Package io.jmix.core.datastore

Class AbstractDataStore

java.lang.Object

io.jmix.core.datastore.AbstractDataStore

All Implemented Interfaces:

DataStore

Direct Known Subclasses:

JpaDataStore

public abstract class AbstractDataStore
extends Object
implements DataStore

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractDataStore.EntityLoadInfo
protected static interface	AbstractDataStore.TransactionContextState	Designed to store and share various data during load transaction.

Field Summary

Fields

Modifier and Type	Field	Description
protected EntityStates	entityStates
protected KeyValueMapper	keyValueMapper
protected final List<DataStoreEventListener>	listeners
protected Metadata	metadata
protected MetadataTools	metadataTools

Constructor Summary

Constructors

Constructor	Description
AbstractDataStore()

Method Summary

Modifier and Type	Method	Description
protected void	beforeLoadTransactionCommit(LoadContext<?> context, Collection<Object> entities, AbstractDataStore.TransactionContextState transactionContextState)
protected void	beforeSaveTransactionCommit(SaveContext context, Collection<Object> savedEntities, Collection<Object> removedEntities)
protected void	beforeSaveTransactionRollback(SaveContext context)
protected abstract Object	beginLoadTransaction(boolean joinTransaction)
protected abstract Object	beginSaveTransaction(boolean joinTransaction)
protected List<Object>	checkAndReorderLoadedEntities(LoadContext<?> context, List<Object> entities)
protected abstract void	commitTransaction(Object transaction)
protected void	copyNonPersistentAttributes(Object source, Object destination)
protected abstract long	countAll(LoadContext<?> context)
protected abstract long	countAllValues(ValueLoadContext context)
protected abstract Set<Object>	deleteAll(SaveContext context)
protected <T extends BaseDataStoreEvent> void	fireEvent(T event)
long	getCount(LoadContext<?> context)	Returns the number of entity instances for the given query passed in the LoadContext.
long	getCount(ValueLoadContext context)	Returns the number of key-value pairs for the given query passed in the ValueLoadContext.
protected FetchPlan	getFetchPlanForSave(Map<Object,FetchPlan> fetchPlans, Object entity)
protected abstract AbstractDataStore.TransactionContextState	getTransactionContextState(boolean isJoinTransaction)	Invoked after beginLoadTransaction(boolean).
Object	load(LoadContext<?> context)	Loads a single entity instance.
protected abstract List<Object>	loadAll(LoadContext<?> context)
protected Set<Object>	loadAllAfterSave(SaveContext context, Set<Object> savedEntities)
protected abstract List<Object>	loadAllValues(ValueLoadContext context)
List<Object>	loadList(LoadContext<?> context)	Loads collection of entity instances.
protected List<Object>	loadListByBatches(LoadContext<?> context, int actualSize, EventSharedState eventState)
protected abstract Object	loadOne(LoadContext<?> context)
List<KeyValueEntity>	loadValues(ValueLoadContext context)	Loads list of key-value pairs.
void	registerInterceptor(DataStoreEventListener listener)
protected abstract void	rollbackTransaction(Object transaction)
Set<?>	save(SaveContext context)	Saves a collection of entity instances.
protected abstract Set<Object>	saveAll(SaveContext context)
void	setEntityStates(EntityStates entityStates)
void	setKeyValueMapper(KeyValueMapper keyValueMapper)
void	setMetadata(Metadata metadata)
void	setMetadataTools(MetadataTools metadataTools)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.jmix.core.DataStore

getName, setName

Field Details

listeners

protected final List<DataStoreEventListener> listeners

metadata

protected Metadata metadata

metadataTools

protected MetadataTools metadataTools

entityStates

protected EntityStates entityStates

keyValueMapper

protected KeyValueMapper keyValueMapper

Constructor Details

AbstractDataStore

public AbstractDataStore()

Method Details

setMetadata

@Autowired
public void setMetadata(Metadata metadata)

setMetadataTools

@Autowired
public void setMetadataTools(MetadataTools metadataTools)

setEntityStates

@Autowired
public void setEntityStates(EntityStates entityStates)

setKeyValueMapper

@Autowired
public void setKeyValueMapper(KeyValueMapper keyValueMapper)

load

@Nullable
public Object load(LoadContext<?> context)

Description copied from interface: DataStore

Loads a single entity instance.

Specified by:

load in interface DataStore

Returns:

the loaded object, or null if not found

loadList

public List<Object> loadList(LoadContext<?> context)

Description copied from interface: DataStore

Loads collection of entity instances.

Specified by:

loadList in interface DataStore

Returns:

a list of instances, or empty list if nothing found

getCount

public long getCount(LoadContext<?> context)

Description copied from interface: DataStore

Returns the number of entity instances for the given query passed in the LoadContext.

Specified by:

getCount in interface DataStore

Returns:

number of instances in the storage

save

public Set<?> save(SaveContext context)

Description copied from interface: DataStore

Saves a collection of entity instances.

Specified by:

save in interface DataStore

Returns:

set of saved instances

loadValues

public List<KeyValueEntity> loadValues(ValueLoadContext context)

Description copied from interface: DataStore

Loads list of key-value pairs.

Specified by:

loadValues in interface DataStore

Parameters:

context - defines a query for scalar values and a list of keys for returned KeyValueEntity

Returns:

list of KeyValueEntity instances

getCount

public long getCount(ValueLoadContext context)

Description copied from interface: DataStore

Returns the number of key-value pairs for the given query passed in the ValueLoadContext.

Specified by:

getCount in interface DataStore

Parameters:

context - defines the query

Returns:

number of key-value pairs in the data store

loadOne

@Nullable
protected abstract Object loadOne(LoadContext<?> context)

loadAll

protected abstract List<Object> loadAll(LoadContext<?> context)

countAll

protected abstract long countAll(LoadContext<?> context)

saveAll

protected abstract Set<Object> saveAll(SaveContext context)

deleteAll

protected abstract Set<Object> deleteAll(SaveContext context)

loadAllValues

protected abstract List<Object> loadAllValues(ValueLoadContext context)

countAllValues

protected abstract long countAllValues(ValueLoadContext context)

beginLoadTransaction

protected abstract Object beginLoadTransaction(boolean joinTransaction)

beginSaveTransaction

protected abstract Object beginSaveTransaction(boolean joinTransaction)

commitTransaction

protected abstract void commitTransaction(Object transaction)

rollbackTransaction

protected abstract void rollbackTransaction(Object transaction)

getTransactionContextState

protected abstract AbstractDataStore.TransactionContextState getTransactionContextState(boolean isJoinTransaction)

Invoked after beginLoadTransaction(boolean).
Override this method to create AbstractDataStore.TransactionContextState implementation and store required data in it.

beforeLoadTransactionCommit

protected void beforeLoadTransactionCommit(LoadContext<?> context,
 Collection<Object> entities,
 AbstractDataStore.TransactionContextState transactionContextState)

beforeSaveTransactionCommit

protected void beforeSaveTransactionCommit(SaveContext context,
 Collection<Object> savedEntities,
 Collection<Object> removedEntities)

beforeSaveTransactionRollback

protected void beforeSaveTransactionRollback(SaveContext context)

registerInterceptor

public void registerInterceptor(DataStoreEventListener listener)

fireEvent

protected <T extends BaseDataStoreEvent> void fireEvent(T event)

loadListByBatches

protected List<Object> loadListByBatches(LoadContext<?> context,
 int actualSize,
 EventSharedState eventState)

checkAndReorderLoadedEntities

protected List<Object> checkAndReorderLoadedEntities(LoadContext<?> context,
 List<Object> entities)

loadAllAfterSave

protected Set<Object> loadAllAfterSave(SaveContext context,
 Set<Object> savedEntities)

getFetchPlanForSave

protected FetchPlan getFetchPlanForSave(Map<Object,FetchPlan> fetchPlans,
 Object entity)

copyNonPersistentAttributes

protected void copyNonPersistentAttributes(Object source,
 Object destination)