Java tutorial
/* * Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * 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, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ 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>, <code>Statement</code>, * and <code>ResultSet</code> 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</code> object * with a given <code>reason</code>, <code>SQLState</code> and * <code>vendorCode</code>. * * The <code>cause</code> 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</code> object * with a given <code>reason</code> and <code>SQLState</code>. * * The <code>cause</code> 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</code> object * with a given <code>reason</code>. The <code>SQLState</code> * is initialized to <code>null</code> and the vendor code is initialized * to 0. * * The <code>cause</code> 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</code> object. * The <code>reason</code>, <code>SQLState</code> are initialized * to <code>null</code> and the vendor code is initialized to 0. * * The <code>cause</code> 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</code> object * with a given <code>cause</code>. * The <code>SQLState</code> is initialized * to <code>null</code> and the vendor code is initialized to 0. * The <code>reason</code> is initialized to <code>null</code> if * <code>cause==null</code> or to <code>cause.toString()</code> if * <code>cause!=null</code>. * * @param cause the underlying reason for this <code>SQLWarning</code> (which is saved for later retrieval by the <code>getCause()</code> 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</code> object * with a given * <code>reason</code> and <code>cause</code>. * The <code>SQLState</code> is initialized to <code>null</code> * and the vendor code is initialized to 0. * * @param reason a description of the warning * @param cause the underlying reason for this <code>SQLWarning</code> * (which is saved for later retrieval by the <code>getCause()</code> 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</code> object * with a given * <code>reason</code>, <code>SQLState</code> and <code>cause</code>. * 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</code> (which is saved for later retrieval by the <code>getCause()</code> 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</code> object * with a given * <code>reason</code>, <code>SQLState</code>, <code>vendorCode</code> * and <code>cause</code>. * * @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</code> (which is saved for later retrieval by the <code>getCause()</code> 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</code> object by * <code>setNextWarning</code>. * * @return the next <code>SQLException</code> in the chain; <code>null</code> 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</code> object to the end of the chain. * * @param w the new end of the <code>SQLException</code> chain * @see #getNextWarning */ public void setNextWarning(SQLWarning w) { setNextException(w); } private static final long serialVersionUID = 3917336774604784856L; }