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/*-------------------------------------------------------------------------

 *

 * PGline.java

 *     This implements the polygon datatype within PostgreSQL.

 *

 * Copyright (c) 2003, PostgreSQL Global Development Group

 *

 * IDENTIFICATION

 *        $Header: /cvsroot/pgsql/src/interfaces/jdbc/org/postgresql/geometric/Attic/PGpolygon.java,v 1.5 2003/05/29 04:39:48 barry Exp $

 *

 *-------------------------------------------------------------------------

 */

package org.postgresql.geometric;

 

import org.postgresql.util.PGobject;

import org.postgresql.util.PGtokenizer;

import java.io.Serializable;

import java.sql.SQLException;

 

public class PGpolygon extends PGobject implements Serializable, Cloneable

{

        /*

         * The points defining the polygon

         */

        public PGpoint points[];

 

        /*

         * Creates a polygon using an array of PGpoints

         *

         * @param points the points defining the polygon

         */

        public PGpolygon(PGpoint[] points)

        {

                this();

                this.points = points;

        }

 

        /*

         * @param s definition of the circle in PostgreSQL's syntax.

         * @exception SQLException on conversion failure

         */

        public PGpolygon(String s) throws SQLException

        {

                this();

                setValue(s);

        }

 

        /*

         * Required by the driver

         */

        public PGpolygon()

        {

                setType("polygon");

        }

 

        /*

         * @param s Definition of the polygon in PostgreSQL's syntax

         * @exception SQLException on conversion failure

         */

        public void setValue(String s) throws SQLException

        {

                PGtokenizer t = new PGtokenizer(PGtokenizer.removePara(s), ',');

                int npoints = t.getSize();

                points = new PGpoint[npoints];

                for (int p = 0;p < npoints;p++)

                        points[p] = new PGpoint(t.getToken(p));

        }

 

        /*

         * @param obj Object to compare with

         * @return true if the two boxes are identical

         */

        public boolean equals(Object obj)

        {

                if (obj instanceof PGpolygon)

                {

                        PGpolygon p = (PGpolygon)obj;

 

                        if (p.points.length != points.length)

                                return false;

 

                        for (int i = 0;i < points.length;i++)

                                if (!points[i].equals(p.points[i]))

                                        return false;

 

                        return true;

                }

                return false;

        }

 

        /*

         * This must be overidden to allow the object to be cloned

         */

        public Object clone()

        {

                PGpoint ary[] = new PGpoint[points.length];

                for (int i = 0;i < points.length;i++)

                        ary[i] = (PGpoint)points[i].clone();

                return new PGpolygon(ary);

        }

 

        /*

         * @return the PGpolygon in the syntax expected by org.postgresql

         */

        public String getValue()

        {

                StringBuffer b = new StringBuffer();

                b.append("(");

                for (int p = 0;p < points.length;p++)

                {

                        if (p > 0)

                                b.append(",");

                        b.append(points[p].toString());

                }

                b.append(")");

                return b.toString();

        }

}