org.apache.directory.server.core.shared

Class SortedEntrySerializer

java.lang.Object

org.apache.directory.server.core.shared.SortedEntrySerializer

All Implemented Interfaces:

Serializable, jdbm.helper.Serializer

public class SortedEntrySerializer
extends Object
implements jdbm.helper.Serializer

Serialize and deserialize a ServerEntry. WARNING: This serializer stores the complete DN as well (unlike other entry serializers which store only RDN). This class must *not* be used anywhere else other than for storing sorted entries in server. Note: this was initially used by Mavibot tree, but changed to use in JDBM later. This will again be ported to Mavibot as soon as it gets ready.

Author:

Apache Directory Project

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SortedEntrySerializer() Creates a new instance of ServerEntrySerializer.

Method Summary

Modifier and Type	Method and Description
Object	deserialize(byte[] serialized)
byte[]	serialize(org.apache.directory.api.ldap.model.entry.Entry entry) This is the place where we serialize entries, and all theirs elements.
byte[]	serialize(Object obj)
static void	setSchemaManager(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager)

Methods inherited from class java.lang.Object

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

Constructor Detail

SortedEntrySerializer

public SortedEntrySerializer()

Creates a new instance of ServerEntrySerializer. The schemaManager MUST be set explicitly set using the static setSchemaManager(SchemaManager)

Method Detail

serialize

public byte[] serialize(Object obj)
                 throws IOException

Specified by:

serialize in interface jdbm.helper.Serializer

Throws:

IOException

deserialize

public Object deserialize(byte[] serialized)
                   throws IOException

Specified by:

deserialize in interface jdbm.helper.Serializer

Throws:

IOException

serialize

public byte[] serialize(org.apache.directory.api.ldap.model.entry.Entry entry)

This is the place where we serialize entries, and all theirs elements. the reason why we don't call the underlying methods (ServerAttribute.write(), Value.write()) is that we need access to the registries to read back the values.

The structure used to store the entry is the following :

• [Dn] : The entry's Rdn.
• [numberAttr] : the bumber of attributes. Can be 0
• For each Attribute :
  • [attribute's oid] : The attribute's OID to get back the attributeType on deserialization
  • [Attribute] The attribute

setSchemaManager

public static void setSchemaManager(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager)