Class ToOneRelationAdapter

java.lang.Object

ch.tocco.nice2.persist.core.api.entity.AbstractEntityList

ch.tocco.nice2.persist.core.impl.hibernate.pojo.relation.AbstractRelationAdapter

ch.tocco.nice2.persist.core.impl.hibernate.pojo.relation.ToOneRelationAdapter

All Implemented Interfaces:

EntityList, Relation, Iterable<Entity>

public class ToOneRelationAdapter
extends AbstractRelationAdapter

Maps a to-one hibernate collection to the Relation interface

Nested Class Summary

Nested classes/interfaces inherited from class AbstractEntityList

AbstractEntityList.SimpleIterator

Nested classes/interfaces inherited from interface EntityList

EntityList.Filter

Field Summary

Fields inherited from class AbstractRelationAdapter

entityFacadeListenerManager, relationInterceptor, relationModel, sourceEntity

Constructor Summary

Constructors

Constructor	Description
ToOneRelationAdapter(Entity sourceEntity, RelationModel relationModel, EntityFacadeListenerManager entityFacadeListenerManager, EntityInterceptor entityInterceptor, PropertyAccessorService propertyAccessorService)

Method Summary

Modifier and Type	Method	Description
void	clear()	Removes all entities in this relation.
@Nullable Entity	get()	Get the current single target entity of this relation.
@Nullable Entity	get(int index, boolean eager)	Get the entity at the specified index.
RelationInterceptor	getInnerInterceptor()
void	set(@Nullable Entity entity)	Set the relation's entities to the specified single entity.
void	set(Iterable<Entity> entities)	Creates an intersection of the currently linked ones and the given ones, and then calls Relation.remove(Entity) and Relation.add(Entity) in a loop.
protected void	setInverseRelation(@Nullable Entity oldValue, @Nullable Entity newValue)
protected void	setValue(@Nullable Entity entity)
int	size()	Get the number of entities this list contains.

Methods inherited from class AbstractRelationAdapter

add, expect, expectAtLeast, expectAtMost, fireRelationChangingEvent, getKey, getKeys, getManager, getModel, getPageCount, getPageSize, getRelationModel, getSource, indexOf, remove, setPageSize, unwrap, verifyTransactionIsRunning

Methods inherited from class AbstractEntityList

contains, get, get, get, isEmpty, iterator, toList, toList

Methods inherited from class Object

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

Methods inherited from interface EntityList

contains, doWithSingleResult, doWithSingleResultOr, expectOr, get, getFirstEntity, getOnlyResult, getOptionalOnlyResult, getOptionalOnlyResult, isEmpty, requireFirstEntity, spliterator, stream, toList, toList

Methods inherited from interface Iterable

forEach, iterator

Methods inherited from interface Relation

expectAtMostOrThrow, expectOrThrow, get, get

Constructor Details

ToOneRelationAdapter

public ToOneRelationAdapter(Entity sourceEntity,
 RelationModel relationModel,
 EntityFacadeListenerManager entityFacadeListenerManager,
 EntityInterceptor entityInterceptor,
 PropertyAccessorService propertyAccessorService)

Method Details

getInnerInterceptor

public RelationInterceptor getInnerInterceptor()

Specified by:

getInnerInterceptor in class AbstractRelationAdapter

setValue

protected void setValue(@Nullable
 @Nullable Entity entity)

setInverseRelation

protected void setInverseRelation(@Nullable
 @Nullable Entity oldValue,
 @Nullable
 @Nullable Entity newValue)

size

public int size()

Description copied from interface: EntityList

Get the number of entities this list contains.

Returns:

The number of entities.

get

@Nullable
public @Nullable Entity get()

Description copied from interface: Relation

Get the current single target entity of this relation. This method may only be called for relations to a single entity (n-1).

Specified by:

get in interface Relation

Overrides:

get in class AbstractRelationAdapter

Returns:

The current single target entity potentially in unusable state, or null.

get

@Nullable
public @Nullable Entity get(int index,
 boolean eager)

Description copied from interface: EntityList

Get the entity at the specified index.

Parameters:

index - The index.

eager - true, if a page should be eagerly loaded, if the entity's state is hollow, false otherwise.

Returns:

The entity at the specified index potentially in unusable state, or null.

set

public void set(@Nullable
 @Nullable Entity entity)

Description copied from interface: Relation

Set the relation's entities to the specified single entity. Any other entities will be removed. This method may only be called for relations to a single entity (n-1).

NOTE: This calls Relation.remove(Entity) and Relation.add(Entity) internally. That's also why the interceptor does not have this.

Specified by:

set in interface Relation

Overrides:

set in class AbstractRelationAdapter

Parameters:

entity - The entity to be set, may be in state conception.

set

public void set(Iterable<Entity> entities)

Description copied from interface: Relation

Creates an intersection of the currently linked ones and the given ones, and then calls Relation.remove(Entity) and Relation.add(Entity) in a loop.

Parameters:

entities - The list of entities that will be the only linked ones.

clear

public void clear()

Description copied from interface: Relation

Removes all entities in this relation. Does the same as calling remove() for all linked entities.