//$Id: AbstractType.java 7793 2005-08-10 05:06:40Z oneovthafew $
package org.hibernate.type;
import java.io.Serializable;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Map;
import org.dom4j.Element;
import org.dom4j.Node;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.util.EqualsHelper;
/**
* Abstract superclass of the built in Type hierarchy.
* @author Gavin King
*/
public abstract class AbstractType implements Type {
public boolean isAssociationType() {
return false;
}
public boolean isCollectionType() {
return false;
}
public boolean isComponentType() {
return false;
}
public boolean isEntityType() {
return false;
}
public boolean isXMLElement() {
return false;
}
public int compare(Object x, Object y, EntityMode entityMode) {
return ( (Comparable) x ).compareTo(y);
}
public Serializable disassemble(Object value, SessionImplementor session, Object owner)
throws HibernateException {
if (value==null) {
return null;
}
else {
return (Serializable) deepCopy( value, session.getEntityMode(), session.getFactory() );
}
}
public Object assemble(Serializable cached, SessionImplementor session, Object owner)
throws HibernateException {
if ( cached==null ) {
return null;
}
else {
return deepCopy( cached, session.getEntityMode(), session.getFactory() );
}
}
public boolean isDirty(Object old, Object current, SessionImplementor session)
throws HibernateException {
return !isSame( old, current, session.getEntityMode() );
}
public Object hydrate(
ResultSet rs,
String[] names,
SessionImplementor session,
Object owner)
throws HibernateException, SQLException {
// TODO: this is very suboptimal for some subclasses (namely components),
// since it does not take advantage of two-phase-load
return nullSafeGet(rs, names, session, owner);
}
public Object resolve(Object value, SessionImplementor session, Object owner)
throws HibernateException {
return value;
}
public Object semiResolve(Object value, SessionImplementor session, Object owner)
throws HibernateException {
return value;
}
public boolean isAnyType() {
return false;
}
public boolean isModified(Object old, Object current, boolean[] checkable, SessionImplementor session)
throws HibernateException {
return isDirty(old, current, session);
}
public boolean isSame(Object x, Object y, EntityMode entityMode) throws HibernateException {
return isEqual(x, y, entityMode);
}
public boolean isEqual(Object x, Object y, EntityMode entityMode) {
return EqualsHelper.equals(x, y);
}
public int getHashCode(Object x, EntityMode entityMode) {
return x.hashCode();
}
public boolean isEqual(Object x, Object y, EntityMode entityMode, SessionFactoryImplementor factory) {
return isEqual(x, y, entityMode);
}
public int getHashCode(Object x, EntityMode entityMode, SessionFactoryImplementor factory) {
return getHashCode(x, entityMode);
}
protected static void replaceNode(Node container, Element value) {
if ( container!=value ) { //not really necessary, I guess...
Element parent = container.getParent();
container.detach();
value.setName( container.getName() );
value.detach();
parent.add(value);
}
}
public Type getSemiResolvedType(SessionFactoryImplementor factory) {
return this;
}
public Object replace(
Object original,
Object target,
SessionImplementor session,
Object owner,
Map copyCache,
ForeignKeyDirection foreignKeyDirection)
throws HibernateException {
boolean include;
if ( isAssociationType() ) {
AssociationType atype = (AssociationType) this;
include = atype.getForeignKeyDirection()==foreignKeyDirection;
}
else {
include = ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT==foreignKeyDirection;
}
return include ? replace(original, target, session, owner, copyCache) : target;
}
public void beforeAssemble(Serializable cached, SessionImplementor session) {}
/*public Object copy(Object original, Object target, SessionImplementor session, Object owner, Map copyCache)
throws HibernateException {
if (original==null) return null;
return assemble( disassemble(original, session), session, owner );
}*/
}
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