/*
 * The JTS Topology Suite is a collection of Java classes that
 * implement the fundamental operations required to validate a given
 * geo-spatial data set to a known topological specification.
 *
 * Copyright (C) 2001 Vivid Solutions
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * For more information, contact:
 *
 *     Vivid Solutions
 *     Suite #1A
 *     2328 Government Street
 *     Victoria BC  V8T 5G5
 *     Canada
 *
 *     (250)385-6040
 *     www.vividsolutions.com
 */
package com.revolsys.geometry.model.impl;

import java.awt.geom.Point2D;

import com.revolsys.geometry.model.Point;

/**
 * Represents a single point.
 *
 * A <code>Point</code> is topologically valid if and only if:
 * <ul>
 * <li>the coordinate which defines it (if any) is a valid coordinate
 * (i.e does not have an <code>NaN</code> X or Y ordinate)
 * </ul>
 *
 *@version 1.7
 */
public abstract class AbstractPoint extends Point2D implements Point {
  private static final long serialVersionUID = 4902022702746614570L;

  /**
   * Creates and returns a full copy of this {@link Point} object.
   * (including all coordinates contained by it).
   *
   * @return a clone of this instance
   */
  @Override
  public Point clone() {
    return (Point)super.clone();
  }

  @Override
  public boolean equals(final Object other) {
    if (other instanceof Point) {
      final Point point = (Point)other;
      return equals(point);
    } else {
      return false;
    }
  }

  @Override
  public int hashCode() {
    final double x = getX();
    final double y = getY();
    long bits = java.lang.Double.doubleToLongBits(x);
    bits ^= java.lang.Double.doubleToLongBits(y) * 31;
    return (int)bits ^ (int)(bits >> 32);
  }

  @Override
  public void setLocation(final double x, final double y) {
    throw new UnsupportedOperationException();
  }

  @Override
  public String toString() {
    return toEwkt();
  }

}