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org.hibernate.type.CustomType 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;
import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Map;
import org.dom4j.Node;
import org.hibernate.HibernateException;
import org.hibernate.MappingException;
import org.hibernate.dialect.Dialect;
import org.hibernate.engine.spi.Mapping;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.internal.util.collections.ArrayHelper;
import org.hibernate.metamodel.relational.Size;
import org.hibernate.usertype.EnhancedUserType;
import org.hibernate.usertype.LoggableUserType;
import org.hibernate.usertype.Sized;
import org.hibernate.usertype.UserType;
import org.hibernate.usertype.UserVersionType;
/**
* Adapts {@link UserType} to the generic {@link Type} interface, in order
* to isolate user code from changes in the internal Type contracts.
*
* @author Gavin King
* @author Steve Ebersole
*/
public class CustomType
extends AbstractType
implements IdentifierType, DiscriminatorType, VersionType, BasicType, StringRepresentableType {
private final UserType userType;
private final String name;
private final int[] types;
private final Size[] dictatedSizes;
private final Size[] defaultSizes;
private final boolean customLogging;
private final String[] registrationKeys;
public CustomType(UserType userType) throws MappingException {
this( userType, ArrayHelper.EMPTY_STRING_ARRAY );
}
public CustomType(UserType userType, String[] registrationKeys) throws MappingException {
this.userType = userType;
this.name = userType.getClass().getName();
this.types = userType.sqlTypes();
this.dictatedSizes = Sized.class.isInstance( userType )
? ( (Sized) userType ).dictatedSizes()
: new Size[ types.length ];
this.defaultSizes = Sized.class.isInstance( userType )
? ( (Sized) userType ).defaultSizes()
: new Size[ types.length ];
this.customLogging = LoggableUserType.class.isInstance( userType );
this.registrationKeys = registrationKeys;
}
public UserType getUserType() {
return userType;
}
public String[] getRegistrationKeys() {
return registrationKeys;
}
public int[] sqlTypes(Mapping pi) {
return types;
}
@Override
public Size[] dictatedSizes(Mapping mapping) throws MappingException {
return dictatedSizes;
}
@Override
public Size[] defaultSizes(Mapping mapping) throws MappingException {
return defaultSizes;
}
public int getColumnSpan(Mapping session) {
return types.length;
}
public Class getReturnedClass() {
return userType.returnedClass();
}
public boolean isEqual(Object x, Object y) throws HibernateException {
return userType.equals( x, y );
}
public int getHashCode(Object x) {
return userType.hashCode(x);
}
public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
throws HibernateException, SQLException {
return userType.nullSafeGet(rs, names, session, owner);
}
public Object nullSafeGet(ResultSet rs, String columnName, SessionImplementor session, Object owner)
throws HibernateException, SQLException {
return nullSafeGet(rs, new String[] { columnName }, session, owner);
}
public Object assemble(Serializable cached, SessionImplementor session, Object owner)
throws HibernateException {
return userType.assemble(cached, owner);
}
public Serializable disassemble(Object value, SessionImplementor session, Object owner)
throws HibernateException {
return userType.disassemble(value);
}
public Object replace(
Object original,
Object target,
SessionImplementor session,
Object owner,
Map copyCache) throws HibernateException {
return userType.replace( original, target, owner );
}
public void nullSafeSet(PreparedStatement st, Object value, int index, boolean[] settable, SessionImplementor session)
throws HibernateException, SQLException {
if ( settable[0] ) {
userType.nullSafeSet( st, value, index, session );
}
}
public void nullSafeSet(PreparedStatement st, Object value, int index, SessionImplementor session)
throws HibernateException, SQLException {
userType.nullSafeSet( st, value, index, session );
}
@SuppressWarnings({ "UnusedDeclaration" })
public String toXMLString(Object value, SessionFactoryImplementor factory) {
return toString( value );
}
@SuppressWarnings({ "UnusedDeclaration" })
public Object fromXMLString(String xml, Mapping factory) {
return fromStringValue( xml );
}
public String getName() {
return name;
}
public Object deepCopy(Object value, SessionFactoryImplementor factory)
throws HibernateException {
return userType.deepCopy(value);
}
public boolean isMutable() {
return userType.isMutable();
}
public Object stringToObject(String xml) {
return fromStringValue( xml );
}
public String objectToSQLString(Object value, Dialect dialect) throws Exception {
return ( (EnhancedUserType) userType ).objectToSQLString(value);
}
public Comparator getComparator() {
return (Comparator) userType;
}
public Object next(Object current, SessionImplementor session) {
return ( (UserVersionType) userType ).next( current, session );
}
public Object seed(SessionImplementor session) {
return ( (UserVersionType) userType ).seed( session );
}
public Object fromXMLNode(Node xml, Mapping factory) throws HibernateException {
return fromXMLString( xml.getText(), factory );
}
public void setToXMLNode(Node node, Object value, SessionFactoryImplementor factory)
throws HibernateException {
node.setText( toXMLString(value, factory) );
}
public String toLoggableString(Object value, SessionFactoryImplementor factory)
throws HibernateException {
if ( value == null ) {
return "null";
}
else if ( customLogging ) {
return ( ( LoggableUserType ) userType ).toLoggableString( value, factory );
}
else {
return toXMLString( value, factory );
}
}
public boolean[] toColumnNullness(Object value, Mapping mapping) {
boolean[] result = new boolean[ getColumnSpan(mapping) ];
if ( value != null ) {
Arrays.fill(result, true);
}
return result;
}
public boolean isDirty(Object old, Object current, boolean[] checkable, SessionImplementor session)
throws HibernateException {
return checkable[0] && isDirty(old, current, session);
}
@Override
@SuppressWarnings("unchecked")
public String toString(Object value) throws HibernateException {
if ( StringRepresentableType.class.isInstance( userType ) ) {
return ( (StringRepresentableType) userType ).toString( value );
}
if ( value == null ) {
return null;
}
if ( EnhancedUserType.class.isInstance( userType ) ) {
//noinspection deprecation
return ( (EnhancedUserType) userType ).toXMLString( value );
}
return value.toString();
}
@Override
public Object fromStringValue(String string) throws HibernateException {
if ( StringRepresentableType.class.isInstance( userType ) ) {
return ( (StringRepresentableType) userType ).fromStringValue( string );
}
if ( EnhancedUserType.class.isInstance( userType ) ) {
//noinspection deprecation
return ( (EnhancedUserType) userType ).fromXMLString( string );
}
throw new HibernateException(
String.format(
"Could not process #fromStringValue, UserType class [%s] did not implement %s or %s",
name,
StringRepresentableType.class.getName(),
EnhancedUserType.class.getName()
)
);
}
}
