--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.sql.rowset/share/classes/javax/sql/rowset/serial/SerialClob.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,696 @@
+/*
+ * 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.util.Arrays;
+
+/**
+ * A serialized mapping in the Java programming language of an SQL
+ * <code>CLOB</code> value.
+ * <P>
+ * The <code>SerialClob</code> class provides a constructor for creating
+ * an instance from a <code>Clob</code> object. Note that the <code>Clob</code>
+ * object should have brought the SQL <code>CLOB</code> value's data over
+ * to the client before a <code>SerialClob</code> object
+ * is constructed from it. The data of an SQL <code>CLOB</code> value can
+ * be materialized on the client as a stream of Unicode characters.
+ * <P>
+ * <code>SerialClob</code> methods make it possible to get a substring
+ * from a <code>SerialClob</code> object or to locate the start of
+ * a pattern of characters.
+ *
+ * <h3> Thread safety </h3>
+ *
+ * <p> A SerialClob is not safe for use by multiple concurrent threads. If a
+ * SerialClob is to be used by more than one thread then access to the SerialClob
+ * should be controlled by appropriate synchronization.
+ *
+ * @author Jonathan Bruce
+ * @since 1.5
+ */
+public class SerialClob implements Clob, Serializable, Cloneable {
+
+ /**
+ * A serialized array of characters containing the data of the SQL
+ * <code>CLOB</code> value that this <code>SerialClob</code> object
+ * represents.
+ *
+ * @serial
+ */
+ private char buf[];
+
+ /**
+ * Internal Clob representation if SerialClob is initialized with a
+ * Clob. Null if SerialClob is initialized with a char[].
+ */
+ private Clob clob;
+
+ /**
+ * The length in characters of this <code>SerialClob</code> object's
+ * internal array of characters.
+ *
+ * @serial
+ */
+ private long len;
+
+ /**
+ * The original length in characters of this <code>SerialClob</code>
+ * object's internal array of characters.
+ *
+ * @serial
+ */
+ private long origLen;
+
+ /**
+ * Constructs a <code>SerialClob</code> object that is a serialized version of
+ * the given <code>char</code> array.
+ * <p>
+ * The new <code>SerialClob</code> object is initialized with the data from the
+ * <code>char</code> array, thus allowing disconnected <code>RowSet</code>
+ * objects to establish a serialized <code>Clob</code> object without touching
+ * the data source.
+ *
+ * @param ch the char array representing the <code>Clob</code> object to be
+ * serialized
+ * @throws SerialException if an error occurs during serialization
+ * @throws SQLException if a SQL error occurs
+ */
+ public SerialClob(char ch[]) throws SerialException, SQLException {
+
+ // %%% JMB. Agreed. Add code here to throw a SQLException if no
+ // support is available for locatorsUpdateCopy=false
+ // Serializing locators is not supported.
+
+ len = ch.length;
+ buf = new char[(int)len];
+ for (int i = 0; i < len ; i++){
+ buf[i] = ch[i];
+ }
+ origLen = len;
+ clob = null;
+ }
+
+ /**
+ * Constructs a <code>SerialClob</code> object that is a serialized
+ * version of the given <code>Clob</code> object.
+ * <P>
+ * The new <code>SerialClob</code> object is initialized with the
+ * data from the <code>Clob</code> object; therefore, the
+ * <code>Clob</code> object should have previously brought the
+ * SQL <code>CLOB</code> value's data over to the client from
+ * the database. Otherwise, the new <code>SerialClob</code> object
+ * object will contain no data.
+ * <p>
+ * Note: The <code>Clob</code> object supplied to this constructor must
+ * return non-null for both the <code>Clob.getCharacterStream()</code>
+ * and <code>Clob.getAsciiStream</code> methods. This <code>SerialClob</code>
+ * constructor cannot serialize a <code>Clob</code> object in this instance
+ * and will throw an <code>SQLException</code> object.
