net.java.ao.schema

Annotation Type Default

@Retention(value=RUNTIME)
@Target(value=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 and Description
String	value Contains the database-agnostic representation of the default value for the corresponding field.

Element Detail

value

public abstract 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.