com.googlecode.n_orm.storeapi

Class SimpleStoreWrapper

java.lang.Object

com.googlecode.n_orm.storeapi.SimpleStoreWrapper

All Implemented Interfaces:

Store

public class SimpleStoreWrapper
extends Object
implements Store

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SimpleStoreWrapper()

Method Summary

Modifier and Type	Method and Description
long	count(MetaInformation meta, String table, Constraint c) Counts the number of element satisfying the constraint.
void	delete(MetaInformation meta, String table, String id) Deletes a particular element.
boolean	exists(MetaInformation meta, String table, String row) Tests for a row.
boolean	exists(MetaInformation meta, String table, String row, String family) Tests whether a column family is empty.
CloseableKeyIterator	get(MetaInformation meta, String table, Constraint c, int limit, Set<String> families) Rows matching constraint sorted according to their key in ascending order.
Row.ColumnFamilyData	get(MetaInformation meta, String table, String id, Set<String> families) Returns all elements in families ; no side-effect.
Map<String,byte[]>	get(MetaInformation meta, String table, String id, String family) Returns all elements in a family ; no side-effect.
Map<String,byte[]>	get(MetaInformation meta, String table, String id, String family, Constraint c) Returns all elements in a family ; no side-effect.
byte[]	get(MetaInformation meta, String table, String row, String family, String key) Returns an element from a family.
SimpleStore	getStore()
static SimpleStoreWrapper	getWrapper(SimpleStore s)
boolean	hasTable(String tableName) Checks whether the given table exists in this store.
void	start() Called once the store is created ; only one store is instanciated with the same properties.
void	storeChanges(MetaInformation meta, String table, String id, Row.ColumnFamilyData changed, Map<String,Set<String>> removed, Map<String,Map<String,Number>> increments) Stores given piece of information.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleStoreWrapper

protected SimpleStoreWrapper()

Method Detail

getWrapper

public static SimpleStoreWrapper getWrapper(SimpleStore s)

getStore

public SimpleStore getStore()

start

public void start()
           throws DatabaseNotReachedException

Description copied from interface: Store

Called once the store is created ; only one store is instanciated with the same properties.

Specified by:

start in interface Store

Throws:

DatabaseNotReachedException

hasTable

public boolean hasTable(String tableName)
                 throws DatabaseNotReachedException

Description copied from interface: Store

Checks whether the given table exists in this store.

Specified by:

hasTable in interface Store

Throws:

DatabaseNotReachedException

delete

public void delete(MetaInformation meta,
                   String table,
                   String id)
            throws DatabaseNotReachedException

Description copied from interface: Store

Deletes a particular element.

Specified by:

delete in interface Store

Throws:

DatabaseNotReachedException

exists

public boolean exists(MetaInformation meta,
                      String table,
                      String row)
               throws DatabaseNotReachedException

Description copied from interface: Store

Tests for a row.

Specified by:

exists in interface Store

Throws:

DatabaseNotReachedException

exists

public boolean exists(MetaInformation meta,
                      String table,
                      String row,
                      String family)
               throws DatabaseNotReachedException

Description copied from interface: Store

Tests whether a column family is empty.

Specified by:

exists in interface Store

Throws:

DatabaseNotReachedException

get

public CloseableKeyIterator get(MetaInformation meta,
                                String table,
                                Constraint c,
                                int limit,
                                Set<String> families)
                         throws DatabaseNotReachedException

Description copied from interface: Store

Rows matching constraint sorted according to their key in ascending order.

Specified by:

get in interface Store

Throws:

DatabaseNotReachedException

get

public byte[] get(MetaInformation meta,
                  String table,
                  String row,
                  String family,
                  String key)
           throws DatabaseNotReachedException

Description copied from interface: Store

Returns an element from a family.

Specified by:

get in interface Store

Throws:

DatabaseNotReachedException

get

public Map<String,byte[]> get(MetaInformation meta,
                              String table,
                              String id,
                              String family)
                       throws DatabaseNotReachedException

Description copied from interface: Store

Returns all elements in a family ; no side-effect. In case one element is missing, null is returned.

Specified by:

get in interface Store

Throws:

DatabaseNotReachedException

get

public Map<String,byte[]> get(MetaInformation meta,
                              String table,
                              String id,
                              String family,
                              Constraint c)
                       throws DatabaseNotReachedException

Description copied from interface: Store

Returns all elements in a family ; no side-effect. In case one element is missing, null is returned.

Specified by:

get in interface Store

Throws:

DatabaseNotReachedException

get

public Row.ColumnFamilyData get(MetaInformation meta,
                                String table,
                                String id,
                                Set<String> families)
                         throws DatabaseNotReachedException

Description copied from interface: Store

Returns all elements in families ; no side-effect. In case element with the given key is missing, null is returned.

Specified by:

get in interface Store

table - the table from which to find the element

id - the unique identifier (i.e. the key) with which the element was stored

families - the set of column families to be activated ; should never be null or empty

Returns:

the data stored for each family ; null if and only if the id does not exist within the given table

Throws:

DatabaseNotReachedException

storeChanges

public void storeChanges(MetaInformation meta,
                         String table,
                         String id,
                         Row.ColumnFamilyData changed,
                         Map<String,Set<String>> removed,
                         Map<String,Map<String,Number>> increments)
                  throws DatabaseNotReachedException

Description copied from interface: Store

Stores given piece of information. In case an element is missing in the data store (table, row, family, ...), it is created.

Specified by:

storeChanges in interface Store

Throws:

DatabaseNotReachedException

count

public long count(MetaInformation meta,
                  String table,
                  Constraint c)
           throws DatabaseNotReachedException

Description copied from interface: Store

Counts the number of element satisfying the constraint.

Specified by:

count in interface Store

Throws:

DatabaseNotReachedException