jdk/src/share/classes/javax/sql/rowset/spi/SyncProviderException.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/sql/rowset/spi/SyncProviderException.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2003-2006 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package javax.sql.rowset.spi;
+
+import java.sql.SQLException;
+import javax.sql.rowset.*;
+
+/**
+ * Indicates an error with the <code>SyncProvider</code> mechanism. This exception
+ * is created by a <code>SyncProvider</code> abstract class extension if it
+ * encounters violations in reading from or writing to the originating data source.
+ * <P>
+ * If it is implemented to do so, the <code>SyncProvider</code> object may also create a
+ * <code>SyncResolver</code> object and either initialize the <code>SyncProviderException</code>
+ * object with it at construction time or set it with the <code>SyncProvider</code> object at
+ * a later time.
+ * <P>
+ * The method <code>acceptChanges</code> will throw this exception after the writer
+ * has finished checking for conflicts and has found one or more conflicts. An
+ * application may catch a <code>SyncProviderException</code> object and call its
+ * <code>getSyncResolver</code> method to get its <code>SyncResolver</code> object.
+ * See the code fragment in the interface comment for
+ * <a href="SyncResolver.html"><code>SyncResolver</code></a> for an example.
+ * This <code>SyncResolver</code> object will mirror the <code>RowSet</code>
+ * object that generated the exception, except that it will contain only the values
+ * from the data source that are in conflict.  All other values in the <code>SyncResolver</code>
+ * object will be <code>null</code>.
+ * <P>
+ * The <code>SyncResolver</code> object may be used to examine and resolve
+ * each conflict in a row and then go to the next row with a conflict to
+ * repeat the procedure.
+ * <P>
+ * A <code>SyncProviderException</code> object may or may not contain a description of the
+ * condition causing the exception.  The inherited method <code>getMessage</code> may be
+ * called to retrieve the description if there is one.
+ *
+ * @author Jonathan Bruce
+ * @see javax.sql.rowset.spi.SyncFactory
+ * @see javax.sql.rowset.spi.SyncResolver
+ * @see javax.sql.rowset.spi.SyncFactoryException
+ */
+public class SyncProviderException extends java.sql.SQLException {
+
+    /**
+     * The instance of <code>javax.sql.rowset.spi.SyncResolver</code> that
+     * this <code>SyncProviderException</code> object will return when its
+     * <code>getSyncResolver</code> method is called.
+     */
+     private SyncResolver syncResolver = null;
+
+    /**
+     * Creates a new <code>SyncProviderException</code> object without a detail message.
+     */
+    public SyncProviderException() {
+        super();
+    }
+
+    /**
+     * Constructs a <code>SyncProviderException</code> object with the specified
+     * detail message.
+     *
+     * @param msg the detail message
+     */
+    public SyncProviderException(String msg)  {
+        super(msg);
+    }
+
+    /**
+     * Constructs a <code>SyncProviderException</code> object with the specified
+     * <code>SyncResolver</code> instance.
+     *
+     * @param syncResolver the <code>SyncResolver</code> instance used to
+     *     to process the synchronization conflicts
+     * @throws IllegalArgumentException if the <code>SyncResolver</code> object
+     *     is <code>null</code>.
+     */
+    public SyncProviderException(SyncResolver syncResolver)  {
+        if (syncResolver == null) {
+            throw new IllegalArgumentException("Cannot instantiate a SyncProviderException " +
+                "with a null SyncResolver object");
+        } else {
+            this.syncResolver = syncResolver;
+        }
+    }
+
+    /**
+     * Retrieves the <code>SyncResolver</code> object that has been set for
+     * this <code>SyncProviderException</code> object, or
+     * if none has been set, an instance of the default <code>SyncResolver</code>
+     * implementation included in the reference implementation.
+     * <P>
+     * If a <code>SyncProviderException</code> object is thrown, an application
+     * may use this method to generate a <code>SyncResolver</code> object
+     * with which to resolve the conflict or conflicts that caused the
+     * exception to be thrown.
+     *
+     * @return the <code>SyncResolver</code> object set for this
+     *     <code>SyncProviderException</code> object or, if none has
+     *     been set, an instance of the default <code>SyncResolver</code>
+     *     implementation. In addition, the default <code>SyncResolver</code>
+     *     implementation is also returned if the <code>SyncResolver()</code> or
+     *     <code>SyncResolver(String)</code> constructors are used to instantiate
+     *     the <code>SyncResolver</code> instance.
+     */
+    public SyncResolver getSyncResolver() {
+        if (syncResolver != null) {
+            return syncResolver;
+        } else {
+            try {
+              syncResolver = new com.sun.rowset.internal.SyncResolverImpl();
+            } catch (SQLException sqle) {
+            }
+            return syncResolver;
+        }
+    }
+
+    /**
+     * Sets the <code>SyncResolver</code> object for this
+     * <code>SyncProviderException</code> object to the one supplied.
+     * If the argument supplied is <code>null</code>, a call to the method
+     * <code>getSyncResolver</code> will return the default reference
+     * implementation of the <code>SyncResolver</code> interface.
+     *
+     * @param syncResolver the <code>SyncResolver</code> object to be set;
+     *     cannot be <code>null</code>
+     * @throws IllegalArgumentException if the <code>SyncResolver</code> object
+     *     is <code>null</code>.
+     * @see #getSyncResolver
+     */
+    public void setSyncResolver(SyncResolver syncResolver) {
+        if (syncResolver == null) {
+            throw new IllegalArgumentException("Cannot set a null SyncResolver " +
+                "object");
+        } else {
+            this.syncResolver = syncResolver;
+        }
+    }
+
+    static final long serialVersionUID = -939908523620640692L;
+
+}