| /* |
| * $Header: /cvshome/build/org.osgi.service.prefs/src/org/osgi/service/prefs/BackingStoreException.java,v 1.12 2006/07/11 13:15:55 hargrave Exp $ |
| * |
| * Copyright (c) OSGi Alliance (2001, 2006). All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.osgi.service.prefs; |
| |
| /** |
| * Thrown to indicate that a preferences operation could not complete because of |
| * a failure in the backing store, or a failure to contact the backing store. |
| * |
| * @version $Revision: 1.12 $ |
| */ |
| public class BackingStoreException extends Exception { |
| static final long serialVersionUID = -1415637364122829574L; |
| /** |
| * Nested exception. |
| */ |
| private final Throwable cause; |
| |
| /** |
| * Constructs a <code>BackingStoreException</code> with the specified detail |
| * message. |
| * |
| * @param s The detail message. |
| */ |
| public BackingStoreException(String s) { |
| super(s); |
| this.cause = null; |
| } |
| |
| /** |
| * Constructs a <code>BackingStoreException</code> with the specified detail |
| * message. |
| * |
| * @param s The detail message. |
| * @param cause The cause of the exception. May be <code>null</code>. |
| * @since 1.1 |
| */ |
| public BackingStoreException(String s, Throwable cause) { |
| super(s); |
| this.cause = cause; |
| } |
| |
| /** |
| * Returns the cause of this exception or <code>null</code> if no cause was |
| * specified when this exception was created. |
| * |
| * @return The cause of this exception or <code>null</code> if no cause was |
| * specified. |
| * @since 1.1 |
| */ |
| public Throwable getCause() { |
| return cause; |
| } |
| |
| /** |
| * The cause of this exception can only be set when constructed. |
| * |
| * @param cause Cause of the exception. |
| * @return This object. |
| * @throws java.lang.IllegalStateException This method will always throw an |
| * <code>IllegalStateException</code> since the cause of this |
| * exception can only be set when constructed. |
| * @since 1.1 |
| */ |
| public Throwable initCause(Throwable cause) { |
| throw new IllegalStateException(); |
| } |
| |
| } |