org.springframework.data.jpa.repository.support
Interface JpaEntityInformation<T,ID extends Serializable>

All Superinterfaces:

EntityInformation<T,ID>, EntityMetadata<T>, JpaEntityMetadata<T>

All Known Implementing Classes:

JpaEntityInformationSupport, JpaMetamodelEntityInformation, JpaPersistableEntityInformation

public interface JpaEntityInformation<T,ID extends Serializable>
extends EntityInformation<T,ID>, JpaEntityMetadata<T>

Extension of EntityInformation to capture additional JPA specific information about entities.

Author:

Oliver Gierke, Thomas Darimont

Method Summary

Object	getCompositeIdAttributeValue(Serializable id, String idAttribute) Extracts the value for the given id attribute from a composite id
javax.persistence.metamodel.SingularAttribute<? super T,?>	getIdAttribute() Returns the id attribute of the entity.
Iterable<String>	getIdAttributeNames() Returns the attribute names of the id attributes.
boolean	hasCompositeId() Returns true if the entity has a composite id.

Methods inherited from interface org.springframework.data.repository.core.EntityInformation

getId, getIdType, isNew

Methods inherited from interface org.springframework.data.jpa.repository.support.JpaEntityMetadata

getEntityName

Methods inherited from interface org.springframework.data.repository.core.EntityMetadata

getJavaType

Method Detail

getIdAttribute

javax.persistence.metamodel.SingularAttribute<? super T,?> getIdAttribute()

Returns the id attribute of the entity.

Returns:

hasCompositeId

boolean hasCompositeId()

Returns true if the entity has a composite id.

Returns:

getIdAttributeNames

Iterable<String> getIdAttributeNames()

Returns the attribute names of the id attributes. If the entity has a composite id, then all id attribute names are returned. If the entity has a single id attribute then this single attribute name is returned.

Returns:

getCompositeIdAttributeValue

Object getCompositeIdAttributeValue(Serializable id,
                                    String idAttribute)

Extracts the value for the given id attribute from a composite id

Parameters:

id -

idAttribute -

Returns: