| java.lang.Object | |
| ↳ | org.hibernate.engine.ForeignKeys |
Class Overview
Algorithms related to foreign key constraint transparency
Summary
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| ForeignKeys.Nullifier | |||||||||||
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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.
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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.
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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.
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Public Methods
public static Serializable getEntityIdentifierIfNotUnsaved (String entityName, Object object, SessionImplementor session)
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).
Throws
| HibernateException |
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public static boolean isNotTransient (String entityName, Object entity, Boolean assumed, 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.
Throws
| HibernateException |
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public static boolean isTransient (String entityName, Object entity, Boolean assumed, 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.
Throws
| HibernateException |
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