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java.lang.Object javax.media.PackageManager
A 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.
Manager
Constructor Summary | |
PackageManager()
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Method Summary | |
static void |
commitContentPrefixList()
Make changes to the content prefix-list persistent. |
static void |
commitProtocolPrefixList()
Make changes to the protocol package-prefix list persistent. |
static java.util.Vector |
getContentPrefixList()
Get the current value of the content package-prefix list. |
static java.util.Vector |
getProtocolPrefixList()
Get the current value of the protocol package-prefix list. |
static void |
setContentPrefixList(java.util.Vector list)
Set the current value of the content package-prefix list. |
static void |
setProtocolPrefixList(java.util.Vector list)
Set the protocol package-prefix list. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public PackageManager()
Method Detail |
public static java.util.Vector getProtocolPrefixList()
public static void setProtocolPrefixList(java.util.Vector list)
list
- The new package-prefix list to use.public static void commitProtocolPrefixList()
This method throws a SecurityException
if the calling thread
does not have access to system properties.
public static java.util.Vector getContentPrefixList()
public static void setContentPrefixList(java.util.Vector list)
list
- The content package-prefix list to set.public static void commitContentPrefixList()
This method throws a SecurityException
if the calling thread
does not have access to system properties.
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