+ *
+ * @param clob the <code>Clob</code> object from which this
+ * <code>SerialClob</code> object is to be constructed; cannot be null
+ * @throws SerialException if an error occurs during serialization
+ * @throws SQLException if a SQL error occurs in capturing the CLOB;
+ * if the <code>Clob</code> object is a null; or if either of the
+ * <code>Clob.getCharacterStream()</code> and <code>Clob.getAsciiStream()</code>
+ * methods on the <code>Clob</code> returns a null
+ * @see java.sql.Clob
+ */
+ public SerialClob(Clob clob) throws SerialException, SQLException {
+
+ if (clob == null) {
+ throw new SQLException("Cannot instantiate a SerialClob " +
+ "object with a null Clob object");
+ }
+ len = clob.length();
+ this.clob = clob;
+ buf = new char[(int)len];
+ int read = 0;
+ int offset = 0;
+
+ try (Reader charStream = clob.getCharacterStream()) {
+ if (charStream == null) {
+ throw new SQLException("Invalid Clob object. The call to getCharacterStream " +
+ "returned null which cannot be serialized.");
+ }
+
+ // Note: get an ASCII stream in order to null-check it,
+ // even though we don't do anything with it.
+ try (InputStream asciiStream = clob.getAsciiStream()) {
+ if (asciiStream == null) {
+ throw new SQLException("Invalid Clob object. The call to getAsciiStream " +
+ "returned null which cannot be serialized.");
+ }
+ }
+
+ try (Reader reader = new BufferedReader(charStream)) {
+ do {
+ read = reader.read(buf, offset, (int)(len - offset));
+ offset += read;
+ } while (read > 0);
+ }
+ } catch (java.io.IOException ex) {
+ throw new SerialException("SerialClob: " + ex.getMessage());
+ }
+
+ origLen = len;
+ }
+
+ /**
+ * Retrieves the number of characters in this <code>SerialClob</code>
+ * object's array of characters.
+ *
+ * @return a <code>long</code> indicating the length in characters of this
+ * <code>SerialClob</code> object's array of character
+ * @throws SerialException if an error occurs;
+ * if {@code free} had previously been called on this object
+ */
+ public long length() throws SerialException {
+ isValid();
+ return len;
+ }
+
+ /**
+ * Returns this <code>SerialClob</code> object's data as a stream
+ * of Unicode characters. Unlike the related method, <code>getAsciiStream</code>,
+ * a stream is produced regardless of whether the <code>SerialClob</code> object
+ * was created with a <code>Clob</code> object or a <code>char</code> array.
+ *
+ * @return a <code>java.io.Reader</code> object containing this
+ * <code>SerialClob</code> object's data
+ * @throws SerialException if an error occurs;
+ * if {@code free} had previously been called on this object
+ */
+ public java.io.Reader getCharacterStream() throws SerialException {
+ isValid();
+ return (java.io.Reader) new CharArrayReader(buf);
+ }
+
+ /**
+ * Retrieves the <code>CLOB</code> value designated by this <code>SerialClob</code>
+ * object as an ascii stream. This method forwards the <code>getAsciiStream</code>
+ * call to the underlying <code>Clob</code> object in the event that this
+ * <code>SerialClob</code> object is instantiated with a <code>Clob</code>
+ * object. If this <code>SerialClob</code> object is instantiated with
+ * a <code>char</code> array, a <code>SerialException</code> object is thrown.
+ *
+ * @return a <code>java.io.InputStream</code> object containing
+ * this <code>SerialClob</code> object's data
+ * @throws SerialException if this {@code SerialClob} object was not
+ * instantiated with a <code>Clob</code> object;
+ * if {@code free} had previously been called on this object
+ * @throws SQLException if there is an error accessing the
+ * <code>CLOB</code> value represented by the <code>Clob</code> object
+ * that was used to create this <code>SerialClob</code> object
+ */
+ public java.io.InputStream getAsciiStream() throws SerialException, SQLException {
+ isValid();
+ if (this.clob != null) {
+ return this.clob.getAsciiStream();
+ } else {
+ throw new SerialException("Unsupported operation. SerialClob cannot " +
+ "return a the CLOB value as an ascii stream, unless instantiated " +
+ "with a fully implemented Clob object.");
+ }
+ }
+
+ /**
+ * Returns a copy of the substring contained in this
+ * <code>SerialClob</code> object, starting at the given position
+ * and continuing for the specified number or characters.
