de.rs.hibernate.LocalizedStringType.java Source code

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Here is the source code for de.rs.hibernate.LocalizedStringType.java

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/*
 * Copyright (C) 2014  Robert Stark
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 * 
 * 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with this program;
 * if not, see <http://www.gnu.org/licenses/>.
 */
package de.rs.hibernate;

import java.io.Serializable;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Locale;

import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.type.LocaleType;
import org.hibernate.type.StringType;
import org.hibernate.type.Type;
import org.hibernate.usertype.CompositeUserType;

public class LocalizedStringType implements CompositeUserType {

    private static final int VALUE = 0;

    private static final int LOCALE = 1;

    @Override
    public String[] getPropertyNames() {
        return new String[] { "value", "locale" };
    }

    @Override
    public Type[] getPropertyTypes() {
        return new Type[] { StringType.INSTANCE, LocaleType.INSTANCE };
    }

    @Override
    public Object getPropertyValue(Object component, int propertyIndex) throws HibernateException {
        if (component == null) {
            return null;
        }

        final LocalizedString string = (LocalizedString) component;
        switch (propertyIndex) {
        case VALUE: {
            return string.getValue();
        }
        case LOCALE: {
            return string.getLocale();
        }
        default: {
            throw new HibernateException("Invalid property index [" + propertyIndex + "]");
        }
        }
    }

    @Override
    public void setPropertyValue(Object component, int propertyIndex, Object value) throws HibernateException {
        if (component == null) {
            return;
        }

        final LocalizedString string = (LocalizedString) component;
        switch (propertyIndex) {
        case VALUE: {
            string.setValue((String) value);
            break;
        }
        case LOCALE: {
            string.setLocale((Locale) value);
            break;
        }
        default: {
            throw new HibernateException("Invalid property index [" + propertyIndex + "]");
        }
        }
    }

    @Override
    public Class<?> returnedClass() {
        return LocalizedString.class;
    }

    @Override
    public boolean equals(Object x, Object y) throws HibernateException {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public int hashCode(Object x) throws HibernateException {
        if (x != null) {
            return x.hashCode();
        }
        return 0;
    }

    @Override
    public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
            throws HibernateException, SQLException {
        //      http://queforum.com/programming-languages-basics/297111-java-usertype-interceptor-handling-i18n-hibernate.html
        //      String text = "";
        //      String rawId = (String) StringType.INSTANCE.nullSafeGet(rs, names, session, owner);
        //      if (rawId != null && rawId.length() > 0) {
        //         Long labelId = Long.parseLong(rawId);
        //         text = LocalizationLabelUtil.getText(labelId, LocaleContextHolder.getLocale());
        //      }
        //      return text;
        assert names.length == 2;
        String value = (String) StringType.INSTANCE.nullSafeGet(rs, names[VALUE], session, owner); // already handles null check
        Locale locale = (Locale) LocaleType.INSTANCE.nullSafeGet(rs, names[LOCALE], session, owner); // already handles null check
        return value == null && locale == null ? null : new LocalizedString(value, locale);
    }

    @Override
    public void nullSafeSet(PreparedStatement st, Object value, int index, SessionImplementor session)
            throws HibernateException, SQLException {
        if (value == null) {
            StringType.INSTANCE.set(st, null, index, session);
            LocaleType.INSTANCE.set(st, null, index + 1, session);
        } else {
            final LocalizedString string = (LocalizedString) value;
            StringType.INSTANCE.set(st, string.getValue(), index, session);
            LocaleType.INSTANCE.set(st, string.getLocale(), index + 1, session);
        }
    }

    @Override
    public Object deepCopy(Object value) throws HibernateException {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public boolean isMutable() {
        return true;
    }

    @Override
    public Serializable disassemble(Object value, SessionImplementor session) throws HibernateException {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public Object assemble(Serializable cached, SessionImplementor session, Object owner)
            throws HibernateException {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public Object replace(Object original, Object target, SessionImplementor session, Object owner)
            throws HibernateException {
        // TODO Auto-generated method stub
        return null;
    }

}