Package javax.jdo.annotations

Annotation Type PrimaryKey

  • @Target({TYPE,FIELD,METHOD})
@Retention(RUNTIME)
public @interface PrimaryKey
    Annotation on a member to define it as a primary key member of a class or persistent interface using application identity. Also used to define the primary key columns of a secondary table. Corresponds to the xml element "primary-key".
    Since:
    2.1
    Version:
    2.1

    • Optional Element Summary

      Optional Elements 
      Modifier and Type Optional Element Description
      String column
      Name of the column to use for the primary key
      Column[] columns
      The column(s) for the primary key
      Extension[] extensions
      Vendor extensions.
      String name
      Name of the primary key constraint

    • Element Detail

      • name

        String name
        Name of the primary key constraint
        Returns:
        the name of the primary key constraint
        Default:
        ""

      • column

        String column
        Name of the column to use for the primary key
        Returns:
        the name of the column to use for the primary key
        Default:
        ""

      • columns

        Column[] columns
        The column(s) for the primary key
        Returns:
        the column(s) for the primary key
        Default:
        {}

      • extensions

        Extension[] extensions
        Vendor extensions.
        Returns:
        the vendor extensions
        Default:
        {}