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java.lang.Object | +----javax.media.PackageManager
PackageManager
maintains a persistent store of
package-prefix lists. A package prefix specifies the
prefix for a complete class name. A factory uses
a package-prefix list to find a class that
might belong to any of the packages that are referenced
in the prefix list.
The Manager
uses package-prefix lists
to find protocol handlers and content handlers for time-based
media.
The current version of a package-prefix list is obtained with
the get<package-prefix>List
method. This method returns the prefix
list in use; any changes to the list take effect immediately.
Unless it is made persistent with
commit<package-prefix>List
, a package-prefix list is only valid
while the Manager
is referenced.
The commit<package-prefix>List
method ensures that any changes made
to a package-prefix list are still visible the next time that
the Manager
is referenced.
public PackageManager()
public static Vector getProtocolPrefixList()
public static void setProtocolPrefixList(Vector list)
public static void commitProtocolPrefixList()
This method throws a SecurityException
if the calling thread
does not have access to system properties.
public static Vector getContentPrefixList()
public static void setContentPrefixList(Vector list)
public static void commitContentPrefixList()
This method throws a SecurityException
if the calling thread
does not have access to system properties.
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