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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package java.sql;

/**
 * <P>An exception that provides information on  database access
 * warnings. Warnings are silently chained to the object whose method
 * caused it to be reported.
 * <P>
 * Warnings may be retrieved from {@code Connection}, {@code Statement},
 * and {@code ResultSet} objects.  Trying to retrieve a warning on a
 * connection after it has been closed will cause an exception to be thrown.
 * Similarly, trying to retrieve a warning on a statement after it has been
 * closed or on a result set after it has been closed will cause
 * an exception to be thrown. Note that closing a statement also
 * closes a result set that it might have produced.
 *
 * @see Connection#getWarnings
 * @see Statement#getWarnings
 * @see ResultSet#getWarnings
 * @since 1.1
 */
public class SQLWarning extends SQLException {

    /**
     * Constructs a  {@code SQLWarning} object
     *  with a given {@code reason}, {@code SQLState}  and
     * {@code vendorCode}.
     *
     * The {@code cause} is not initialized, and may subsequently be
     * initialized by a call to the
     * {@link Throwable#initCause(java.lang.Throwable)} method.
     *
     * @param reason a description of the warning
     * @param SQLState an XOPEN or SQL:2003 code identifying the warning
     * @param vendorCode a database vendor-specific warning code
     */
     public SQLWarning(String reason, String SQLState, int vendorCode) {
        super(reason, SQLState, vendorCode);
        DriverManager.println("SQLWarning: reason(" + reason +
                              ") SQLState(" + SQLState +
                              ") vendor code(" + vendorCode + ")");
    }


    /**
     * Constructs a {@code SQLWarning} object
     * with a given {@code reason} and {@code SQLState}.
     *
     * The {@code cause} is not initialized, and may subsequently be
     * initialized by a call to the
     * {@link Throwable#initCause(java.lang.Throwable)} method. The vendor code
     * is initialized to 0.
     *
     * @param reason a description of the warning
     * @param SQLState an XOPEN or SQL:2003 code identifying the warning
     */
    public SQLWarning(String reason, String SQLState) {
        super(reason, SQLState);
        DriverManager.println("SQLWarning: reason(" + reason +
                                  ") SQLState(" + SQLState + ")");
    }

    /**
     * Constructs a {@code SQLWarning} object
     * with a given {@code reason}. The {@code SQLState}
     * is initialized to {@code null} and the vendor code is initialized
     * to 0.
     *
     * The {@code cause} is not initialized, and may subsequently be
     * initialized by a call to the
     * {@link Throwable#initCause(java.lang.Throwable)} method.
     *
     * @param reason a description of the warning
     */
    public SQLWarning(String reason) {
        super(reason);
        DriverManager.println("SQLWarning: reason(" + reason + ")");
    }

    /**
     * Constructs a  {@code SQLWarning} object.
     * The {@code reason}, {@code SQLState} are initialized
     * to {@code null} and the vendor code is initialized to 0.
     *
     * The {@code cause} is not initialized, and may subsequently be
     * initialized by a call to the
     * {@link Throwable#initCause(java.lang.Throwable)} method.
     *
     */
    public SQLWarning() {
        super();
        DriverManager.println("SQLWarning: ");
    }

    /**
     * Constructs a {@code SQLWarning} object
     * with a given  {@code cause}.
     * The {@code SQLState} is initialized
     * to {@code null} and the vendor code is initialized to 0.
     * The {@code reason}  is initialized to {@code null} if
     * {@code cause==null} or to {@code cause.toString()} if
     * {@code cause!=null}.
     *
     * @param cause the underlying reason for this {@code SQLWarning} (which is saved for later retrieval by the {@code getCause()} method); may be null indicating
     *     the cause is non-existent or unknown.
     */
    public SQLWarning(Throwable cause) {
        super(cause);
        DriverManager.println("SQLWarning");
    }

    /**
     * Constructs a {@code SQLWarning} object
     * with a given
     * {@code reason} and  {@code cause}.
     * The {@code SQLState} is  initialized to {@code null}
     * and the vendor code is initialized to 0.
     *
     * @param reason a description of the warning
     * @param cause  the underlying reason for this {@code SQLWarning}
     * (which is saved for later retrieval by the {@code getCause()} method);
     * may be null indicating the cause is non-existent or unknown.
     */
    public SQLWarning(String reason, Throwable cause) {
        super(reason,cause);
        DriverManager.println("SQLWarning : reason("+ reason + ")");
    }

    /**
     * Constructs a {@code SQLWarning} object
     * with a given
     * {@code reason}, {@code SQLState} and  {@code cause}.
     * The vendor code is initialized to 0.
     *
     * @param reason a description of the warning
     * @param SQLState an XOPEN or SQL:2003 code identifying the warning
     * @param cause the underlying reason for this {@code SQLWarning} (which is saved for later retrieval by the {@code getCause()} method); may be null indicating
     *     the cause is non-existent or unknown.
     */
    public SQLWarning(String reason, String SQLState, Throwable cause) {
        super(reason,SQLState,cause);
        DriverManager.println("SQLWarning: reason(" + reason +
                                  ") SQLState(" + SQLState + ")");
    }

    /**
     * Constructs a{@code SQLWarning} object
     * with a given
     * {@code reason}, {@code SQLState}, {@code vendorCode}
     * and  {@code cause}.
     *
     * @param reason a description of the warning
     * @param SQLState an XOPEN or SQL:2003 code identifying the warning
     * @param vendorCode a database vendor-specific warning code
     * @param cause the underlying reason for this {@code SQLWarning} (which is saved for later retrieval by the {@code getCause()} method); may be null indicating
     *     the cause is non-existent or unknown.
     */
    public SQLWarning(String reason, String SQLState, int vendorCode, Throwable cause) {
        super(reason,SQLState,vendorCode,cause);
        DriverManager.println("SQLWarning: reason(" + reason +
                              ") SQLState(" + SQLState +
                              ") vendor code(" + vendorCode + ")");

    }
    /**
     * Retrieves the warning chained to this {@code SQLWarning} object by
     * {@code setNextWarning}.
     *
     * @return the next {@code SQLException} in the chain; {@code null} if none
     * @see #setNextWarning
     */
    public SQLWarning getNextWarning() {
        try {
            return ((SQLWarning)getNextException());
        } catch (ClassCastException ex) {
            // The chained value isn't a SQLWarning.
            // This is a programming error by whoever added it to
            // the SQLWarning chain.  We throw a Java "Error".
            throw new Error("SQLWarning chain holds value that is not a SQLWarning");
        }
    }

    /**
     * Adds a {@code SQLWarning} object to the end of the chain.
     *
     * @param w the new end of the {@code SQLException} chain
     * @see #getNextWarning
     */
    public void setNextWarning(SQLWarning w) {
        setNextException(w);
    }

    private static final long serialVersionUID = 3917336774604784856L;
}