+ *
+ * @param pos the position of the first character in the substring
+ * to be copied; the first character of the
+ * <code>SerialClob</code> object is at position
+ * <code>1</code>; must not be less than <code>1</code>,
+ * and the sum of the starting position and the length
+ * of the substring must be less than the length of this
+ * <code>SerialClob</code> object
+ * @param length the number of characters in the substring to be
+ * returned; must not be greater than the length of
+ * this <code>SerialClob</code> object, and the
+ * sum of the starting position and the length
+ * of the substring must be less than the length of this
+ * <code>SerialClob</code> object
+ * @return a <code>String</code> object containing a substring of
+ * this <code>SerialClob</code> object beginning at the
+ * given position and containing the specified number of
+ * consecutive characters
+ * @throws SerialException if either of the arguments is out of bounds;
+ * if {@code free} had previously been called on this object
+ */
+ public String getSubString(long pos, int length) throws SerialException {
+
+ isValid();
+ if (pos < 1 || pos > this.length()) {
+ throw new SerialException("Invalid position in SerialClob object set");
+ }
+
+ if ((pos-1) + length > this.length()) {
+ throw new SerialException("Invalid position and substring length");
+ }
+
+ try {
+ return new String(buf, (int)pos - 1, length);
+
+ } catch (StringIndexOutOfBoundsException e) {
+ throw new SerialException("StringIndexOutOfBoundsException: " +
+ e.getMessage());
+ }
+
+ }
+
+ /**
+ * Returns the position in this <code>SerialClob</code> object
+ * where the given <code>String</code> object begins, starting
+ * the search at the specified position. This method returns
+ * <code>-1</code> if the pattern is not found.
+ *
+ * @param searchStr the <code>String</code> object for which to
+ * search
+ * @param start the position in this <code>SerialClob</code> object
+ * at which to start the search; the first position is
+ * <code>1</code>; must not be less than <code>1</code> nor
+ * greater than the length of this <code>SerialClob</code> object
+ * @return the position at which the given <code>String</code> object
+ * begins, starting the search at the specified position;
+ * <code>-1</code> if the given <code>String</code> object is
+ * not found or the starting position is out of bounds; position
+ * numbering for the return value starts at <code>1</code>
+ * @throws SerialException if the {@code free} method had been
+ * previously called on this object
+ * @throws SQLException if there is an error accessing the Clob value
+ * from the database.
+ */
+ public long position(String searchStr, long start)
+ throws SerialException, SQLException {
+ isValid();
+ if (start < 1 || start > len) {
+ return -1;
+ }
+
+ char pattern[] = searchStr.toCharArray();
+
+ int pos = (int)start-1;
+ int i = 0;
+ long patlen = pattern.length;
+
+ while (pos < len) {
+ if (pattern[i] == buf[pos]) {
+ if (i + 1 == patlen) {
+ return (pos + 1) - (patlen - 1);
+ }
+ i++; pos++; // increment pos, and i
+
+ } else if (pattern[i] != buf[pos]) {
+ pos++; // increment pos only
+ }
+ }
+ return -1; // not found
+ }
+
+ /**
+ * Returns the position in this <code>SerialClob</code> object
+ * where the given <code>Clob</code> signature begins, starting
+ * the search at the specified position. This method returns
+ * <code>-1</code> if the pattern is not found.
+ *
+ * @param searchStr the <code>Clob</code> object for which to search
+ * @param start the position in this <code>SerialClob</code> object
+ * at which to begin the search; the first position is
+ * <code>1</code>; must not be less than <code>1</code> nor
+ * greater than the length of this <code>SerialClob</code> object
+ * @return the position at which the given <code>Clob</code>
+ * object begins in this <code>SerialClob</code> object,
+ * at or after the specified starting position
+ * @throws SerialException if an error occurs locating the Clob signature;
+ * if the {@code free} method had been previously called on this object
+ * @throws SQLException if there is an error accessing the Clob value
+ * from the database
+ */
+ public long position(Clob searchStr, long start)
+ throws SerialException, SQLException {
+ isValid();
+ return position(searchStr.getSubString(1,(int)searchStr.length()), start);
+ }
+
+ /**
+ * Writes the given Java <code>String</code> to the <code>CLOB</code>
+ * value that this <code>SerialClob</code> object represents, at the position
+ * <code>pos</code>.
