AbstractTemporalItem.java

/*
 * SPDX-FileCopyrightText: none
 * SPDX-License-Identifier: CC0-1.0
 */

package gov.nist.secauto.metaschema.core.metapath.item.atomic;

import gov.nist.secauto.metaschema.core.metapath.item.function.IMapKey;

import edu.umd.cs.findbugs.annotations.NonNull;

/**
 * A base class for temporal items.
 *
 * @param <TYPE>
 *          the Java type of the wrapped value
 */
public abstract class AbstractTemporalItem<TYPE>
    extends AbstractAnyAtomicItem<TYPE>
    implements ITemporalItem {

  /**
   * Construct a new temporal item.
   *
   * @param value
   *          the wrapped value
   */
  protected AbstractTemporalItem(@NonNull TYPE value) {
    super(value);
  }

  @Override
  public IMapKey asMapKey() {
    return new MapKey();
  }

  private final class MapKey
      implements IMapKey {

    @Override
    public ITemporalItem getKey() {
      return AbstractTemporalItem.this;
    }

    @Override
    public int hashCode() {
      return getKey().hashCode();
    }

    @SuppressWarnings("PMD.OnlyOneReturn")
    @Override
    public boolean equals(Object obj) {
      if (this == obj) {
        return true;
      }

      if (!(obj instanceof AbstractTemporalItem.MapKey)) {
        return false;
      }

      AbstractTemporalItem<?>.MapKey other = (AbstractTemporalItem<?>.MapKey) obj;
      return getKey().compareTo(other.getKey()) == 0;
    }
  }
}