org.apache.directory.server.core.partition.impl.btree.mavibot

Class MavibotEntrySerializer

java.lang.Object

org.apache.directory.mavibot.btree.serializer.AbstractElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

org.apache.directory.server.core.partition.impl.btree.mavibot.MavibotEntrySerializer

All Implemented Interfaces:

org.apache.directory.mavibot.btree.serializer.ElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

public class MavibotEntrySerializer
extends org.apache.directory.mavibot.btree.serializer.AbstractElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

Serialize and deserialize a ServerEntry. There is a big difference with the standard Entry serialization : we don't serialize the entry's Dn, we just serialize it's Rdn.

This class must *not* be used outside of the server.

Author:

Apache Directory Project

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
org.apache.directory.api.ldap.model.entry.Entry	deserialize(org.apache.directory.mavibot.btree.serializer.BufferHandler bufferHandler)
org.apache.directory.api.ldap.model.entry.Entry	deserialize(ByteBuffer buffer) Deserialize a Entry.
org.apache.directory.api.ldap.model.entry.Entry	fromBytes(byte[] buffer)
org.apache.directory.api.ldap.model.entry.Entry	fromBytes(byte[] buffer, int pos)
Comparator<org.apache.directory.api.ldap.model.entry.Entry>	getComparator()
Class<?>	getType()
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.
static void	setSchemaManager(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager)

Methods inherited from class org.apache.directory.mavibot.btree.serializer.AbstractElementSerializer

compare

Methods inherited from class java.lang.Object

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

Constructor Detail

MavibotEntrySerializer

public MavibotEntrySerializer()

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

Method Detail

getComparator

public Comparator<org.apache.directory.api.ldap.model.entry.Entry> getComparator()

Specified by:

getComparator in interface org.apache.directory.mavibot.btree.serializer.ElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

Overrides:

getComparator in class org.apache.directory.mavibot.btree.serializer.AbstractElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

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 :

• [a byte] : if the Dn is empty 0 will be written else 1
• [Rdn] : 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

deserialize

public org.apache.directory.api.ldap.model.entry.Entry deserialize(ByteBuffer buffer)
                                                            throws IOException

Deserialize a Entry.

Parameters:

buffer - The buffer containing the serialized entry

Returns:

An instance of a Entry object

Throws:

IOException - if we can't deserialize the Entry

deserialize

public org.apache.directory.api.ldap.model.entry.Entry deserialize(org.apache.directory.mavibot.btree.serializer.BufferHandler bufferHandler)
                                                            throws IOException

Throws:

IOException

setSchemaManager

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

fromBytes

public org.apache.directory.api.ldap.model.entry.Entry fromBytes(byte[] buffer)
                                                          throws IOException

Throws:

IOException

fromBytes

public org.apache.directory.api.ldap.model.entry.Entry fromBytes(byte[] buffer,
                                                                 int pos)
                                                          throws IOException

Throws:

IOException

getType

public Class<?> getType()

Specified by:

getType in interface org.apache.directory.mavibot.btree.serializer.ElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>

Overrides:

getType in class org.apache.directory.mavibot.btree.serializer.AbstractElementSerializer<org.apache.directory.api.ldap.model.entry.Entry>