--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialDatalink.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2003, 2014, 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 javax.sql.rowset.serial;
+
+import java.sql.*;
+import java.io.*;
+import java.net.URL;
+
+
+/**
+ * A serialized mapping in the Java programming language of an SQL
+ * <code>DATALINK</code> value. A <code>DATALINK</code> value
+ * references a file outside of the underlying data source that the
+ * data source manages.
+ * <P>
+ * <code>RowSet</code> implementations can use the method <code>RowSet.getURL</code>
+ * to retrieve a <code>java.net.URL</code> object, which can be used
+ * to manipulate the external data.
+ * <pre>
+ * java.net.URL url = rowset.getURL(1);
+ * </pre>
+ *
+ * <h3> Thread safety </h3>
+ *
+ * A SerialDatalink is not safe for use by multiple concurrent threads. If a
+ * SerialDatalink is to be used by more than one thread then access to the
+ * SerialDatalink should be controlled by appropriate synchronization.
+ *
+ * @since 1.5
+ */
+public class SerialDatalink implements Serializable, Cloneable {
+
+ /**
+ * The extracted URL field retrieved from the DATALINK field.
+ * @serial
+ */
+ private URL url;
+
+ /**
+ * The SQL type of the elements in this <code>SerialDatalink</code>
+ * object. The type is expressed as one of the constants from the
+ * class <code>java.sql.Types</code>.
+ * @serial
+ */
+ private int baseType;
+
+ /**
+ * The type name used by the DBMS for the elements in the SQL
+ * <code>DATALINK</code> value that this SerialDatalink object
+ * represents.
+ * @serial
+ */
+ private String baseTypeName;
+
+ /**
+ * Constructs a new <code>SerialDatalink</code> object from the given
+ * <code>java.net.URL</code> object.
+ *
+ * @param url the {@code URL} to create the {@code SerialDataLink} from
+ * @throws SerialException if url parameter is a null
+ */
+ public SerialDatalink(URL url) throws SerialException {
+ if (url == null) {
+ throw new SerialException("Cannot serialize empty URL instance");
+ }
+ this.url = url;
+ }
+
+ /**
+ * Returns a new URL that is a copy of this <code>SerialDatalink</code>
+ * object.
+ *
+ * @return a copy of this <code>SerialDatalink</code> object as a
+ * <code>URL</code> object in the Java programming language.
+ * @throws SerialException if the <code>URL</code> object cannot be de-serialized
+ */
+ public URL getDatalink() throws SerialException {
+
+ URL aURL = null;
+
+ try {
+ aURL = new URL((this.url).toString());
+ } catch (java.net.MalformedURLException e) {
+ throw new SerialException("MalformedURLException: " + e.getMessage());
+ }
+ return aURL;
+ }
+
+ /**
+ * Compares this {@code SerialDatalink} to the specified object.
+ * The result is {@code true} if and only if the argument is not
+ * {@code null} and is a {@code SerialDatalink} object whose URL is
+ * identical to this object's URL
+ *
+ * @param obj The object to compare this {@code SerialDatalink} against
+ *
+ * @return {@code true} if the given object represents a {@code SerialDatalink}
+ * equivalent to this SerialDatalink, {@code false} otherwise
+ *
+ */
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof SerialDatalink) {
+ SerialDatalink sdl = (SerialDatalink) obj;
+ return url.equals(sdl.url);
+ }
+ return false;
+ }
+
+ /**
+ * Returns a hash code for this {@code SerialDatalink}. The hash code for a
+ * {@code SerialDatalink} object is taken as the hash code of
+ * the {@code URL} it stores
+ *
+ * @return a hash code value for this object.
+ */
+ public int hashCode() {
+ return 31 + url.hashCode();
+ }
+
+ /**
+ * Returns a clone of this {@code SerialDatalink}.
+ *
+ * @return a clone of this SerialDatalink
+ */
+ public Object clone() {
+ try {
+ SerialDatalink sdl = (SerialDatalink) super.clone();
+ return sdl;
+ } catch (CloneNotSupportedException ex) {
+ // this shouldn't happen, since we are Cloneable
+ throw new InternalError();
+ }
+ }
+
+ /**
+ * readObject and writeObject are called to restore the state
+ * of the {@code SerialDatalink}
+ * from a stream. Note: we leverage the default Serialized form
+ */
+
+ /**
+ * The identifier that assists in the serialization of this
+ * {@code SerialDatalink} object.
+ */
+ static final long serialVersionUID = 2826907821828733626L;
+}