org.apache.directory.server.core.partition.impl.avl
Class AvlPartition

java.lang.Object
  org.apache.directory.server.core.api.partition.AbstractPartition
      org.apache.directory.server.core.partition.impl.btree.AbstractBTreePartition<Long>
          org.apache.directory.server.core.partition.impl.avl.AvlPartition

All Implemented Interfaces:

org.apache.directory.server.core.api.partition.Partition, Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

public class AvlPartition
extends AbstractBTreePartition<Long>

An XDBM Partition backed by in memory AVL Trees.

Author:

Apache Directory Project

Field Summary

Fields inherited from class org.apache.directory.server.core.partition.impl.btree.AbstractBTreePartition

ALIASED_OBJECT_NAME_AT, aliasIdx, cacheSize, DEFAULT_CACHE_SIZE, ENTRY_CSN_AT, ENTRY_UUID_AT, entryCsnIdx, entryUuidIdx, isSyncOnWrite, master, OBJECT_CLASS_AT, objectClassIdx, oneAliasIdx, oneLevelIdx, optimizer, optimizerEnabled, partitionPath, presenceIdx, rdnIdx, searchEngine, subAliasIdx, subLevelIdx, systemIndices, userIndices

Fields inherited from class org.apache.directory.server.core.api.partition.AbstractPartition

id, initialized, schemaManager, suffixDn

Fields inherited from interface org.apache.directory.server.xdbm.Store

SYS_INDEX_OID_ARRAY, SYS_INDEX_OIDS

Constructor Summary

AvlPartition(org.apache.directory.shared.ldap.model.schema.SchemaManager schemaManager)
Creates a store based on AVL Trees.

Method Summary

protected Index<?,org.apache.directory.shared.ldap.model.entry.Entry,Long>	convertAndInit(Index<?,org.apache.directory.shared.ldap.model.entry.Entry,Long> index) Convert and initialize an index for a specific store implementation.
protected void	doInit()
int	getCacheSize() Always returns 0 (zero), cause this is a in-memory store
Long	getDefaultId() Gets the default ID.
URI	getPartitionPath() Gets the path in which this Partition stores data.
Long	getRootId() Gets the root ID of this store implementation.
boolean	isSyncOnWrite() always returns false, cause this is a in-memory store
void	sync()

Methods inherited from class org.apache.directory.server.core.partition.impl.btree.AbstractBTreePartition

add, addAliasIndices, addIndex, addIndexedAttributes, buildEntryDn, count, delete, delete, doDestroy, dropAliasIndices, dropAliasIndices, dropMovedAliasIndices, dumpIndex, getAliasIndex, getChildCount, getEntryCsnIndex, getEntryDn, getEntryId, getEntryUuidIndex, getIndex, getIndexedAttributes, getObjectClassIndex, getOneAliasIndex, getOneLevelIndex, getParentId, getPresenceIndex, getRdnIndex, getSearchEngine, getSubAliasIndex, getSubLevelIndex, getSuffixId, getSystemIndex, getSystemIndices, getUserIndex, getUserIndices, hasEntry, hasIndexOn, hasSystemIndexOn, hasUserIndexOn, isOptimizerEnabled, list, list, lookup, lookup, modify, modify, move, move, moveAndRename, moveAndRename, rename, rename, search, setCacheSize, setIndexedAttributes, setOptimizerEnabled, setPartitionPath, setSyncOnWrite, setupSystemIndices, setupUserIndices, toString, unbind

Methods inherited from class org.apache.directory.server.core.api.partition.AbstractPartition

checkInitialized, destroy, getId, getSchemaManager, getSuffixDn, initialize, isInitialized, setId, setSchemaManager, setSuffixDn

Methods inherited from class java.lang.Object

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

Constructor Detail

AvlPartition

public AvlPartition(org.apache.directory.shared.ldap.model.schema.SchemaManager schemaManager)

Creates a store based on AVL Trees.

Method Detail

doInit

protected void doInit()
               throws Exception

Overrides:

doInit in class AbstractBTreePartition<Long>

Throws:

Exception

getDefaultId

public Long getDefaultId()

Gets the default ID.}

Specified by:

getDefaultId in interface Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

Specified by:

getDefaultId in class AbstractBTreePartition<Long>

Returns:

the default ID.

getRootId

public Long getRootId()

Gets the root ID of this store implementation.

Specified by:

getRootId in interface Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

Specified by:

getRootId in class AbstractBTreePartition<Long>

Returns:

the root ID

sync

public void sync()
          throws Exception

Throws:

Exception

isSyncOnWrite

public boolean isSyncOnWrite()

always returns false, cause this is a in-memory store

Specified by:

isSyncOnWrite in interface Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

Overrides:

isSyncOnWrite in class AbstractBTreePartition<Long>

Returns:

true if we write to disk for every modification

getCacheSize

public int getCacheSize()

Always returns 0 (zero), cause this is a in-memory store

Specified by:

getCacheSize in interface Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

Overrides:

getCacheSize in class AbstractBTreePartition<Long>

Returns:

the maximum size of the cache as the number of entries maximum before paging out

convertAndInit

protected Index<?,org.apache.directory.shared.ldap.model.entry.Entry,Long> convertAndInit(Index<?,org.apache.directory.shared.ldap.model.entry.Entry,Long> index)
                                                                                   throws Exception

Description copied from class: AbstractBTreePartition

Convert and initialize an index for a specific store implementation.

Specified by:

convertAndInit in class AbstractBTreePartition<Long>

Parameters:

index - the index

Returns:

the converted and initialized index

Throws:

Exception

getPartitionPath

public URI getPartitionPath()

Gets the path in which this Partition stores data.

Specified by:

getPartitionPath in interface Store<org.apache.directory.shared.ldap.model.entry.Entry,Long>

Overrides:

getPartitionPath in class AbstractBTreePartition<Long>

Returns:

the path in which this Partition stores data.