org.hibernate.type.descriptor.java.BigIntegerTypeDescriptor Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.type.descriptor.java;
import java.math.BigDecimal;
import java.math.BigInteger;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* Descriptor for {@link BigInteger} handling.
*
* @author Steve Ebersole
*/
public class BigIntegerTypeDescriptor extends AbstractTypeDescriptor {
public static final BigIntegerTypeDescriptor INSTANCE = new BigIntegerTypeDescriptor();
public BigIntegerTypeDescriptor() {
super( BigInteger.class );
}
public String toString(BigInteger value) {
return value.toString();
}
public BigInteger fromString(String string) {
return new BigInteger( string );
}
@Override
public int extractHashCode(BigInteger value) {
return value.intValue();
}
@Override
public boolean areEqual(BigInteger one, BigInteger another) {
return one == another || ( one != null && another != null && one.compareTo( another ) == 0 );
}
/**
* {@inheritDoc}
*/
@SuppressWarnings({ "unchecked" })
public X unwrap(BigInteger value, Class type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( BigInteger.class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( BigDecimal.class.isAssignableFrom( type ) ) {
return (X) new BigDecimal( value );
}
if ( Byte.class.isAssignableFrom( type ) ) {
return (X) Byte.valueOf( value.byteValue() );
}
if ( Short.class.isAssignableFrom( type ) ) {
return (X) Short.valueOf( value.shortValue() );
}
if ( Integer.class.isAssignableFrom( type ) ) {
return (X) Integer.valueOf( value.intValue() );
}
if ( Long.class.isAssignableFrom( type ) ) {
return (X) Long.valueOf( value.longValue() );
}
if ( Double.class.isAssignableFrom( type ) ) {
return (X) Double.valueOf( value.doubleValue() );
}
if ( Float.class.isAssignableFrom( type ) ) {
return (X) Float.valueOf( value.floatValue() );
}
throw unknownUnwrap( type );
}
/**
* {@inheritDoc}
*/
public BigInteger wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( BigInteger.class.isInstance( value ) ) {
return (BigInteger) value;
}
if ( BigDecimal.class.isInstance( value ) ) {
return ( (BigDecimal) value ).toBigIntegerExact();
}
if ( Number.class.isInstance( value ) ) {
return BigInteger.valueOf( ( (Number) value ).longValue() );
}
throw unknownWrap( value.getClass() );
}
}