+ *
+ * @param pos the position at which to start writing to the <code>CLOB</code>
+ * value that this <code>SerialClob</code> object represents; the first
+ * position is <code>1</code>; must not be less than <code>1</code> nor
+ * greater than the length of this <code>SerialClob</code> object
+ * @param str the string to be written to the <code>CLOB</code>
+ * value that this <code>SerialClob</code> object represents
+ * @return the number of characters written
+ * @throws SerialException if there is an error accessing the
+ * <code>CLOB</code> value; if an invalid position is set; if an
+ * invalid offset value is set; if number of bytes to be written
+ * is greater than the <code>SerialClob</code> length; or the combined
+ * values of the length and offset is greater than the Clob buffer;
+ * if the {@code free} method had been previously called on this object
+ */
+ public int setString(long pos, String str) throws SerialException {
+ return (setString(pos, str, 0, str.length()));
+ }
+
+ /**
+ * Writes <code>len</code> characters of <code>str</code>, starting
+ * at character <code>offset</code>, to the <code>CLOB</code> value
+ * that this <code>Clob</code> represents.
+ *
+ * @param pos the position at which to start writing to the <code>CLOB</code>
+ * value that this <code>SerialClob</code> object represents; the first
+ * position is <code>1</code>; must not be less than <code>1</code> nor
+ * greater than the length of this <code>SerialClob</code> object
+ * @param str the string to be written to the <code>CLOB</code>
+ * value that this <code>Clob</code> object represents
+ * @param offset the offset into <code>str</code> to start reading
+ * the characters to be written
+ * @param length the number of characters to be written
+ * @return the number of characters written
+ * @throws SerialException if there is an error accessing the
+ * <code>CLOB</code> value; if an invalid position is set; if an
+ * invalid offset value is set; if number of bytes to be written
+ * is greater than the <code>SerialClob</code> length; or the combined
+ * values of the length and offset is greater than the Clob buffer;
+ * if the {@code free} method had been previously called on this object
+ */
+ public int setString(long pos, String str, int offset, int length)
+ throws SerialException {
+ isValid();
+ String temp = str.substring(offset);
+ char cPattern[] = temp.toCharArray();
+
+ if (offset < 0 || offset > str.length()) {
+ throw new SerialException("Invalid offset in byte array set");
+ }
+
+ if (pos < 1 || pos > this.length()) {
+ throw new SerialException("Invalid position in Clob object set");
+ }
+
+ if ((long)(length) > origLen) {
+ throw new SerialException("Buffer is not sufficient to hold the value");
+ }
+
+ if ((length + offset) > str.length()) {
+ // need check to ensure length + offset !> bytes.length
+ throw new SerialException("Invalid OffSet. Cannot have combined offset " +
+ " and length that is greater that the Blob buffer");
+ }
+
+ int i = 0;
+ pos--; //values in the array are at position one less
+ while ( i < length || (offset + i +1) < (str.length() - offset ) ) {
+ this.buf[(int)pos + i ] = cPattern[offset + i ];
+ i++;
+ }
+ return i;
+ }
+
+ /**
+ * Retrieves a stream to be used to write Ascii characters to the
+ * <code>CLOB</code> value that this <code>SerialClob</code> object represents,
+ * starting at position <code>pos</code>. This method forwards the
+ * <code>setAsciiStream()</code> call to the underlying <code>Clob</code> object in
+ * the event that this <code>SerialClob</code> object is instantiated with a
+ * <code>Clob</code> object. If this <code>SerialClob</code> object is instantiated
+ * with a <code>char</code> array, a <code>SerialException</code> object is thrown.
