org.apache.gora.dynamodb.store

Class DynamoDBNativeStore<K,T extends org.apache.gora.persistency.Persistent>

java.lang.Object

org.apache.gora.store.ws.impl.WSDataStoreBase<K,T>

org.apache.gora.dynamodb.store.DynamoDBNativeStore<K,T>

All Implemented Interfaces:

IDynamoDB<K,T>, org.apache.gora.store.DataStore<K,T>

public class DynamoDBNativeStore<K,T extends org.apache.gora.persistency.Persistent>
extends org.apache.gora.store.ws.impl.WSDataStoreBase<K,T>
implements IDynamoDB<K,T>

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG Logger for DynamoDBNativeStore.

Fields inherited from class org.apache.gora.store.ws.impl.WSDataStoreBase

authentication, autoCreateSchema, keyClass, persistentClass, properties

Constructor Summary

Constructors

Constructor and Description
DynamoDBNativeStore()

Method Summary

Modifier and Type	Method and Description
void	close()
void	createSchema()
boolean	delete(K key) Deletes the object using key
long	deleteByQuery(org.apache.gora.query.Query<K,T> query) Deletes items using a specific query
void	deleteSchema()
org.apache.gora.query.Result<K,T>	execute(org.apache.gora.query.Query<K,T> query) Executes a query after building a DynamoDB specific query based on the received one
void	flush()
T	get(K key)
T	get(K key, String[] fields)
org.apache.gora.persistency.BeanFactory<K,T>	getBeanFactory()
List<org.apache.gora.query.PartitionQuery<K,T>>	getPartitions(org.apache.gora.query.Query<K,T> arg0)
String	getSchemaName()
void	initialize(Class<K> keyClass, Class<T> pPersistentClass, Properties properties) Initialize the data store by reading the credentials, setting the cloud provider, setting the client's properties up, setting the end point and reading the mapping file
K	newKey() Returns a new instance of the key object.
T	newPersistent() Returns a new persistent object
org.apache.gora.query.Query<K,T>	newQuery() Creates a new DynamoDBQuery
void	put(K key, T obj) Puts an object identified by a key
boolean	schemaExists()
void	setBeanFactory(org.apache.gora.persistency.BeanFactory<K,T> arg0)
void	setDynamoDBStoreHandler(DynamoDBStore<K,T> dynamoHandler) Sets the handler to the main DynamoDB

Methods inherited from class org.apache.gora.store.ws.impl.WSDataStoreBase

equals, getConf, getKeyClass, getPersistentClass, getSchemaName, getWSProvider, readFields, setConf, setKeyClass, setPersistentClass, setWsProvider, truncateSchema, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.gora.store.DataStore

getKeyClass, getPersistentClass, setKeyClass, setPersistentClass, truncateSchema

Field Detail

LOG

public static final org.slf4j.Logger LOG

Logger for DynamoDBNativeStore.

Constructor Detail

DynamoDBNativeStore

public DynamoDBNativeStore()

Method Detail

deleteByQuery

public long deleteByQuery(org.apache.gora.query.Query<K,T> query)

Deletes items using a specific query

Specified by:

deleteByQuery in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Parameters:

query - matching records to this query will be deleted

Returns:

execute

public org.apache.gora.query.Result<K,T> execute(org.apache.gora.query.Query<K,T> query)

Executes a query after building a DynamoDB specific query based on the received one

Specified by:

execute in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

get

public T get(K key,
             String[] fields)

Specified by:

get in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

get

public T get(K key)

Specified by:

get in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

newQuery

public org.apache.gora.query.Query<K,T> newQuery()

Creates a new DynamoDBQuery

Specified by:

newQuery in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

newKey

public K newKey()

Returns a new instance of the key object.

Specified by:

newKey in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Returns:

newPersistent

public T newPersistent()

Returns a new persistent object

Specified by:

newPersistent in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Returns:

put

public void put(K key,
                T obj)

Puts an object identified by a key

Specified by:

put in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Parameters:

key -

obj -

delete

public boolean delete(K key)

Deletes the object using key

Specified by:

delete in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Parameters:

key - the key of the object

Returns:

true for a successful process

initialize

public void initialize(Class<K> keyClass,
                       Class<T> pPersistentClass,
                       Properties properties)

Initialize the data store by reading the credentials, setting the cloud provider, setting the client's properties up, setting the end point and reading the mapping file

Specified by:

initialize in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Overrides:

initialize in class org.apache.gora.store.ws.impl.WSDataStoreBase<K,T extends org.apache.gora.persistency.Persistent>

close

public void close()

Specified by:

close in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

flush

public void flush()

Specified by:

flush in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

getBeanFactory

public org.apache.gora.persistency.BeanFactory<K,T> getBeanFactory()

Specified by:

getBeanFactory in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

getPartitions

public List<org.apache.gora.query.PartitionQuery<K,T>> getPartitions(org.apache.gora.query.Query<K,T> arg0)
                                                              throws IOException

Specified by:

getPartitions in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

Throws:

IOException

setBeanFactory

public void setBeanFactory(org.apache.gora.persistency.BeanFactory<K,T> arg0)

Specified by:

setBeanFactory in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

createSchema

public void createSchema()

Specified by:

createSchema in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

setDynamoDBStoreHandler

public void setDynamoDBStoreHandler(DynamoDBStore<K,T> dynamoHandler)

Description copied from interface: IDynamoDB

Sets the handler to the main DynamoDB

Specified by:

setDynamoDBStoreHandler in interface IDynamoDB<K,T extends org.apache.gora.persistency.Persistent>

Parameters:

dynamoHandler - handler to main DynamoDB

deleteSchema

public void deleteSchema()

Specified by:

deleteSchema in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

getSchemaName

public String getSchemaName()

Specified by:

getSchemaName in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>

schemaExists

public boolean schemaExists()

Specified by:

schemaExists in interface org.apache.gora.store.DataStore<K,T extends org.apache.gora.persistency.Persistent>