Package org.springframework.data.jpa.util

Class JpaMetamodel

java.lang.Object

org.springframework.data.jpa.util.JpaMetamodel

public class JpaMetamodel
extends Object

Wrapper around the JPA Metamodel to be able to apply some fixes against bugs in provider implementations.

Author:

Oliver Gierke, Mark Paluch, Sylvère Richard

Method Summary

Modifier and Type	Method	Description
boolean	isJpaManaged(Class<?> type)	Returns whether the given type is managed by the backing JPA Metamodel.
boolean	isMappedType(Class<?> entity)	Returns whether the given type is considered a mapped type, i.e. an actually JPA persisted entity, mapped superclass or native JPA embeddable.
boolean	isSingleIdAttribute(Class<?> entity, String name, Class<?> attributeType)	Returns whether the attribute of given name and type is the single identifier attribute of the given entity.
static JpaMetamodel	of(jakarta.persistence.metamodel.Metamodel metamodel)

Methods inherited from class java.lang.Object

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

Method Details

of

public static JpaMetamodel of(jakarta.persistence.metamodel.Metamodel metamodel)

isJpaManaged

public boolean isJpaManaged(Class<?> type)

Returns whether the given type is managed by the backing JPA Metamodel.

Parameters:

type - must not be null.

Returns:

isSingleIdAttribute

public boolean isSingleIdAttribute(Class<?> entity,
 String name,
 Class<?> attributeType)

Returns whether the attribute of given name and type is the single identifier attribute of the given entity.

Parameters:

entity - must not be null.

name - must not be null.

attributeType - must not be null.

Returns:

isMappedType

public boolean isMappedType(Class<?> entity)

Returns whether the given type is considered a mapped type, i.e. an actually JPA persisted entity, mapped superclass or native JPA embeddable.

Parameters:

entity - must not be null.

Returns: