Package io.jmix.core.impl

Class NoopDataStore

java.lang.Object

io.jmix.core.impl.NoopDataStore

All Implemented Interfaces:

DataStore

@Component("core_NoopDataStore")
@Scope("prototype")
public class NoopDataStore
extends Object
implements DataStore

Empty implementation of the DataStore interface. DataManager routes here non-JPA entities that are not explicitly associated with any data store.

Field Summary

Fields

Modifier and Type	Field	Description
protected String	name

Constructor Summary

Constructors

Constructor	Description
NoopDataStore()

Method Summary

Modifier and Type	Method	Description
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.
String	getName()	This data store instance name with which it is registered in Stores.
Object	load(LoadContext<?> context)	Loads a single entity instance.
List<Object>	loadList(LoadContext<?> context)	Loads collection of entity instances.
List<KeyValueEntity>	loadValues(ValueLoadContext context)	Loads list of key-value pairs.
Set<?>	save(SaveContext context)	Saves a collection of entity instances.
void	setName(String name)	Sets this data store instance name with which it is registered in Stores.

Methods inherited from class java.lang.Object

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

Field Details

name

protected String name

Constructor Details

NoopDataStore

public NoopDataStore()

Method Details

getName

public String getName()

Description copied from interface: DataStore

This data store instance name with which it is registered in Stores.

Specified by:

getName in interface DataStore

setName

public void setName(String name)

Description copied from interface: DataStore

Sets this data store instance name with which it is registered in Stores.

Specified by:

setName in interface DataStore

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