+ *
+ * @param pos the position at which to start writing to the
+ * <code>CLOB</code> object
+ * @return the stream to which ASCII encoded characters can be written
+ * @throws SerialException if SerialClob is not instantiated with a
+ * Clob object;
+ * if the {@code free} method had been previously called on this object
+ * @throws SQLException if there is an error accessing the
+ * <code>CLOB</code> value
+ * @see #getAsciiStream
+ */
+ public java.io.OutputStream setAsciiStream(long pos)
+ throws SerialException, SQLException {
+ isValid();
+ if (this.clob != null) {
+ return this.clob.setAsciiStream(pos);
+ } else {
+ throw new SerialException("Unsupported operation. SerialClob cannot " +
+ "return a writable ascii stream\n unless instantiated with a Clob object " +
+ "that has a setAsciiStream() implementation");
+ }
+ }
+
+ /**
+ * Retrieves a stream to be used to write a stream of Unicode characters
+ * to the <code>CLOB</code> value that this <code>SerialClob</code> object
+ * represents, at position <code>pos</code>. This method forwards the
+ * <code>setCharacterStream()</code> call to the underlying <code>Clob</code>
+ * object in the event that this <code>SerialClob</code> object is instantiated with a
+ * <code>Clob</code> object. If this <code>SerialClob</code> object is instantiated with
+ * a <code>char</code> array, a <code>SerialException</code> is thrown.
+ *
+ * @param pos the position at which to start writing to the
+ * <code>CLOB</code> value
+ *
+ * @return a stream to which Unicode encoded characters can be written
+ * @throws SerialException if the SerialClob is not instantiated with
+ * a Clob object;
+ * if the {@code free} method had been previously called on this object
+ * @throws SQLException if there is an error accessing the
+ * <code>CLOB</code> value
+ * @see #getCharacterStream
+ */
+ public java.io.Writer setCharacterStream(long pos)
+ throws SerialException, SQLException {
+ isValid();
+ if (this.clob != null) {
+ return this.clob.setCharacterStream(pos);
+ } else {
+ throw new SerialException("Unsupported operation. SerialClob cannot " +
+ "return a writable character stream\n unless instantiated with a Clob object " +
+ "that has a setCharacterStream implementation");
+ }
+ }
+
+ /**
+ * Truncates the <code>CLOB</code> value that this <code>SerialClob</code>
+ * object represents so that it has a length of <code>len</code>
+ * characters.
+ * <p>
+ * Truncating a <code>SerialClob</code> object to length 0 has the effect of
+ * clearing its contents.
+ *
+ * @param length the length, in bytes, to which the <code>CLOB</code>
+ * value should be truncated
+ * @throws SerialException if there is an error accessing the
+ * <code>CLOB</code> value;
+ * if the {@code free} method had been previously called on this object
+ */
+ public void truncate(long length) throws SerialException {
+ isValid();
+ if (length > len) {
+ throw new SerialException
+ ("Length more than what can be truncated");
+ } else {
+ len = length;
+ // re-size the buffer
+
+ if (len == 0) {
+ buf = new char[] {};
+ } else {
+ buf = (this.getSubString(1, (int)len)).toCharArray();
+ }
+ }
+ }
+
+
+ /**
+ * Returns a {@code Reader} object that contains a partial
+ * {@code SerialClob} value, starting
+ * with the character specified by pos, which is length characters in length.
+ *
+ * @param pos the offset to the first character of the partial value to
+ * be retrieved. The first character in the {@code SerialClob} is at position 1.
+ * @param length the length in characters of the partial value to be retrieved.
+ * @return {@code Reader} through which the partial {@code SerialClob}
+ * value can be read.
+ * @throws SQLException if pos is less than 1 or if pos is greater than the
+ * number of characters in the {@code SerialClob} or if pos + length
+ * is greater than the number of characters in the {@code SerialClob};
+ * @throws SerialException if the {@code free} method had been previously
+ * called on this object
+ * @since 1.6
+ */
+ public Reader getCharacterStream(long pos, long length) throws SQLException {
+ isValid();
+ if (pos < 1 || pos > len) {
+ throw new SerialException("Invalid position in Clob object set");
+ }
+
+ if ((pos-1) + length > len) {
+ throw new SerialException("Invalid position and substring length");
+ }
+ if (length <= 0) {
+ throw new SerialException("Invalid length specified");
+ }
+ return new CharArrayReader(buf, (int)pos, (int)length);
+ }
+
+ /**
+ * This method frees the {@code SerialClob} object and releases the
+ * resources that it holds.
