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Editorial Team
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Asked: 2026-05-16T21:48:32+00:00

Using Hibernate 3.5.1 and MSSQL 2008 Hi trying to implement the typical DateCreated and

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Using Hibernate 3.5.1 and MSSQL 2008

Hi trying to implement the typical DateCreated and DateModified columns. The issue I have is that the time must be set from the DB not the application.

For DateCreated I can set the property to generated = always and set a default constraint (yes that reads right damn MS) on MS SQL 2008 to a default value of GetDate()

How would I go about it for DateModified?

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  1. Editorial Team

    For DateCreated I can set the property to generated = always and set a default constraint (yes that reads right damn MS) on MS SQL 2008 to a default value of GetDate()

    Well, you should actually use generated = insert for the creation date, it is not supposed to change upon subsequent updates and this will save an additional select for this column during updates.

    How would I go about it for DateModified?

    And this is where you should use generated = always (and a trigger on the database side).

    Here is what the reference documentation writes about them:

    5.6. Generated properties

    Generated properties are properties
    that have their values generated by
    the database. Typically, Hibernate
    applications needed to refresh objects
    that contain any properties for which
    the database was generating values.
    Marking properties as generated,
    however, lets the application delegate
    this responsibility to Hibernate. When
    Hibernate issues an SQL INSERT or
    UPDATE for an entity that has defined
    generated properties, it immediately
    issues a select afterwards to retrieve
    the generated values.

    Properties marked as generated must
    additionally be non-insertable and
    non-updateable. Only versions,
    timestamps, and simple properties, can
    be marked as generated.

    • never: (the default): the given property value is not generated within
      the database.

    • insert: the given property value is generated on insert, but is not
      regenerated on subsequent updates.
      Properties like created-date fall into
      this category. Even though version and
      timestamp properties can be marked as
      generated, this option is not
      available.

    • always: the property value is generated both on insert and on
      update.

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