org.springframework.data.map

Class MapKeyValueAdapter

java.lang.Object

org.springframework.data.keyvalue.core.AbstractKeyValueAdapter

org.springframework.data.map.MapKeyValueAdapter

All Implemented Interfaces:

DisposableBean, KeyValueAdapter

public class MapKeyValueAdapter
extends AbstractKeyValueAdapter

KeyValueAdapter implementation for Map.

Author:

Christoph Strobl

Constructor Summary

Constructors

Constructor and Description
MapKeyValueAdapter() Create new MapKeyValueAdapter using ConcurrentHashMap as backing store type.
MapKeyValueAdapter(Class<? extends Map> mapType) Creates a new MapKeyValueAdapter using the given Map as backing store.
MapKeyValueAdapter(Map<Serializable,Map<Serializable,Object>> store) Create new instance of MapKeyValueAdapter using given dataStore for persistence.

Method Summary

Modifier and Type	Method and Description
void	clear() Removes all objects.
boolean	contains(Serializable id, Serializable keyspace) Check if a object with given id exists in keyspace.
long	count(Serializable keyspace) Count number of objects within keyspace.
Object	delete(Serializable id, Serializable keyspace) Delete and return the obect with given type and id.
void	deleteAllOf(Serializable keyspace) Remove all objects of given type.
void	destroy()
CloseableIterator<Map.Entry<Serializable,Object>>	entries(Serializable keyspace) Returns a CloseableIterator that iterates over all entries.
Object	get(Serializable id, Serializable keyspace) Get the object with given id from keyspace.
Collection<?>	getAllOf(Serializable keyspace) Get all elements for given keyspace.
protected Map<Serializable,Object>	getKeySpaceMap(Serializable keyspace) Get map associated with given key space.
Object	put(Serializable id, Object item, Serializable keyspace) Add object with given id to keyspace.

Methods inherited from class org.springframework.data.keyvalue.core.AbstractKeyValueAdapter

count, delete, find, find, get, getQueryEngine

Methods inherited from class java.lang.Object

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

Constructor Detail

MapKeyValueAdapter

public MapKeyValueAdapter()

Create new MapKeyValueAdapter using ConcurrentHashMap as backing store type.

MapKeyValueAdapter

public MapKeyValueAdapter(Class<? extends Map> mapType)

Creates a new MapKeyValueAdapter using the given Map as backing store.

Parameters:

mapType - must not be null.

MapKeyValueAdapter

public MapKeyValueAdapter(Map<Serializable,Map<Serializable,Object>> store)

Create new instance of MapKeyValueAdapter using given dataStore for persistence.

Parameters:

store - must not be null.

Method Detail

put

public Object put(Serializable id,
                  Object item,
                  Serializable keyspace)

Description copied from interface: KeyValueAdapter

Add object with given id to keyspace.

Parameters:

id - must not be null.

keyspace - must not be null.

Returns:

the item previously associated with the id.

contains

public boolean contains(Serializable id,
                        Serializable keyspace)

Description copied from interface: KeyValueAdapter

Check if a object with given id exists in keyspace.

Parameters:

id - must not be null.

keyspace - must not be null.

Returns:

true if item of type with id exists.

count

public long count(Serializable keyspace)

Description copied from interface: KeyValueAdapter

Count number of objects within keyspace.

Parameters:

keyspace - must not be null.

get

public Object get(Serializable id,
                  Serializable keyspace)

Description copied from interface: KeyValueAdapter

Get the object with given id from keyspace.

Parameters:

id - must not be null.

keyspace - must not be null.

Returns:

null in case no matching item exists.

delete

public Object delete(Serializable id,
                     Serializable keyspace)

Description copied from interface: KeyValueAdapter

Delete and return the obect with given type and id.

Parameters:

id - must not be null.

keyspace - must not be null.

Returns:

null if object could not be found

getAllOf

public Collection<?> getAllOf(Serializable keyspace)

Description copied from interface: KeyValueAdapter

Get all elements for given keyspace.

Parameters:

keyspace - must not be null.

Returns:

empty Collection if nothing found.

entries

public CloseableIterator<Map.Entry<Serializable,Object>> entries(Serializable keyspace)

Description copied from interface: KeyValueAdapter

Returns a CloseableIterator that iterates over all entries.

Returns:

deleteAllOf

public void deleteAllOf(Serializable keyspace)

Description copied from interface: KeyValueAdapter

Remove all objects of given type.

Parameters:

keyspace - must not be null.

clear

public void clear()

Description copied from interface: KeyValueAdapter

Removes all objects.

destroy

public void destroy()
             throws Exception

Throws:

Exception

getKeySpaceMap

protected Map<Serializable,Object> getKeySpaceMap(Serializable keyspace)

Get map associated with given key space.

Parameters:

keyspace - must not be null.

Returns: