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Relational Persistence for Java
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowledgement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgement may appear in the software itself,
* if and wherever such third-party acknowledgements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* NestedException, when the
* exception is finally printed out using any of the
* printStackTrace() methods, the stacktrace will contain
* the information about all exceptions thrown and caught on
* the way.
* Running the following program
*
* 1 import org.apache.commons.lang.exception.NestableException;
* 2
* 3 public class Test {
* 4 public static void main( String[] args ) {
* 5 try {
* 6 a();
* 7 } catch(Exception e) {
* 8 e.printStackTrace();
* 9 }
* 10 }
* 11
* 12 public static void a() throws Exception {
* 13 try {
* 14 b();
* 15 } catch(Exception e) {
* 16 throw new NestableException("foo", e);
* 17 }
* 18 }
* 19
* 20 public static void b() throws Exception {
* 21 try {
* 22 c();
* 23 } catch(Exception e) {
* 24 throw new NestableException("bar", e);
* 25 }
* 26 }
* 27
* 28 public static void c() throws Exception {
* 29 throw new Exception("baz");
* 30 }
* 31 }
*
* Yields the following stacktrace:
*
* org.apache.commons.lang.exception.NestableException: foo
* at Test.a(Test.java:16)
* at Test.main(Test.java:6)
* Caused by: org.apache.commons.lang.exception.NestableException: bar
* at Test.b(Test.java:24)
* at Test.a(Test.java:14)
* ... 1 more
* Caused by: java.lang.Exception: baz
* at Test.c(Test.java:29)
* at Test.b(Test.java:22)
* ... 2 more
*
*
* @author Rafal Krzewski
* @author Daniel Rall
* @author Kasper Nielsen
* @author Steven Caswell
* @version $Id: NestableException.java 4782 2004-11-21 00:11:27Z pgmjsd $
* @since 1.0
*/
public class NestableException extends Exception implements Nestable {
/**
* The helper instance which contains much of the code which we
* delegate to.
*/
protected NestableDelegate delegate = new NestableDelegate( this );
/**
* Holds the reference to the exception or error that caused
* this exception to be thrown.
*/
private Throwable cause = null;
/**
* Constructs a new NestableException without specified
* detail message.
*/
public NestableException() {
super();
}
/**
* Constructs a new NestableException with specified
* detail message.
*
* @param msg The error message.
*/
public NestableException(String msg) {
super( msg );
}
/**
* Constructs a new NestableException with specified
* nested Throwable.
*
* @param cause the exception or error that caused this exception to be
* thrown
*/
public NestableException(Throwable cause) {
super();
this.cause = cause;
}
/**
* Constructs a new NestableException with specified
* detail message and nested Throwable.
*
* @param msg the error message
* @param cause the exception or error that caused this exception to be
* thrown
*/
public NestableException(String msg, Throwable cause) {
super( msg );
this.cause = cause;
}
public Throwable getCause() {
return cause;
}
/**
* Returns the detail message string of this throwable. If it was
* created with a null message, returns the following:
* ( cause==null ? null : cause.toString() ).
*/
public String getMessage() {
if ( super.getMessage() != null ) {
return super.getMessage();
}
else if ( cause != null ) {
return cause.toString();
}
else {
return null;
}
}
public String getMessage(int index) {
if ( index == 0 ) {
return super.getMessage();
}
else {
return delegate.getMessage( index );
}
}
public String[] getMessages() {
return delegate.getMessages();
}
public Throwable getThrowable(int index) {
return delegate.getThrowable( index );
}
public int getThrowableCount() {
return delegate.getThrowableCount();
}
public Throwable[] getThrowables() {
return delegate.getThrowables();
}
public int indexOfThrowable(Class type) {
return delegate.indexOfThrowable( type, 0 );
}
public int indexOfThrowable(Class type, int fromIndex) {
return delegate.indexOfThrowable( type, fromIndex );
}
public void printStackTrace() {
delegate.printStackTrace();
}
public void printStackTrace(PrintStream out) {
delegate.printStackTrace( out );
}
public void printStackTrace(PrintWriter out) {
delegate.printStackTrace( out );
}
public final void printPartialStackTrace(PrintWriter out) {
super.printStackTrace( out );
}
}