Package org.hibernate.sql.results.graph.entity.internal

Class DiscriminatedEntityInitializer

java.lang.Object

org.hibernate.sql.results.graph.internal.AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

org.hibernate.sql.results.graph.entity.internal.DiscriminatedEntityInitializer

All Implemented Interfaces:

EntityInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>, Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>, InitializerParent<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

public class DiscriminatedEntityInitializer
extends AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>
implements EntityInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

Initializer for discriminated mappings.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData

Nested classes/interfaces inherited from interface org.hibernate.sql.results.graph.Initializer

Initializer.State

Field Summary

Fields

Modifier and Type	Field	Description
protected final InitializerParent<?>	parent

Fields inherited from class org.hibernate.sql.results.graph.internal.AbstractInitializer

initializerId

Fields inherited from interface org.hibernate.sql.results.graph.Initializer

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
DiscriminatedEntityInitializer(InitializerParent<?> parent, DiscriminatedAssociationModelPart fetchedPart, NavigablePath fetchedNavigable, Fetch discriminatorFetch, Fetch keyFetch, boolean eager, boolean resultInitializer, AssemblerCreationState creationState)

Method Summary

Modifier and Type	Method	Description
protected InitializerData	createInitializerData(RowProcessingState rowProcessingState)
protected void	forEachSubInitializer(BiConsumer<Initializer<?>,RowProcessingState> consumer, InitializerData data)
EntityPersister	getConcreteDescriptor(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)
EntityPersister	getEntityDescriptor()	Get the descriptor for the type of entity being initialized
@Nullable Object	getEntityIdentifier(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)
ModelPart	getInitializedPart()
NavigablePath	getNavigablePath()
@Nullable InitializerParent<?>	getParent()	Returns the parent Initializer or null if this is a result initializer.
boolean	hasLazySubInitializers()	Indicates whether this initializer has sub-initializers which are lazy.
void	initializeInstance(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 3 - Initialize the state of the instance resolved in Initializer.resolveInstance(Data) from the current row values.
void	initializeInstanceFromParent(Object parentInstance, DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 3.1 - Initialize the state of the instance as extracted from the given parentInstance.
boolean	isEager()	Indicates whether calling resolve is needed when the object for this initializer is initialized already.
boolean	isPartOfKey()	Indicates whether this initializer is part of a key i.e.
boolean	isResultInitializer()	Indicates if this is a result or fetch initializer.
void	resolveFromPreviousRow(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 1.2 - Special variant of Initializer.resolveKey(InitializerData) that allows the reuse of key value and instance value from the previous row.
void	resolveInstance(Object instance, DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 2.2 - Use the given instance as resolved instance for this initializer.
void	resolveInstance(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 2.1 - Using the key resolved in Initializer.resolveKey(Data), resolve the instance (of the thing initialized) to use for the current row.
void	resolveKey(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)	Step 1.1 - Resolve the key value for this initializer for the current row and then recurse to the sub-initializers.
void	resolveState(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)
String	toString()

Methods inherited from class org.hibernate.sql.results.graph.internal.AbstractInitializer

finishUpRow, getData, startLoading

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.sql.results.graph.entity.EntityInitializer

asEntityInitializer, getConcreteDescriptor, getEntityIdentifier, getTargetInstance, getTargetInstance, isEntityInitializer, resetResolvedEntityRegistrations, resolveEntityKeyOnly

Methods inherited from interface org.hibernate.sql.results.graph.Initializer

asCollectionInitializer, asEmbeddableInitializer, endLoading, findOwningEntityInitializer, finishUpRow, getData, getResolvedInstance, getResolvedInstance, initializeInstance, initializeInstanceFromParent, isCollectionInitializer, isEmbeddableInitializer, isLazyCapable, resolveFromPreviousRow, resolveInstance, resolveInstance, resolveKey, resolveState, startLoading

Field Details

parent

protected final InitializerParent<?> parent

Constructor Details

DiscriminatedEntityInitializer

public DiscriminatedEntityInitializer(InitializerParent<?> parent,
 DiscriminatedAssociationModelPart fetchedPart,
 NavigablePath fetchedNavigable,
 Fetch discriminatorFetch,
 Fetch keyFetch,
 boolean eager,
 boolean resultInitializer,
 AssemblerCreationState creationState)

Method Details

createInitializerData

protected InitializerData createInitializerData(RowProcessingState rowProcessingState)

Specified by:

createInitializerData in class AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getParent

public @Nullable InitializerParent<?> getParent()

Description copied from interface: Initializer

Returns the parent Initializer or null if this is a result initializer.

