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Entity as Bean with Property support (IdProperty, LinkProperty, LinkListProperty).

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/* Copyright (c) The m-m-m Team, Licensed under the Apache License, Version 2.0
 * http://www.apache.org/licenses/LICENSE-2.0 */
package io.github.mmm.entity.property.id;

import io.github.mmm.entity.bean.EntityBean;
import io.github.mmm.entity.id.Id;
import io.github.mmm.entity.id.FkMapper;
import io.github.mmm.property.PropertyMetadata;
import io.github.mmm.value.converter.TypeMapper;

/**
 * {@link IdProperty} for a foreign key to another entity.
 *
 * @param  type of the referenced {@link EntityBean}.
 * @since 1.0.0
 */
public class FkProperty extends IdProperty> {

  private TypeMapper, ?> typeMapper;

  /**
   * The constructor.
   *
   * @param name the {@link #getName() name}.
   * @param id the initial {@link #get() value}.
   * @param metadata the {@link #getMetadata() metadata}.
   */
  public FkProperty(String name, Id id, PropertyMetadata> metadata) {

    super(name, id, metadata);
  }

  @SuppressWarnings({ "unchecked", "rawtypes" })
  @Override
  public TypeMapper, ?> getTypeMapper() {

    if (this.typeMapper == null) {
      this.typeMapper = (TypeMapper) FkMapper.of(get());
    }
    return this.typeMapper;
  }

}