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  * Copyright (c) OSGi Alliance (2010, 2013). All Rights Reserved.
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  * you may not use this file except in compliance with the License.
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 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.osgi.service.dmt.spi;

This interface can be optionally implemented by a DataPlugin or ExecPlugin in order to get information about its absolute mount points in the overall DMT.

This is especially interesting, if the plugin is mapped to the tree as part of a list. In such a case the id for this particular data plugin is determined by the DmtAdmin after the registration of the plugin and therefore unknown to the plugin in advance.

This is not a service interface, the Data or Exec Plugin does not also have to register this interface as a service, the Dmt Admin should use an instanceof to detect that a Plugin is also a Mount Plugin.

$Id: 3b2e26b8c8ae474f844bf92bd1213682871ade8e $
public interface MountPlugin {
Provides the MountPoint describing the path where the plugin is mapped in the overall DMT. The given mountPoint is withdrawn with the mountPointRemoved(org.osgi.service.dmt.spi.MountPoint) method. Corresponding mount points must compare equal and have an appropriate hash code.

mountPoint the newly mapped mount point
	void mountPointAdded(MountPoint mountPoint);

Informs the plugin that the provided MountPoint objects have been removed from the mapping. The given mountPoint is withdrawn method. Mount points must compare equal and have an appropriate hash code with the given Mount Point in mountPointAdded(org.osgi.service.dmt.spi.MountPoint).

NOTE: attempts to invoke the postEvent method on the provided MountPoint must be ignored.

mountPoint The unmapped mount point array of MountPoint objects that have been removed from the mapping
	void mountPointRemoved(MountPoint mountPoint);
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