Specified by:

getParent in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getInitializedPart

public ModelPart getInitializedPart()

Specified by:

getInitializedPart in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getNavigablePath

public NavigablePath getNavigablePath()

Specified by:

getNavigablePath in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

resolveKey

public void resolveKey(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 1.1 - Resolve the key value for this initializer for the current row and then recurse to the sub-initializers.

After this point, the initializer knows whether further processing is necessary for the current row i.e. if the object is missing.

Specified by:

resolveKey in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

Overrides:

resolveKey in class AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

resolveState

public void resolveState(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Specified by:

resolveState in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

resolveFromPreviousRow

public void resolveFromPreviousRow(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 1.2 - Special variant of Initializer.resolveKey(InitializerData) that allows the reuse of key value and instance value from the previous row.

Specified by:

resolveFromPreviousRow in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

resolveInstance

public void resolveInstance(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 2.1 - Using the key resolved in Initializer.resolveKey(Data), resolve the instance (of the thing initialized) to use for the current row.

After this point, the initializer knows the entity/collection/component instance for the current row based on the resolved key. If the resolving was successful, Initializer.getResolvedInstance(RowProcessingState) will return that instance.

Specified by:

resolveInstance in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

resolveInstance

public void resolveInstance(Object instance,
 DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 2.2 - Use the given instance as resolved instance for this initializer. Initializers are supposed to recursively call this method for sub-initializers.

This alternative initialization protocol is used when a parent instance was already part of the persistence context.

Specified by:

resolveInstance in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

initializeInstance

public void initializeInstance(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 3 - Initialize the state of the instance resolved in Initializer.resolveInstance(Data) from the current row values.

All resolved state for the current row is injected into the resolved instance

Specified by:

initializeInstance in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

Overrides:

initializeInstance in class AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

initializeInstanceFromParent

public void initializeInstanceFromParent(Object parentInstance,
 DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Description copied from interface: Initializer

Step 3.1 - Initialize the state of the instance as extracted from the given parentInstance. Extraction can be done with the Initializer.getInitializedPart(). Initializers are supposed to recursively call this method for sub-initializers.

This alternative initialization protocol is used for shallow query cache hits, in which case there is no data available in the JdbcValuesCacheHit to initialize potentially lazy associations.

Specified by:

initializeInstanceFromParent in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

forEachSubInitializer

protected void forEachSubInitializer(BiConsumer<Initializer<?>,RowProcessingState> consumer,
 InitializerData data)

Specified by:

forEachSubInitializer in class AbstractInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getEntityDescriptor

public EntityPersister getEntityDescriptor()

Description copied from interface: EntityInitializer

Get the descriptor for the type of entity being initialized

Specified by:

getEntityDescriptor in interface EntityInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getConcreteDescriptor

public EntityPersister getConcreteDescriptor(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Specified by:

getConcreteDescriptor in interface EntityInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

getEntityIdentifier

public @Nullable Object getEntityIdentifier(DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData data)

Specified by:

getEntityIdentifier in interface EntityInitializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

isPartOfKey

public boolean isPartOfKey()

Description copied from interface: Initializer

Indicates whether this initializer is part of a key i.e. entity identifier, foreign key or collection key.

Specified by:

isPartOfKey in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

isEager

public boolean isEager()

Description copied from interface: Initializer

Indicates whether calling resolve is needed when the object for this initializer is initialized already.

Specified by:

isEager in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

hasLazySubInitializers

public boolean hasLazySubInitializers()

Description copied from interface: Initializer

Indicates whether this initializer has sub-initializers which are lazy.

Specified by:

hasLazySubInitializers in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

isResultInitializer

public boolean isResultInitializer()

Description copied from interface: Initializer

Indicates if this is a result or fetch initializer.

Specified by:

isResultInitializer in interface Initializer<DiscriminatedEntityInitializer.DiscriminatedEntityInitializerData>

toString

public String toString()

Overrides:

toString in class Object