//$Id$
package org.hibernate.test.annotations.entity;
import java.io.Serializable;
import java.math.BigDecimal;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Currency;
import org.hibernate.Hibernate;
import org.hibernate.HibernateException;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.type.Type;
import org.hibernate.usertype.CompositeUserType;
/**
* @author Emmanuel Bernard
*/
public class MonetaryAmountUserType implements CompositeUserType {
public String[] getPropertyNames() {
return new String[]{"amount", "currency"};
}
public Type[] getPropertyTypes() {
return new Type[]{Hibernate.BIG_DECIMAL, Hibernate.CURRENCY};
}
public Object getPropertyValue(Object component, int property) throws HibernateException {
MonetaryAmount ma = (MonetaryAmount) component;
return property == 0 ? (Object) ma.getAmount() : (Object) ma.getCurrency();
}
public void setPropertyValue(Object component, int property, Object value)
throws HibernateException {
MonetaryAmount ma = (MonetaryAmount) component;
if ( property == 0 ) {
ma.setAmount( (BigDecimal) value );
}
else {
ma.setCurrency( (Currency) value );
}
}
public Class returnedClass() {
return MonetaryAmount.class;
}
public boolean equals(Object x, Object y) throws HibernateException {
if ( x == y ) return true;
if ( x == null || y == null ) return false;
MonetaryAmount mx = (MonetaryAmount) x;
MonetaryAmount my = (MonetaryAmount) y;
return mx.getAmount().equals( my.getAmount() ) &&
mx.getCurrency().equals( my.getCurrency() );
}
public int hashCode(Object x) throws HibernateException {
return ( (MonetaryAmount) x ).getAmount().hashCode();
}
public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
throws HibernateException, SQLException {
BigDecimal amt = (BigDecimal) Hibernate.BIG_DECIMAL.nullSafeGet( rs, names[0] );
Currency cur = (Currency) Hibernate.CURRENCY.nullSafeGet( rs, names[1] );
if ( amt == null ) return null;
return new MonetaryAmount( amt, cur );
}
public void nullSafeSet(
PreparedStatement st, Object value, int index,
SessionImplementor session
) throws HibernateException, SQLException {
MonetaryAmount ma = (MonetaryAmount) value;
BigDecimal amt = ma == null ? null : ma.getAmount();
Currency cur = ma == null ? null : ma.getCurrency();
Hibernate.BIG_DECIMAL.nullSafeSet( st, amt, index );
Hibernate.CURRENCY.nullSafeSet( st, cur, index + 1 );
}
public Object deepCopy(Object value) throws HibernateException {
MonetaryAmount ma = (MonetaryAmount) value;
return new MonetaryAmount( ma.getAmount(), ma.getCurrency() );
}
public boolean isMutable() {
return true;
}
public Serializable disassemble(Object value, SessionImplementor session)
throws HibernateException {
return (Serializable) deepCopy( value );
}
public Object assemble(Serializable cached, SessionImplementor session, Object owner)
throws HibernateException {
return deepCopy( cached );
}
public Object replace(Object original, Object target, SessionImplementor session, Object owner)
throws HibernateException {
return deepCopy( original ); //TODO: improve
}
}