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The core O/RM functionality as provided by Hibernate
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.type;
import java.io.Serializable;
import org.hibernate.dialect.Dialect;
import org.hibernate.type.descriptor.java.DoubleTypeDescriptor;
/**
* A type that maps between {@link java.sql.Types#DOUBLE DOUBLE} and {@link Double}
*
* @author Gavin King
* @author Steve Ebersole
*/
public class DoubleType extends AbstractSingleColumnStandardBasicType implements PrimitiveType {
public static final DoubleType INSTANCE = new DoubleType();
public static final Double ZERO = 0.0;
public DoubleType() {
super( org.hibernate.type.descriptor.sql.DoubleTypeDescriptor.INSTANCE, DoubleTypeDescriptor.INSTANCE );
}
@Override
public String getName() {
return "double";
}
@Override
public String[] getRegistrationKeys() {
return new String[] { getName(), double.class.getName(), Double.class.getName() };
}
@Override
public Serializable getDefaultValue() {
return ZERO;
}
@Override
public Class getPrimitiveClass() {
return double.class;
}
@Override
public String objectToSQLString(Double value, Dialect dialect) throws Exception {
return toString( value );
}
}