org.opends.server.core
Class DefaultCompressedSchema

java.lang.Object
  org.opends.server.api.CompressedSchema
      org.opends.server.core.DefaultCompressedSchema

public final class DefaultCompressedSchema
extends CompressedSchema

This class provides a default implementation of a compressed schema manager that will store the schema definitions in a binary file (config/schematokens.dat).

Constructor Summary

DefaultCompressedSchema()
Creates a new instance of this compressed schema manager.

Method Summary

Attribute	decodeAttribute(byte[] encodedEntry, int startPos, int length) Decodes the contents of the provided array as an attribute.
java.util.Map<ObjectClass,java.lang.String>	decodeObjectClasses(byte[] encodedObjectClasses) Decodes an object class set from the provided byte array.
byte[]	encodeAttribute(Attribute attribute) Encodes the information in the provided attribute to a byte array.
byte[]	encodeObjectClasses(java.util.Map<ObjectClass,java.lang.String> objectClasses) Encodes the provided set of object classes to a byte array.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultCompressedSchema

public DefaultCompressedSchema()

Creates a new instance of this compressed schema manager.

Method Detail

encodeObjectClasses

public byte[] encodeObjectClasses(java.util.Map<ObjectClass,java.lang.String> objectClasses)
                           throws DirectoryException

Encodes the provided set of object classes to a byte array. If the same set had been previously encoded, then the cached value will be used. Otherwise, a new value will be created.

Specified by:

encodeObjectClasses in class CompressedSchema

Parameters:

objectClasses - The set of object classes for which to retrieve the corresponding byte array token.

Returns:

A byte array containing the identifier assigned to the object class set.

Throws:

DirectoryException - If a problem occurs while attempting to determine the appropriate identifier.

decodeObjectClasses

public java.util.Map<ObjectClass,java.lang.String> decodeObjectClasses(byte[] encodedObjectClasses)
                                                                throws DirectoryException

Decodes an object class set from the provided byte array.

Specified by:

decodeObjectClasses in class CompressedSchema

Parameters:

encodedObjectClasses - The byte array containing the object class set identifier.

Returns:

The decoded object class set.

Throws:

DirectoryException - If the provided byte array cannot be decoded as an object class set.

encodeAttribute

public byte[] encodeAttribute(Attribute attribute)
                       throws DirectoryException

Encodes the information in the provided attribute to a byte array.

Specified by:

encodeAttribute in class CompressedSchema

Parameters:

attribute - The attribute to be encoded.

Returns:

An encoded representation of the provided attribute.

Throws:

DirectoryException - If a problem occurs while attempting to determine the appropriate identifier.

decodeAttribute

public Attribute decodeAttribute(byte[] encodedEntry,
                                 int startPos,
                                 int length)
                          throws DirectoryException

Decodes the contents of the provided array as an attribute.

Specified by:

decodeAttribute in class CompressedSchema

Parameters:

encodedEntry - The byte array containing the encoded entry.

startPos - The position within the array of the first byte for the attribute to decode.

length - The number of bytes contained in the encoded attribute.

Returns:

The decoded attribute.

Throws:

DirectoryException - If the attribute could not be decoded properly for some reason.