+ * The object is invalid once the {@code free} method is called.
+ * <p>
+ * If {@code free} is called multiple times, the subsequent
+ * calls to {@code free} are treated as a no-op.
+ * </P>
+ * @throws SQLException if an error occurs releasing
+ * the Clob's resources
+ * @since 1.6
+ */
+ public void free() throws SQLException {
+ if (buf != null) {
+ buf = null;
+ if (clob != null) {
+ clob.free();
+ }
+ clob = null;
+ }
+ }
+
+ /**
+ * Compares this SerialClob to the specified object. The result is {@code
+ * true} if and only if the argument is not {@code null} and is a {@code
+ * SerialClob} object that represents the same sequence of characters as this
+ * object.
+ *
+ * @param obj The object to compare this {@code SerialClob} against
+ *
+ * @return {@code true} if the given object represents a {@code SerialClob}
+ * equivalent to this SerialClob, {@code false} otherwise
+ *
+ */
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj instanceof SerialClob) {
+ SerialClob sc = (SerialClob)obj;
+ if (this.len == sc.len) {
+ return Arrays.equals(buf, sc.buf);
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Returns a hash code for this {@code SerialClob}.
+ * @return a hash code value for this object.
+ */
+ public int hashCode() {
+ return ((31 + Arrays.hashCode(buf)) * 31 + (int)len) * 31 + (int)origLen;
+ }
+
+ /**
+ * Returns a clone of this {@code SerialClob}. The copy will contain a
+ * reference to a clone of the internal character array, not a reference
+ * to the original internal character array of this {@code SerialClob} object.
+ * The underlying {@code Clob} object will be set to null.
+ *
+ * @return a clone of this SerialClob
+ */
+ public Object clone() {
+ try {
+ SerialClob sc = (SerialClob) super.clone();
+ sc.buf = (buf != null) ? Arrays.copyOf(buf, (int)len) : null;
+ sc.clob = null;
+ return sc;
+ } catch (CloneNotSupportedException ex) {
+ // this shouldn't happen, since we are Cloneable
+ throw new InternalError();
+ }
+ }
+
+ /**
+ * readObject is called to restore the state of the SerialClob from
+ * a stream.
+ */
+ private void readObject(ObjectInputStream s)
+ throws IOException, ClassNotFoundException {
+
+ ObjectInputStream.GetField fields = s.readFields();
+ char[] tmp = (char[])fields.get("buf", null);
+ if (tmp == null)
+ throw new InvalidObjectException("buf is null and should not be!");
+ buf = tmp.clone();
+ len = fields.get("len", 0L);
+ if (buf.length != len)
+ throw new InvalidObjectException("buf is not the expected size");
+ origLen = fields.get("origLen", 0L);
+ clob = (Clob) fields.get("clob", null);
+ }
+
+ /**
+ * writeObject is called to save the state of the SerialClob
+ * to a stream.
+ */
+ private void writeObject(ObjectOutputStream s)
+ throws IOException, ClassNotFoundException {
+
+ ObjectOutputStream.PutField fields = s.putFields();
+ fields.put("buf", buf);
+ fields.put("len", len);
+ fields.put("origLen", origLen);
+ // Note: this check to see if it is an instance of Serializable
+ // is for backwards compatibility
+ fields.put("clob", clob instanceof Serializable ? clob : null);
+ s.writeFields();
+ }
+
+ /**
+ * Check to see if this object had previously had its {@code free} method
+ * called
+ *
+ * @throws SerialException
+ */
+ private void isValid() throws SerialException {
+ if (buf == null) {
+ throw new SerialException("Error: You cannot call a method on a "
+ + "SerialClob instance once free() has been called.");
+ }
+ }
+
+ /**
+ * The identifier that assists in the serialization of this {@code SerialClob}
+ * object.
+ */
+ static final long serialVersionUID = -1662519690087375313L;
+}