Package io.vertigo.datastore.impl.kvstore

Class KVStoreManagerImpl

java.lang.Object

io.vertigo.datastore.impl.kvstore.KVStoreManagerImpl

All Implemented Interfaces:

io.vertigo.core.node.component.Component, io.vertigo.core.node.component.CoreComponent, io.vertigo.core.node.component.Manager, KVStoreManager

public final class KVStoreManagerImpl
extends Object
implements KVStoreManager

Standard implementation of the Key-Value DataBase.

Author:

pchretien

Constructor Summary

Constructors

Constructor	Description
KVStoreManagerImpl(List<KVStorePlugin> kvStorePlugins)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	clear(String collection)	Removes all elements from a collection.
int	count(String collection)
<C> Optional<C>	find(String collection, String id, Class<C> clazz)	Finds the optional element to which the id is mapped inside the specified collection.
<C> List<C>	findAll(String collection, int skip, Integer limit, Class<C> clazz)	Finds all elements contained inside the specified collection
void	put(String collection, String id, Object element)	Adds an element defined by an id in a collection.
void	remove(String collection, String id)	Removes an element defined by an id from a collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

KVStoreManagerImpl

@Inject
public KVStoreManagerImpl(List<KVStorePlugin> kvStorePlugins)

Constructor.

Parameters:

kvStorePlugins - kvStore list

Method Detail

count

public int count(String collection)

Specified by:

count in interface KVStoreManager

Parameters:

collection - the collection

Returns:

count of elements into collection

put

public void put(String collection,
                String id,
                Object element)

Adds an element defined by an id in a collection.

Specified by:

put in interface KVStoreManager

Parameters:

collection - the collection

id - the id

element - the element

remove

public void remove(String collection,
                   String id)

Removes an element defined by an id from a collection. If the collection doesn't contain the is then a exception is thrown.

Specified by:

remove in interface KVStoreManager

Parameters:

collection - the collection

id - the id

clear

public void clear(String collection)

Removes all elements from a collection.

Specified by:

clear in interface KVStoreManager

Parameters:

collection - the collection

find

public <C> Optional<C> find(String collection,
                            String id,
                            Class<C> clazz)

Finds the optional element to which the id is mapped inside the specified collection. If the element is not found then an empty option is returned.

Specified by:

find in interface KVStoreManager

Type Parameters:

C - Element type

Parameters:

collection - the collection

id - the id

clazz - the type of the searched element

Returns:

the option

findAll

public <C> List<C> findAll(String collection,
                           int skip,
                           Integer limit,
                           Class<C> clazz)

Finds all elements contained inside the specified collection. *

Specified by:

findAll in interface KVStoreManager

Type Parameters:

C - Element type

Parameters:

collection - the collection

skip - the position from which the elements are returned

limit - the limit size of elements

clazz - the type of the searched element

Returns:

the list of elements.