I am using Hibernate Annotations (with JBoss 4.0.4.GA), and would like to model a boolean property mapped to a 'Y'/'N' database column. I see the YesNoType or even UserType, but it is not clear to me how to configure this, since all of the mapping is in annotations rather than mapping xml.

Hints would be appreciated.

Hibernate version:3.2.0.CR1
Name and version of the database you are using: Oracle 9

If you're using JPA, I'd recommend spelling out the fully qualified annotation name for the Hibernate Type annotation, as follows:

@Column(name = "my_flag") // regular JPA annotation
@org.hibernate.annotations.Type(type = "yes_no")
private Boolean myFlag;