public class JdbmTable<K,V> extends AbstractTable<K,V>
allowsDuplicates, commitNumber, count, keyComparator, name, schemaManager, valueComparator
Constructor and Description |
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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.
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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.
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Modifier and Type | Method and Description |
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void |
close()
Closes the underlying Db of this Table.
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long |
count(K key)
Gets the count of the number of records in this Table with a specific
key: returns the number of duplicates for a key.
|
org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>> |
cursor()
Creates a Cursor that traverses Tuples in a Table.
|
org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>> |
cursor(K key)
Creates a Cursor that traverses Table Tuples for the same key.
|
V |
get(K key)
Gets the value of a record by key if the key exists.
|
jdbm.helper.Serializer |
getKeySerializer() |
Marshaller<ArrayTree<V>> |
getMarshaller() |
jdbm.helper.Serializer |
getValueSerializer() |
long |
greaterThanCount(K key)
Gets the number of records greater than or equal to a key value.
|
boolean |
has(K key)
Checks to see if this table has one or more tuples with a specific key:
this is exactly the same as a get call with a check to see if the
returned value is null or not.
|
boolean |
has(K key,
V value)
Checks to see if this table has a key with a specific value.
|
boolean |
hasGreaterOrEqual(K key)
Checks to see if this table has a record with a key greater than or
equal to the key argument.
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boolean |
hasGreaterOrEqual(K key,
V val)
Checks to see if this table has a Tuple with a key equal to the key
argument, yet with a value greater than or equal to the value argument
provided.
|
boolean |
hasLessOrEqual(K key)
Checks to see if this table has a record with a key less than or
equal to the key argument.
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boolean |
hasLessOrEqual(K key,
V val)
Checks to see if this table has a Tuple with a key equal to the key
argument, yet with a value less than or equal to the value argument
provided.
|
boolean |
isDupsEnabled()
Checks to see if this Table has allows for duplicate keys (a.k.a.
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long |
lessThanCount(K key)
Gets the number of records less than or equal to a key value.
|
void |
put(K key,
V value)
Puts a record into this Table.
|
void |
remove(K key)
Removes all records with a specified key from this Table.
|
void |
remove(K key,
V value)
Removes a single key value pair with a specified key and value from
this Table.
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void |
sync()
Synchronizes the buffers with disk.
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org.apache.directory.api.ldap.model.cursor.Cursor<V> |
valueCursor(K key)
Creates a Cursor that traverses Table values for the same key.
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count, getKeyComparator, getName, getValueComparator, toString
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
schemaManager
- The server schemaManagername
- the name of the tablenumDupLimit
- the size limit of duplicates before switching to BTrees for values instead of AvlTreesmanager
- the record manager to be used for this tablekeyComparator
- a key comparatorvalueComparator
- a value comparatorkeySerializer
- a serializer to use for the keys instead of using
default Java serialization which could be very expensivevalueSerializer
- a serializer to use for the values instead of
using default Java serialization which could be very expensiveIOException
- if the table's file cannot be createdpublic 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
schemaManager
- The server schemaManagername
- the name of the tablemanager
- the record manager to be used for this tablekeyComparator
- a tuple comparatorkeySerializer
- a serializer to use for the keys instead of using
default Java serialization which could be very expensivevalueSerializer
- a serializer to use for the values instead of
using default Java serialization which could be very expensiveIOException
- if the table's file cannot be createdpublic jdbm.helper.Serializer getKeySerializer()
public jdbm.helper.Serializer getValueSerializer()
public boolean isDupsEnabled()
Table
Table.isDupsEnabled()
public long greaterThanCount(K key) throws IOException
Table
key
- the key to use in comparisonsIOException
Table#greaterThanCount(Object)
public long lessThanCount(K key) throws IOException
Table
key
- the key to use in comparisonsIOException
Table#lessThanCount(Object)
public long count(K key) throws org.apache.directory.api.ldap.model.exception.LdapException
Table
key
- the Object key to count.org.apache.directory.api.ldap.model.exception.LdapException
Table.count(java.lang.Object)
public V get(K key) throws org.apache.directory.api.ldap.model.exception.LdapException
Table
key
- the key of the recordorg.apache.directory.api.ldap.model.exception.LdapException
public boolean hasGreaterOrEqual(K key, V val) throws org.apache.directory.api.ldap.model.exception.LdapException
Table
key
- the keyval
- the value to compare values toorg.apache.directory.api.ldap.model.exception.LdapException
Table#hasGreaterOrEqual(Object,Object)
public boolean hasLessOrEqual(K key, V val) throws org.apache.directory.api.ldap.model.exception.LdapException
Table
key
- the keyval
- the value to compare values toorg.apache.directory.api.ldap.model.exception.LdapException
Table#hasLessOrEqual(Object,Object)
public boolean hasGreaterOrEqual(K key) throws IOException
Table
key
- the key to compare keys toIOException
Table.hasGreaterOrEqual(Object)
public boolean hasLessOrEqual(K key) throws IOException
Table
key
- the key to compare keys toIOException
Table#hasLessOrEqual(Object)
public boolean has(K key, V value) throws org.apache.directory.api.ldap.model.exception.LdapException
Table
key
- the key to check forvalue
- the value to check fororg.apache.directory.api.ldap.model.exception.LdapException
Table.has(java.lang.Object,
java.lang.Object)
public boolean has(K key) throws IOException
Table
key
- the Object of the key to check forIOException
Table#has(java.lang.Object)
public void put(K key, V value) throws Exception
Table
key
- the key of the recordvalue
- the value of the record.Exception
- if there is a failure to read or write to the
underlying DbIllegalArgumentException
- if a null key or value is usedTable.put(java.lang.Object,
java.lang.Object)
public void remove(K key, V value) throws IOException
Table
key
- the key of the record to removevalue
- the value of the record to removeIOException
Table.remove(java.lang.Object,
java.lang.Object)
public void remove(K key)
Table
key
- the key of the records to removeTable#remove(Object)
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
Table
org.apache.directory.api.ldap.model.exception.LdapException
public org.apache.directory.api.ldap.model.cursor.Cursor<org.apache.directory.api.ldap.model.cursor.Tuple<K,V>> cursor(K key) throws Exception
Table
key
- the duplicate key to return the Tuples ofException
- if there are failures accessing underlying storespublic org.apache.directory.api.ldap.model.cursor.Cursor<V> valueCursor(K key) throws Exception
Table
key
- the duplicate key to return the values ofException
- if there are failures accessing underlying storespublic void close() throws IOException
Table
IOException
Table#close()
public void sync() throws IOException
IOException
- if errors are encountered on the flushpublic Marshaller<ArrayTree<V>> getMarshaller()
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