What does Hibernate map a boolean datatype to when using an Oracle database by default?

Question

By default if I create a field in an entity like:

@NotNull
boolean myBoolean;

And I let Hibernate auto-create my tables. What Oracle data t

Answer 1

This is what you really need

Java POJO:

//@Type(type="true_false") //not working for '1' and '0' in NUMERIC(1) field
@Type(type= "org.hibernate.type.NumericBooleanType")
@NotNull(message="NOT_NULL")
@Column(name = "IS_DELEGATION", nullable = false)
private Boolean isDelegation;

Oracle DDL

alter table agent add (is_delegation number(1) default 0 not null);

As stated in Hibernate docu