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

Class JdbmTable<K,V>

java.lang.Object

org.apache.directory.server.xdbm.AbstractTable<K,V>

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable<K,V>

All Implemented Interfaces:

org.apache.directory.server.xdbm.Table<K,V>

Direct Known Subclasses:

JdbmMasterTable

public class JdbmTable<K,V>
extends org.apache.directory.server.xdbm.AbstractTable<K,V>

A jdbm Btree wrapper that enables duplicate sorted keys using collections.

Author:

Apache Directory Project

Field Summary

Fields inherited from class org.apache.directory.server.xdbm.AbstractTable

allowsDuplicates, commitNumber, count, keyComparator, name, schemaManager, valueComparator

Constructor Summary

Constructors

Constructor and Description
JdbmTable(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager, String name, int numDupLimit, jdbm.RecordManager manager, Comparator<K> keyComparator, Comparator<V> valueComparator, jdbm.helper.Serializer keySerializer, jdbm.helper.Serializer valueSerializer) Creates a Jdbm BTree based tuple Table abstraction that enables duplicates.
JdbmTable(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager, String name, jdbm.RecordManager manager, Comparator<K> keyComparator, jdbm.helper.Serializer keySerializer, jdbm.helper.Serializer valueSerializer) Creates a Jdbm BTree based tuple Table abstraction without duplicates enabled using a simple key comparator.

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
long	count(K key)
org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>>	cursor()
org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>>	cursor(K key)
V	get(K key)
jdbm.helper.Serializer	getKeySerializer()
org.apache.directory.server.core.avltree.Marshaller<org.apache.directory.server.core.avltree.ArrayTree<V>>	getMarshaller()
jdbm.helper.Serializer	getValueSerializer()
long	greaterThanCount(K key)
boolean	has(K key)
boolean	has(K key, V value)
boolean	hasGreaterOrEqual(K key)
boolean	hasGreaterOrEqual(K key, V val)
boolean	hasLessOrEqual(K key)
boolean	hasLessOrEqual(K key, V val)
boolean	isDupsEnabled()
long	lessThanCount(K key)
void	put(K key, V value)
void	remove(K key)
void	remove(K key, V value)
void	sync() Synchronizes the buffers with disk.
org.apache.directory.api.ldap.model.cursor.Cursor<V>	valueCursor(K key)

Methods inherited from class org.apache.directory.server.xdbm.AbstractTable

count, getKeyComparator, getName, getValueComparator, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbmTable

public JdbmTable(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager,
         String name,
         int numDupLimit,
         jdbm.RecordManager manager,
         Comparator<K> keyComparator,
         Comparator<V> valueComparator,
         jdbm.helper.Serializer keySerializer,
         jdbm.helper.Serializer valueSerializer)
          throws IOException

Creates a Jdbm BTree based tuple Table abstraction that enables duplicates.

Parameters:

schemaManager - The server schemaManager

name - the name of the table

numDupLimit - the size limit of duplicates before switching to BTrees for values instead of AvlTrees

manager - the record manager to be used for this table

keyComparator - a key comparator

valueComparator - a value comparator

keySerializer - a serializer to use for the keys instead of using default Java serialization which could be very expensive

valueSerializer - a serializer to use for the values instead of using default Java serialization which could be very expensive

Throws:

IOException - if the table's file cannot be created

JdbmTable

public JdbmTable(org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager,
         String name,
         jdbm.RecordManager manager,
         Comparator<K> keyComparator,
         jdbm.helper.Serializer keySerializer,
         jdbm.helper.Serializer valueSerializer)
          throws IOException

Creates a Jdbm BTree based tuple Table abstraction without duplicates enabled using a simple key comparator.

Parameters:

schemaManager - The server schemaManager

name - the name of the table

manager - the record manager to be used for this table

keyComparator - a tuple comparator

keySerializer - a serializer to use for the keys instead of using default Java serialization which could be very expensive

valueSerializer - a serializer to use for the values instead of using default Java serialization which could be very expensive

Throws:

IOException - if the table's file cannot be created

Method Detail

getKeySerializer

public jdbm.helper.Serializer getKeySerializer()

getValueSerializer

public jdbm.helper.Serializer getValueSerializer()

isDupsEnabled

public boolean isDupsEnabled()

See Also:

Table.isDupsEnabled()

greaterThanCount

public long greaterThanCount(K key)
                      throws IOException

Throws:

IOException

See Also:

Table.greaterThanCount(Object)

lessThanCount

public long lessThanCount(K key)
                   throws IOException

Throws:

IOException

See Also:

Table.lessThanCount(Object)

count

public long count(K key)
           throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

See Also:

Table.count(java.lang.Object)

get

public V get(K key)
      throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

hasGreaterOrEqual

public boolean hasGreaterOrEqual(K key,
                        V val)
                          throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

See Also:

Table.hasGreaterOrEqual(Object,Object)

hasLessOrEqual

public boolean hasLessOrEqual(K key,
                     V val)
                       throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

See Also:

Table.hasLessOrEqual(Object,Object)

hasGreaterOrEqual

public boolean hasGreaterOrEqual(K key)
                          throws IOException

Throws:

IOException

See Also:

Table.hasGreaterOrEqual(Object)

hasLessOrEqual

public boolean hasLessOrEqual(K key)
                       throws IOException

Throws:

IOException

See Also:

Table.hasLessOrEqual(Object)

has

public boolean has(K key,
          V value)
            throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

See Also:

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

has

public boolean has(K key)
            throws IOException

Throws:

IOException

See Also:

Table.has(java.lang.Object)

put

public void put(K key,
       V value)
         throws Exception

Throws:

Exception

See Also:

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

remove

public void remove(K key,
          V value)
            throws IOException

Throws:

IOException

See Also:

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

remove

public void remove(K key)

See Also:

Table.remove(Object)

cursor

public org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>> cursor()
                                                                                                                throws org.apache.directory.api.ldap.model.exception.LdapException

Throws:

org.apache.directory.api.ldap.model.exception.LdapException

cursor

public org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>> cursor(K key)
                                                                                                                throws Exception

Throws:

Exception

valueCursor

public org.apache.directory.api.ldap.model.cursor.Cursor<V> valueCursor(K key)
                                                                 throws Exception

Throws:

Exception

close

public void close()
           throws IOException

Throws:

IOException

See Also:

Table.close()

sync

public void sync()
          throws IOException

Synchronizes the buffers with disk.

Throws:

IOException - if errors are encountered on the flush

getMarshaller

public org.apache.directory.server.core.avltree.Marshaller<org.apache.directory.server.core.avltree.ArrayTree<V>> getMarshaller()