Package javax.persistence

Enum FlushModeType

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<FlushModeType>
    public enum FlushModeType
extends java.lang.Enum<FlushModeType>
    Flush mode setting.

    When queries are executed within a transaction, if FlushModeType.AUTO is set on the Query or TypedQuery object, or if the flush mode setting for the persistence context is AUTO (the default) and a flush mode setting has not been specified for the Query or TypedQuery object, the persistence provider is responsible for ensuring that all updates to the state of all entities in the persistence context which could potentially affect the result of the query are visible to the processing of the query. The persistence provider implementation may achieve this by flushing those entities to the database or by some other means.

    If FlushModeType.COMMIT is set, the effect of updates made to entities in the persistence context upon queries is unspecified.

    If there is no transaction active or the persistence context is not joined to the current transaction, the persistence provider must not flush to the database.

    Since:
    1.0

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      AUTO
      (Default) Flushing to occur at query execution.
      COMMIT
      Flushing to occur at transaction commit.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static FlushModeType valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static FlushModeType[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Enum Constant Detail

      • COMMIT

        public static final FlushModeType COMMIT
        Flushing to occur at transaction commit. The provider may flush at other times, but is not required to.

      • AUTO

        public static final FlushModeType AUTO
        (Default) Flushing to occur at query execution.

    • Method Detail

      • values

        public static FlushModeType[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (FlushModeType c : FlushModeType.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static FlushModeType valueOf​(java.lang.String name)
        Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null