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public interface ClassCatalog
A catalog of class description information for use during object serialization.
A catalog is used to store class descriptions separately from serialized
 objects, to avoid redundantly stored information with each object.
 When serialized objects are stored in a database, a StoredClassCatalog should be used.
This information is used for serialization of class descriptors or
 java.io.ObjectStreamClass objects, each of which represents a unique class
 format.  For each unique format, a unique class ID is assigned by the
 catalog.  The class ID can then be used in the serialization stream in place
 of the full class information.  When used with SerialInput and
 SerialOutput or any of the serial bindings, the use of the catalog
 is transparent to the application.
| Method Summary | |
|---|---|
|  void | close()Close a catalog database and release any cached resources. | 
|  ObjectStreamClass | getClassFormat(byte[] classID)Return the ObjectStreamClass for the given class ID. | 
|  byte[] | getClassID(ObjectStreamClass classDesc)Return the class ID for the current version of the given class description. | 
|  ClassLoader | getClassLoader()Returns the ClassLoader to be used by bindings that use this catalog. | 
| Method Detail | 
|---|
void close()
           throws DatabaseException
DatabaseException
byte[] getClassID(ObjectStreamClass classDesc)
                  throws DatabaseException,
                         ClassNotFoundException
getClassFormat(byte[]).
 This function causes a new class ID to be assigned if the class
 description has changed.
classDesc - The class description for which to return the
 class ID.
DatabaseException
ClassNotFoundException
ObjectStreamClass getClassFormat(byte[] classID)
                                 throws DatabaseException,
                                        ClassNotFoundException
classID - The class ID for which to return the class format.
DatabaseException
ClassNotFoundExceptionClassLoader getClassLoader()
SerialBinding to load classes whose
 description is stored in the catalog.
 In BDB JE, the implementation of this method in StoredClassCatalog returns the ClassLoader property of the catalog
 database Environment.  This ensures that the Environment's ClassLoader
 property is used for loading all user-supplied classes.
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