org.hibernate.loader.plan.build.internal.returns

Class EntityAttributeFetchImpl

java.lang.Object

org.hibernate.loader.plan.build.internal.returns.AbstractExpandingFetchSource

org.hibernate.loader.plan.build.internal.returns.AbstractEntityReference

org.hibernate.loader.plan.build.internal.returns.EntityAttributeFetchImpl

All Implemented Interfaces:

ExpandingFetchSource, AttributeFetch, EntityFetch, EntityReference, Fetch, FetchSource

public class EntityAttributeFetchImpl
extends AbstractEntityReference
implements EntityFetch

Author:

Steve Ebersole

Constructor Summary

Constructors

Constructor and Description
EntityAttributeFetchImpl(ExpandingFetchSource fetchSource, AssociationAttributeDefinition fetchedAttribute, FetchStrategy fetchStrategy, ExpandingEntityQuerySpace entityQuerySpace)

Method Summary

Modifier and Type	Method and Description
String	getAdditionalJoinConditions()
AttributeDefinition	getFetchedAttributeDefinition() Returns the AttributeDefinition for attribute being fetched.
EntityType	getFetchedType() Get the Hibernate Type that describes the fetched attribute as an EntityType.
FetchStrategy	getFetchStrategy() Gets the fetch strategy for this fetch.
FetchSource	getSource() Obtain the owner of this fetch.
boolean	isNullable() Is this fetch nullable?
String[]	toSqlSelectFragments(String alias) Generates the SQL select fragments for this fetch.
void	validateFetchPlan(FetchStrategy fetchStrategy, AttributeDefinition attributeDefinition) Is the asserted plan valid from this owner to a fetch?

Methods inherited from class org.hibernate.loader.plan.build.internal.returns.AbstractEntityReference

createCompositeAttributeFetch, getEntityPersister, getIdentifierDescription, resolveEntityReference

Methods inherited from class org.hibernate.loader.plan.build.internal.returns.AbstractExpandingFetchSource

buildAnyAttributeFetch, buildBidirectionalEntityReference, buildCollectionAttributeFetch, buildCompositeAttributeFetch, buildEntityAttributeFetch, expandingQuerySpace, getBidirectionalEntityReferences, getFetches, getPropertyPath, getQuerySpaces, getQuerySpaceUid

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.loader.plan.spi.Fetch

getPropertyPath

Methods inherited from interface org.hibernate.loader.plan.spi.EntityReference

getEntityPersister, getIdentifierDescription, getQuerySpaceUid

Methods inherited from interface org.hibernate.loader.plan.spi.FetchSource

getBidirectionalEntityReferences, getFetches, getPropertyPath, resolveEntityReference

Constructor Detail

EntityAttributeFetchImpl

public EntityAttributeFetchImpl(ExpandingFetchSource fetchSource,
                                AssociationAttributeDefinition fetchedAttribute,
                                FetchStrategy fetchStrategy,
                                ExpandingEntityQuerySpace entityQuerySpace)

Method Detail

getSource

public FetchSource getSource()

Description copied from interface: Fetch

Obtain the owner of this fetch.

Specified by:

getSource in interface Fetch

Returns:

The fetch owner.

getFetchStrategy

public FetchStrategy getFetchStrategy()

Description copied from interface: Fetch

Gets the fetch strategy for this fetch.

Specified by:

getFetchStrategy in interface Fetch

Returns:

the fetch strategy for this fetch.

getFetchedType

public EntityType getFetchedType()

Description copied from interface: EntityFetch

Get the Hibernate Type that describes the fetched attribute as an EntityType.

Specified by:

getFetchedType in interface EntityFetch

Specified by:

getFetchedType in interface Fetch

Returns:

The Type of the fetched attribute

isNullable

public boolean isNullable()

Description copied from interface: Fetch

Is this fetch nullable?

Specified by:

isNullable in interface Fetch

Returns:

true, if this fetch is nullable; false, otherwise.

getAdditionalJoinConditions

public String getAdditionalJoinConditions()

Specified by:

getAdditionalJoinConditions in interface Fetch

toSqlSelectFragments

public String[] toSqlSelectFragments(String alias)

Description copied from interface: Fetch

Generates the SQL select fragments for this fetch. A select fragment is the column and formula references.

Specified by:

toSqlSelectFragments in interface Fetch

Returns:

the select fragments

validateFetchPlan

public void validateFetchPlan(FetchStrategy fetchStrategy,
                              AttributeDefinition attributeDefinition)

Description copied from interface: ExpandingFetchSource

Is the asserted plan valid from this owner to a fetch?

Specified by:

validateFetchPlan in interface ExpandingFetchSource

Parameters:

fetchStrategy - The type of fetch to validate.

attributeDefinition - The attribute to be fetched.

getFetchedAttributeDefinition

public AttributeDefinition getFetchedAttributeDefinition()

Description copied from interface: AttributeFetch

Returns the AttributeDefinition for attribute being fetched.

Specified by:

getFetchedAttributeDefinition in interface AttributeFetch

Returns:

The fetched attribute definition.