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

Class JdbmMasterTable<E>

java.lang.Object

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable<Long,E>

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmMasterTable<E>

All Implemented Interfaces:

MasterTable<E>, Table<Long,E>

public class JdbmMasterTable<E>
extends JdbmTable<Long,E>
implements MasterTable<E>

The master table used to store the Attributes of entries.

Version:

$Rev: 902308 $

Author:

Apache Directory Project

Field Summary

Fields

Modifier and Type	Field and Description
protected JdbmTable<String,String>	adminTbl

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

DBF, SEQPROP_KEY

Constructor Summary

Constructors

Modifier	Constructor and Description
	JdbmMasterTable(RecordManager recMan, org.apache.directory.shared.ldap.schema.SchemaManager schemaManager) Creates the master table using JDBM B+Trees for the backing store.
protected	JdbmMasterTable(RecordManager recMan, org.apache.directory.shared.ldap.schema.SchemaManager schemaManager, String dbName, Serializer serializer)

Method Summary

Methods

Modifier and Type	Method and Description
void	delete(Long id) Deletes a ServerEntry from the master table at an index specified by id.
E	get(Long id) Gets the ServerEntry from this MasterTable.
Long	getCurrentId() Gets the value of the id sequence from this MasterTable's sequence without affecting the value.
Long	getNextId() Get's the next value from this SequenceBDb.
String	getProperty(String property) Gets a persistent property stored in the admin table of this MasterTable.
void	put(Long id, E entry) Puts the ServerEntry into this master table at an index specified by id.
void	setProperty(String property, String value) Sets a persistent property stored in the admin table of this MasterTable.

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

close, count, count, cursor, cursor, getKeyComparator, getKeySerializer, getMarshaller, getName, getValueComparator, getValueSerializer, greaterThanCount, has, has, hasGreaterOrEqual, hasGreaterOrEqual, hasLessOrEqual, hasLessOrEqual, isCountExact, isDupsEnabled, lessThanCount, remove, remove, sync, valueCursor

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.directory.server.xdbm.Table

close, count, count, cursor, cursor, getKeyComparator, getName, getValueComparator, greaterThanCount, has, has, hasGreaterOrEqual, hasGreaterOrEqual, hasLessOrEqual, hasLessOrEqual, isCountExact, isDupsEnabled, lessThanCount, remove, remove, valueCursor

Field Detail

adminTbl

protected final JdbmTable<String,String> adminTbl

Constructor Detail

JdbmMasterTable

public JdbmMasterTable(RecordManager recMan,
               org.apache.directory.shared.ldap.schema.SchemaManager schemaManager)
                throws Exception

Creates the master table using JDBM B+Trees for the backing store.

Parameters:

recMan - the JDBM record manager

schemaManager - the schema mamanger

Throws:

Exception - if there is an error opening the Db file.

JdbmMasterTable

protected JdbmMasterTable(RecordManager recMan,
               org.apache.directory.shared.ldap.schema.SchemaManager schemaManager,
               String dbName,
               Serializer serializer)
                   throws Exception

Throws:

Exception

Method Detail

get

public E get(Long id)
      throws Exception

Gets the ServerEntry from this MasterTable.

Specified by:

get in interface MasterTable<E>

Specified by:

get in interface Table<Long,E>

Overrides:

get in class JdbmTable<Long,E>

Parameters:

id - the Long id of the entry to retrieve.

Returns:

the ServerEntry with operational attributes and all.

Throws:

Exception - if there is a read error on the underlying Db.

put

public void put(Long id,
       E entry)
         throws Exception

Puts the ServerEntry into this master table at an index specified by id. Used both to create new entries and update existing ones.

Specified by:

put in interface MasterTable<E>

Specified by:

put in interface Table<Long,E>

Overrides:

put in class JdbmTable<Long,E>

Parameters:

entry - the ServerEntry w/ operational attributes

id - the Long id of the entry to put

Throws:

Exception - if there is a write error on the underlying Db.

See Also:

Table.put(java.lang.Object, java.lang.Object)

delete

public void delete(Long id)
            throws Exception

Deletes a ServerEntry from the master table at an index specified by id.

Specified by:

delete in interface MasterTable<E>

Parameters:

id - the Long id of the entry to delete

Throws:

Exception - if there is a write error on the underlying Db

getCurrentId

public Long getCurrentId()
                  throws Exception

Description copied from interface: MasterTable

Gets the value of the id sequence from this MasterTable's sequence without affecting the value.

Specified by:

getCurrentId in interface MasterTable<E>

Throws:

Exception - if the admin table storing sequences cannot be read

getNextId

public Long getNextId()
               throws Exception

Get's the next value from this SequenceBDb. This has the side-effect of changing the current sequence values permanently in memory and on disk. Master table sequence begins at BigInteger.ONE. The BigInteger.ZERO is used for the fictitious parent of the suffix root entry.

Specified by:

getNextId in interface MasterTable<E>

Returns:

the current value incremented by one.

Throws:

Exception - if the admin table storing sequences cannot be read and written to.

getProperty

public String getProperty(String property)
                   throws Exception

Gets a persistent property stored in the admin table of this MasterTable.

Specified by:

getProperty in interface MasterTable<E>

Parameters:

property - the key of the property to get the value of

Returns:

the value of the property

Throws:

Exception - when the underlying admin table cannot be read

setProperty

public void setProperty(String property,
               String value)
                 throws Exception

Sets a persistent property stored in the admin table of this MasterTable.

Specified by:

setProperty in interface MasterTable<E>

Parameters:

property - the key of the property to set the value of

value - the value of the property

Throws:

Exception - when the underlying admin table cannot be writen