org.hibernate.annotations

Annotation Type ColumnTransformer

@Target(value={FIELD,METHOD})
 @Retention(value=RUNTIME)
public @interface ColumnTransformer

Custom SQL expression used to read the value from and write a value to a column. Use for direct object loading/saving as well as queries. The write expression must contain exactly one '?' placeholder for the value. For example: read="decrypt(credit_card_num)" write="encrypt(?)"

Author:

Emmanuel Bernard

See Also:

ColumnTransformers

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	forColumn (Logical) column name for which the expression is used.
String	read Custom SQL expression used to read from the column.
String	write Custom SQL expression used to write to the column.

Element Detail

forColumn

public abstract String forColumn

(Logical) column name for which the expression is used. This can be left out if the property is bound to a single column

Default:

""

read

public abstract String read

Custom SQL expression used to read from the column.

Default:

""

write

public abstract String write

Custom SQL expression used to write to the column. The write expression must contain exactly one '?' placeholder for the value.

Default:

""