input stream for reading the specified resource.
 Enumeration getResources(String name)
          Finds all the resources with the given name.
 URL[] getURLs()
          Returns the search path of URLs for loading classes and resources.
 void setLibraryDirectory(String libdir)
          Sets the directory used by the library loader for storing native libraries before they are loaded into memory.
 

Method Detail

getMBeansFromURL

public Set getMBeansFromURL(String url)
                     throws ServiceNotFoundException
Loads a text file containing MLET tags that define the MBeans to be added to the agent. The location of the text file is specified by a URL. The MBeans specified in the MLET file will be instantiated and registered by the MBeanServer.

Parameters:
url - The URL of the text file to be loaded as String object.
Returns:
A set containing one entry per MLET tag in the m-let text file loaded. Each entry specifies either the ObjectInstance for the created MBean, or a throwable object (that is, an error or an exception) if the MBean could not be created.
Throws:
ServiceNotFoundException - One of the following errors has occurred: The m-let text file does not contain an MLET tag, the m-let text file is not found, a mandatory attribute of the MLET tag is not specified, the value of url is malformed.

getMBeansFromURL

public Set getMBeansFromURL(URL url)
                     throws ServiceNotFoundException
Loads a text file containing MLET tags that define the MBeans to be added to the agent. The location of the text file is specified by a URL. The MBeans specified in the MLET file will be instantiated and registered by the MBeanServer.

Parameters:
url - The URL of the text file to be loaded as URL object.
Returns:
A set containing one entry per MLET tag in the m-let text file loaded. Each entry specifies either the ObjectInstance for the created MBean, or a throwable object (that is, an error or an exception) if the MBean could not be created.
Throws:
ServiceNotFoundException - One of the following errors has occurred: The m-let text file does not contain an MLET tag, the m-let text file is not found, a mandatory attribute of the MLET tag is not specified, the value of url is null.

addURL

public void addURL(URL url)
Appends the specified URL to the list of URLs to search for classes and resources.

Parameters:
url - the URL to add.

addURL

public void addURL(String url)
            throws ServiceNotFoundException
Appends the specified URL to the list of URLs to search for classes and resources.

Parameters:
url - the URL to add.
Throws:
ServiceNotFoundException - The specified URL is malformed.

getURLs

public URL[] getURLs()
Returns the search path of URLs for loading classes and resources. This includes the original list of URLs specified to the constructor, along with any URLs subsequently appended by the addURL() method.

Returns:
the list of URLs.

getResource

public URL getResource(String name)
Finds the resource with the given name. A resource is some data (images, audio, text, etc) that can be accessed by class code in a way that is independent of the location of the code. The name of a resource is a "/"-separated path name that identifies the resource.

Parameters:
name - The resource name
Returns:
An URL for reading the resource, or null if the resource could not be found or the caller doesn't have adequate privileges to get the resource.

getResourceAsStream

public InputStream getResourceAsStream(String name)
Returns an input stream for reading the specified resource. The search order is described in the documentation for getResource(String).

Parameters:
name - The resource name
Returns:
An input stream for reading the resource, or null if the resource could not be found

getResources

public Enumeration getResources(String name)
                         throws IOException
Finds all the resources with the given name. A resource is some data (images, audio, text, etc) that can be accessed by class code in a way that is independent of the location of the code. The name of a resource is a "/"-separated path name that identifies the resource.

Parameters:
name - The resource name.
Returns:
An enumeration of URL to the resource. If no resources could be found, the enumeration will be empty. Resources that cannot be accessed will not be in the enumeration.
Throws:
IOException - if an I/O exception occurs when searching for resources.

getLibraryDirectory

public String getLibraryDirectory()
Gets the current directory used by the library loader for storing native libraries before they are loaded into memory.

Returns:
The current directory used by the library loader.
See Also:
setLibraryDirectory(java.lang.String)

setLibraryDirectory

public void setLibraryDirectory(String libdir)
Sets the directory used by the library loader for storing native libraries before they are loaded into memory.

Parameters:
libdir - The directory used by the library loader.
See Also:
getLibraryDirectory()
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Copyright 2003 Sun Microsystems, Inc. All rights reserved.