NPersistence Reference Guide
Defines a primary key generator that may be referenced by name when a generator element is specified for the GeneratedValue annotation.

A table generator may be specified on the entity class or on the primary key field or property.

The scope of the generator name is global to the persistence unit (across all generator types).

Examples

CopyC#
Example 1:

[Entity] public class Employee {
    ...
    [TableGenerator(
        name="empGen", 
        table="ID_GEN", 
        pkColumnName="GEN_KEY", 
        valueColumnName="GEN_VALUE", 
        pkColumnValue="EMP_ID", 
        allocationSize=1)]
    [Id]
    [GeneratedValue(strategy=TABLE, generator="empGen")]
    int id;
    ...
}

Example 2:

[Entity] public class Address {
    ...
    [TableGenerator(
        name="addressGen", 
        table="ID_GEN", 
        pkColumnName="GEN_KEY", 
        valueColumnName="GEN_VALUE", 
        pkColumnValue="ADDR_ID")]]
    [Id]
    [GeneratedValue(strategy=TABLE, generator="addressGen")]
    int id;
    ...
}

Namespace: NPersistence
Assembly: NPersistence (in NPersistence.dll) Version: 2.0.0.0 (2.0.0.0)

Syntax

   
 C# 
public sealed class TableGenerator : Attribute

Members

         
 All Members  Constructors   Fields  
 Public

 Protected
 Instance

 Static 
 Declared

 Inherited
 XNA Framework Only 

 .NET Compact Framework Only 

 MemberDescription
TableGenerator()()()()
Initializes a new instance of the TableGenerator class
AllocationSize
(Optional) The amount to increment by when allocating id numbers from the generator
Catalog
(Optional) The catalog of the table. Defaults to the default catalog
InitialValue
(Optional) The initial value to be used to initialize the column that stores the last value generated
Name
(Required) A unique generator name that can be referenced by one or more classes to be the generator for id values
PkColumnName
(Optional) Name of the primary key column in the table. Defaults to a provider-chosen name
PkColumnValue
(Optional) The primary key value in the generator table that distinguishes this set of generated values from others that may be stored in the table. Defaults to a provider-chosen value to store in the primary key column of the generator table
Schema
(Optional) The schema of the table. Defaults to the default schema for user
Table
(Optional) Name of table that stores the generated id values. Defaults to a name chosen by persistence provider
ValueColumnName
(Optional) Name of the column that stores the last value generated. Defaults to a provider-chosen name

Inheritance Hierarchy

System..::..Object
  System..::..Attribute
    NPersistence..::..TableGenerator

See Also