JodaLocalDateMapper.java

/*
 * Copyright 2010 The Fornax Project Team, including the original
 * author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.sculptor.framework.accessimpl.mongodb;

import java.util.Collections;
import java.util.Date;
import java.util.List;

import org.joda.time.LocalDate;

public class JodaLocalDateMapper implements DataMapper<LocalDate, Date> {
    private static JodaLocalDateMapper instance = new JodaLocalDateMapper();

    protected JodaLocalDateMapper() {
    }

    public static JodaLocalDateMapper getInstance() {
        return instance;
    }

    public boolean canMapToData(Class<?> domainObjectClass) {
        if (domainObjectClass == null) {
            return true;
        }
        return LocalDate.class.isAssignableFrom(domainObjectClass);
    }

    public String getDBCollectionName() {
        throw new IllegalStateException("Not a DBCollection");
    }

    public Date toData(LocalDate from) {
        if (from == null) {
            return null;
        }
        return from.toDateTimeAtStartOfDay().toDate();
    }

// Comment out due to compile error:
// name clash: toDomain(java.lang.Object) in org.sculptor.framework.accessimpl.mongodb.JodaLocalDateMapper and toDomain(D) in org.sculptor.framework.accessimpl.mongodb.DataMapper have the same erasure, yet neither overrides the other
//    public LocalDate toDomain(Object from) {
//        return toDomain((Date) from);
//    }
// TODO: Remove permanently after more testing if not needed
    
    public LocalDate toDomain(Date from) {
        if (from == null) {
            return null;
        }
        return new LocalDate(from.getTime());
    }

    public List<IndexSpecification> indexes() {
        return Collections.emptyList();
    }
}