Hibernate--Query

public interface Query

An object-oriented representation of a Hibernate query. A Query instance is obtained by calling Session.createQuery(). This interface exposes some extra functionality beyond that provided by Session.iterate() andSession.find():

• a particular page of the result set may be selected by calling setMaxResults(), setFirstResult()
• named query parameters may be used
• the results may be returned as an instance of ScrollableResults

Named query parameters are tokens of the form :name in the query string. A value is bound to the integer parameter :foo by calling

setParameter("foo", foo, Hibernate.INTEGER);

for example. A name may appear multiple times in the query string.

JDBC-style ? parameters are also supported. To bind a value to a JDBC-style parameter use a set method that accepts an int positional argument (numbered from zero, contrary to JDBC).

You may not mix and match JDBC-style parameters and named parameters in the same query.

Queries are executed by calling list(), scroll() or iterate(). A query may be re-executed by subsequent invocations. Its lifespan is, however, bounded by the lifespan of the Session that created it.