Package net.java.ao.schema

Annotation Interface Default

@Retention(RUNTIME) @Target(METHOD) public @interface Default

Specifies a default value for the database field corresponding to the tagged method. This default value will be used at INSERT, usually automatically by the database. If the database does not provide a DEFAULT modifier for fields, the value will be injected into any INSERT statement, ensuring it is indeed the default value for the field in question.

Do NOT use an empty string as a default value, as this is not supported by some databases and will cause SQLExceptions (e.g. MS SQL)

Author:
Daniel Spiewak

  • Required Element Summary

    Required Elements
    Modifier and Type
    Required Element
    Description
    String
    value
    Contains the database-agnostic representation of the default value for the corresponding field.

  • Element Details

    • value

      String value
      Contains the database-agnostic representation of the default value for the corresponding field. The conversion between this String and the appropriate value is handled by the net.java.ao.types.TypeInfo#defaultParseValue(String) method. Thus, even default values for custom types are supported.