/*
* 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.io.Reader;
import java.io.StringReader;
import java.sql.Clob;
import java.sql.SQLException;
import java.util.Arrays;
import org.hibernate.HibernateException;
import org.hibernate.type.descriptor.CharacterStream;
import org.hibernate.type.descriptor.WrapperOptions;
/**
* TODO : javadoc
*
* @author Steve Ebersole
*/
public class PrimitiveCharacterArrayTypeDescriptor extends AbstractTypeDescriptor<char[]> {
public static final PrimitiveCharacterArrayTypeDescriptor INSTANCE = new PrimitiveCharacterArrayTypeDescriptor();
@SuppressWarnings({ "unchecked" })
protected PrimitiveCharacterArrayTypeDescriptor() {
super( char[].class, ArrayMutabilityPlan.INSTANCE );
}
public String toString(char[] value) {
return new String( value );
}
public char[] fromString(String string) {
return string.toCharArray();
}
@Override
public boolean areEqual(char[] one, char[] another) {
return one == another
|| ( one != null && another != null && Arrays.equals( one, another ) );
}
@Override
public int extractHashCode(char[] chars) {
int hashCode = 1;
for ( char aChar : chars ) {
hashCode = 31 * hashCode + aChar;
}
return hashCode;
}
@SuppressWarnings({ "unchecked" })
public <X> X unwrap(char[] value, Class<X> type, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( char[].class.isAssignableFrom( type ) ) {
return (X) value;
}
if ( String.class.isAssignableFrom( type ) ) {
return (X) new String( value );
}
if ( Clob.class.isAssignableFrom( type ) ) {
return (X) options.getLobCreator().createClob( new String( value ) );
}
if ( Reader.class.isAssignableFrom( type ) ) {
return (X) new StringReader( new String( value ) );
}
if ( CharacterStream.class.isAssignableFrom( type ) ) {
return (X) new CharacterStreamImpl( new String( value ) );
}
throw unknownUnwrap( type );
}
public <X> char[] wrap(X value, WrapperOptions options) {
if ( value == null ) {
return null;
}
if ( char[].class.isInstance( value ) ) {
return (char[]) value;
}
if ( String.class.isInstance( value ) ) {
return ( (String) value ).toCharArray();
}
if ( Clob.class.isInstance( value ) ) {
try {
return DataHelper.extractString( ( (Clob) value ).getCharacterStream() ).toCharArray();
}
catch ( SQLException e ) {
throw new HibernateException( "Unable to access lob stream", e );
}
}
if ( Reader.class.isInstance( value ) ) {
return DataHelper.extractString( ( (Reader) value ) ).toCharArray();
}
throw unknownWrap( value.getClass() );
}
}