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Hibernate definition of the Java Persistence 2.0 (JSR 317) API.
// $Id: $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence.metamodel;
/**
* Instances of the type SingularAttribute
represents persistent
* single-valued properties or fields.
*
* @param The type containing the represented attribute
* @param The type of the represented attribute
* @since Java Persistence 2.0
*/
public interface SingularAttribute extends Attribute, Bindable {
/**
* Is the attribute an id attribute. This method will return
* true if the attribute is an attribute that corresponds to
* a simple id, an embedded id, or an attribute of an id class.
*
* @return boolean indicating whether the attribute is an id
*/
boolean isId();
/**
* Is the attribute a version attribute.
*
* @return boolean indicating whether the attribute is
* a version attribute
*/
boolean isVersion();
/**
* Can the attribute be null.
*
* @return boolean indicating whether the attribute can
* be null
*/
boolean isOptional();
/**
* Return the type that represents the type of the attribute.
*
* @return type of attribute
*/
Type getType();
}