Class ForeignKeys
- java.lang.Object
-
- org.hibernate.reactive.engine.impl.ForeignKeys
-
public final class ForeignKeys extends java.lang.Object
Algorithms related to foreign key constraint transparency
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description static class
ForeignKeys.Nullifier
Delegate for handling nullifying ("null"ing-out) non-cascaded associations
-
Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.util.concurrent.CompletionStage<org.hibernate.engine.internal.NonNullableTransientDependencies>
findNonNullableTransientEntities(java.lang.String entityName, java.lang.Object entity, java.lang.Object[] values, boolean isEarlyInsert, org.hibernate.engine.spi.SharedSessionContractImplementor session)
static java.util.concurrent.CompletionStage<java.lang.Object>
getEntityIdentifierIfNotUnsaved(java.lang.String entityName, java.lang.Object object, org.hibernate.engine.spi.SessionImplementor session)
Return the identifier of the persistent or transient object, or throw an exception if the instance is "unsaved"static java.util.concurrent.CompletionStage<java.lang.Boolean>
isNotTransient(java.lang.String entityName, java.lang.Object entity, java.lang.Boolean assumed, org.hibernate.engine.spi.SessionImplementor session)
Is this instance persistent or detached?static java.util.concurrent.CompletionStage<java.lang.Boolean>
isTransient(java.lang.String entityName, java.lang.Object entity, java.lang.Boolean assumed, org.hibernate.engine.spi.SessionImplementor session)
Is this instance, which we know is not persistent, actually transient?
-
-
-
Method Detail
-
isNotTransient
public static java.util.concurrent.CompletionStage<java.lang.Boolean> isNotTransient(java.lang.String entityName, java.lang.Object entity, java.lang.Boolean assumed, org.hibernate.engine.spi.SessionImplementor session)
Is this instance persistent or detached? If assumed is non-null, don't hit the database to make the determination, instead assume that value; the client code must be prepared to "recover" in the case that this assumed result is incorrect.- Parameters:
entityName
- The name of the entityentity
- The entity instanceassumed
- The assumed return value, if avoiding database hit is desiredsession
- The session- Returns:
true
if the given entity is not transient (meaning it is either detached/persistent)
-
isTransient
public static java.util.concurrent.CompletionStage<java.lang.Boolean> isTransient(java.lang.String entityName, java.lang.Object entity, java.lang.Boolean assumed, org.hibernate.engine.spi.SessionImplementor session)
Is this instance, which we know is not persistent, actually transient? If assumed is non-null, don't hit the database to make the determination, instead assume that value; the client code must be prepared to "recover" in the case that this assumed result is incorrect.- Parameters:
entityName
- The name of the entityentity
- The entity instanceassumed
- The assumed return value, if avoiding database hit is desiredsession
- The session- Returns:
true
if the given entity is transient (unsaved)
-
getEntityIdentifierIfNotUnsaved
public static java.util.concurrent.CompletionStage<java.lang.Object> getEntityIdentifierIfNotUnsaved(java.lang.String entityName, java.lang.Object object, org.hibernate.engine.spi.SessionImplementor session) throws org.hibernate.TransientObjectException
Return the identifier of the persistent or transient object, or throw an exception if the instance is "unsaved" Used by OneToOneType and ManyToOneType to determine what id value should be used for an object that may or may not be associated with the session. This does a "best guess" using any/all info available to use (not just the EntityEntry).- Parameters:
entityName
- The name of the entityobject
- The entity instancesession
- The session- Returns:
- The identifier
- Throws:
org.hibernate.TransientObjectException
- if the entity is transient (does not yet have an identifier)
-
findNonNullableTransientEntities
public static java.util.concurrent.CompletionStage<org.hibernate.engine.internal.NonNullableTransientDependencies> findNonNullableTransientEntities(java.lang.String entityName, java.lang.Object entity, java.lang.Object[] values, boolean isEarlyInsert, org.hibernate.engine.spi.SharedSessionContractImplementor session)
-
-