com.haulmont.cuba.core.app

Class RdbmsStore

java.lang.Object

com.haulmont.cuba.core.app.RdbmsStore

All Implemented Interfaces:

DataStore

@Component(value="cuba_RdbmsStore")
 @Scope(value="prototype")
public class RdbmsStore
extends java.lang.Object
implements DataStore

INTERNAL. Implementation of the DataStore interface working with a relational database through ORM.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NAME

Constructor Summary

Constructors

Constructor and Description
RdbmsStore(java.lang.String storeName)

Method Summary

Modifier and Type	Method and Description
java.util.Set<Entity>	commit(CommitContext context) Commits a collection of new or detached entity instances to the storage.
long	getCount(LoadContext<? extends Entity> context) Returns the number of entity instances for the given query passed in the LoadContext.
<E extends Entity> E	load(LoadContext<E> context) Loads a single entity instance.
<E extends Entity> java.util.List<E>	loadList(LoadContext<E> context) Loads collection of entity instances.
java.util.List<KeyValueEntity>	loadValues(ValueLoadContext context) Loads list of key-value pairs.

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final java.lang.String NAME

See Also:

Constant Field Values

Constructor Detail

RdbmsStore

public RdbmsStore(java.lang.String storeName)

Method Detail

load

@Nullable
public <E extends Entity> E load(LoadContext<E> 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 <E extends Entity> java.util.List<E> loadList(LoadContext<E> 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<? extends Entity> 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

commit

public java.util.Set<Entity> commit(CommitContext context)

Description copied from interface: DataStore

Commits a collection of new or detached entity instances to the storage.

Specified by:

commit in interface DataStore

Returns:

set of committed instances

loadValues

public java.util.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