Package org.eclipse.emf.cdo.server.db.evolution

Enum Class IModelEvolutionSupport.Trigger

java.lang.Object
java.lang.Enum<IModelEvolutionSupport.Trigger>
org.eclipse.emf.cdo.server.db.evolution.IModelEvolutionSupport.Trigger
All Implemented Interfaces:
Serializable, Comparable<IModelEvolutionSupport.Trigger>, java.lang.constant.Constable
Enclosing interface:
IModelEvolutionSupport
public static enum IModelEvolutionSupport.Trigger extends Enum<IModelEvolutionSupport.Trigger>
The triggers for model evolution.

There are two triggers:

  • ActivatingStore: Triggered when the DB store is being activated by the IRepository. This is the main trigger for model evolution. It only occurs when the store is restarted, i.e., not when the store is activated for the first time.
  • ActivatedRepository: Triggered when the IRepository has been fully activated. This trigger exists mainly for special purposes, e.g., to export repository models before the schema is upgraded.
Author:
Eike Stepper

  • Enum Constant Details

    • ActivatingStore

      public static final IModelEvolutionSupport.Trigger ActivatingStore
      Trigger when the DB store is being activated by the IRepository. This is the main trigger for model evolution. It only occurs when the store is restarted, i.e., not when the store is activated for the first time.

      When this trigger occurs, the DB store is fully initialized, but not yet activated. The repository is in the process of being activated, but not yet activated. It is mostly unavailable at this point.

    • ActivatedRepository

      public static final IModelEvolutionSupport.Trigger ActivatedRepository
      Trigger when the IRepository has been fully activated. This trigger exists mainly for special purposes, e.g., to export repository models before the schema is upgraded.

      When this trigger occurs, both the DB store and the repository are fully activated and available.

  • Method Details

    • values

      public static IModelEvolutionSupport.Trigger[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static IModelEvolutionSupport.Trigger valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum class has no constant with the specified name
      NullPointerException - if the argument is null