samples/dci-cargo/dcisample_b/src/main/java/org/qi4j/sample/dcicargo/sample_b/data/structure/location/UnLocode.java

/*
 * Copyright 2011 Marc Grue.
 *
 * 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.qi4j.sample.dcicargo.sample_b.data.structure.location;

import org.qi4j.api.property.Property;
import org.qi4j.api.value.ValueComposite;
import org.qi4j.library.constraints.annotation.Matches;

/**
 * UnLocode
 *
 * A United Nations location code.
 *
 * http://www.unece.org/cefact/locode/
 * http://www.unece.org/cefact/locode/DocColumnDescription.htm#LOCODE
 *
 * UnLocode is mandatory and immutable.
 */
public interface UnLocode
    extends ValueComposite
{
    // Country code is exactly two letters.
    // Location code is usually three letters, but may contain the numbers 2-9 as well
    @Matches( "[a-zA-Z]{2}[a-zA-Z2-9]{3}" )
    Property<String> code();
}