Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (101)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (309)
Collections:
Other Resources:
Source Code for Connector/J 8.0.31 - User Impl
Where to get the Java source code for Connector/J 8.0 User Impl module?
✍: FYIcenter.com
Java source code files for Connector/J 8.0 User Impl module are:
⏎ com/mysql/cj/jdbc/Blob.java
/* * Copyright (c) 2002, 2020, Oracle and/or its affiliates. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License, version 2.0, as published by the * Free Software Foundation. * * This program is also distributed with certain software (including but not * limited to OpenSSL) that is licensed under separate terms, as designated in a * particular file or component or in included license documentation. The * authors of MySQL hereby grant you an additional permission to link the * program and your derivative works with the separately licensed software that * they have included with MySQL. * * Without limiting anything contained in the foregoing, this file, which is * part of MySQL Connector/J, is also subject to the Universal FOSS Exception, * version 1.0, a copy of which can be found at * http://oss.oracle.com/licenses/universal-foss-exception. * * This program 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 2.0, * for more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ package com.mysql.cj.jdbc; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.sql.SQLException; import com.mysql.cj.Constants; import com.mysql.cj.Messages; import com.mysql.cj.exceptions.ExceptionInterceptor; import com.mysql.cj.exceptions.MysqlErrorNumbers; import com.mysql.cj.jdbc.exceptions.SQLError; import com.mysql.cj.jdbc.result.ResultSetInternalMethods; import com.mysql.cj.protocol.OutputStreamWatcher; import com.mysql.cj.protocol.WatchableOutputStream; import com.mysql.cj.protocol.WatchableStream; /** * The representation (mapping) in the JavaTM programming language of an SQL BLOB value. An SQL BLOB is a built-in type that stores a Binary Large Object * as a column value in a row of a database table. The driver implements Blob using an SQL locator(BLOB), which means that a Blob object contains a logical * pointer to the SQL BLOB data rather than the data itself. A Blob object is valid for the duration of the transaction in which is was created. Methods in * the interfaces ResultSet, CallableStatement, and PreparedStatement, such as getBlob and setBlob allow a programmer to access an SQL BLOB value. The Blob * interface provides methods for getting the length of an SQL BLOB (Binary Large Object) value, for materializing a BLOB value on the client, and for * determining the position of a pattern of bytes within a BLOB value. This class is new in the JDBC 2.0 API. */ public class Blob implements java.sql.Blob, OutputStreamWatcher { // // This is a real brain-dead implementation of BLOB. Once I add streamability to the I/O for MySQL this will be more efficiently implemented // (except for the position() method, ugh). // /** The binary data that makes up this BLOB */ private byte[] binaryData = null; private boolean isClosed = false; private ExceptionInterceptor exceptionInterceptor; /** * Creates a Blob without data * * @param exceptionInterceptor * exception interceptor */ Blob(ExceptionInterceptor exceptionInterceptor) { setBinaryData(Constants.EMPTY_BYTE_ARRAY); this.exceptionInterceptor = exceptionInterceptor; } /** * Creates a BLOB encapsulating the given binary data * * @param data * data to fill the Blob * @param exceptionInterceptor * exception interceptor */ public Blob(byte[] data, ExceptionInterceptor exceptionInterceptor) { setBinaryData(data); this.exceptionInterceptor = exceptionInterceptor; } /** * Creates an updatable BLOB that can update in-place (not implemented yet). * * @param data * data to fill the Blob * @param creatorResultSetToSet * result set * @param columnIndexToSet * column index */ Blob(byte[] data, ResultSetInternalMethods creatorResultSetToSet, int columnIndexToSet) { setBinaryData(data); } private synchronized byte[] getBinaryData() { return this.binaryData; } @Override public synchronized java.io.InputStream getBinaryStream() throws SQLException { checkClosed(); return new ByteArrayInputStream(getBinaryData()); } @Override public synchronized byte[] getBytes(long pos, int length) throws SQLException { checkClosed(); if (pos < 1) { throw SQLError.createSQLException(Messages.getString("Blob.2"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } pos--; if (pos > this.binaryData.length) { throw SQLError.createSQLException(Messages.getString("Blob.3"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } if (pos + length > this.binaryData.length) { throw SQLError.createSQLException(Messages.getString("Blob.4"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } byte[] newData = new byte[length]; System.arraycopy(getBinaryData(), (int) (pos), newData, 0, length); return newData; } @Override public synchronized long length() throws SQLException { checkClosed(); return getBinaryData().length; } @Override public synchronized long position(byte[] pattern, long start) throws SQLException { throw SQLError.createSQLFeatureNotSupportedException(); } @Override public synchronized long position(java.sql.Blob pattern, long start) throws SQLException { checkClosed(); return position(pattern.getBytes(0, (int) pattern.length()), start); } private synchronized void setBinaryData(byte[] newBinaryData) { this.binaryData = newBinaryData; } @Override public synchronized OutputStream setBinaryStream(long indexToWriteAt) throws SQLException { checkClosed(); if (indexToWriteAt < 1) { throw SQLError.createSQLException(Messages.getString("Blob.0"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } WatchableOutputStream bytesOut = new WatchableOutputStream(); bytesOut.setWatcher(this); if (indexToWriteAt > 0) { bytesOut.write(this.binaryData, 0, (int) (indexToWriteAt - 1)); } return bytesOut; } @Override public synchronized int setBytes(long writeAt, byte[] bytes) throws SQLException { checkClosed(); return setBytes(writeAt, bytes, 0, bytes.length); } @Override public synchronized int setBytes(long writeAt, byte[] bytes, int offset, int length) throws SQLException { checkClosed(); OutputStream bytesOut = setBinaryStream(writeAt); try { bytesOut.write(bytes, offset, length); } catch (IOException ioEx) { SQLException sqlEx = SQLError.createSQLException(Messages.getString("Blob.1"), MysqlErrorNumbers.SQL_STATE_GENERAL_ERROR, this.exceptionInterceptor); sqlEx.initCause(ioEx); throw sqlEx; } finally { try { bytesOut.close(); } catch (IOException doNothing) { // do nothing } } return length; } public synchronized void streamClosed(byte[] byteData) { this.binaryData = byteData; } @Override public synchronized void streamClosed(WatchableStream out) { int streamSize = out.size(); if (streamSize < this.binaryData.length) { out.write(this.binaryData, streamSize, this.binaryData.length - streamSize); } this.binaryData = out.toByteArray(); } @Override public synchronized void truncate(long len) throws SQLException { checkClosed(); if (len < 0) { throw SQLError.createSQLException(Messages.getString("Blob.5"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } if (len > this.binaryData.length) { throw SQLError.createSQLException(Messages.getString("Blob.6"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } // TODO: Do this without copying byte[]s by maintaining some end pointer on the original data byte[] newData = new byte[(int) len]; System.arraycopy(getBinaryData(), 0, newData, 0, (int) len); this.binaryData = newData; } @Override public synchronized void free() throws SQLException { this.binaryData = null; this.isClosed = true; } @Override public synchronized InputStream getBinaryStream(long pos, long length) throws SQLException { checkClosed(); if (pos < 1) { throw SQLError.createSQLException(Messages.getString("Blob.2"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } pos--; if (pos > this.binaryData.length) { throw SQLError.createSQLException(Messages.getString("Blob.6"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } if (pos + length > this.binaryData.length) { throw SQLError.createSQLException(Messages.getString("Blob.4"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } return new ByteArrayInputStream(getBinaryData(), (int) pos, (int) length); } private synchronized void checkClosed() throws SQLException { if (this.isClosed) { throw SQLError.createSQLException(Messages.getString("Blob.7"), MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, this.exceptionInterceptor); } } }
⏎ com/mysql/cj/jdbc/Blob.java
Or download all of them as a single archive file:
File name: mysql-connector-java-user-impl-8.0.31.zip File size: 429580 bytes Release date: 2022-09-03 Download
⇒ Downloading mysql-connector-java-5.1.40.zip
⇐ Source Code for Connector/J 8.0.31 - User API
2023-05-09, 7615👍, 0💬
Popular Posts:
How to download and install Apache XMLBeans Source Package? The source package contains Java source ...
iText is an ideal library for developers looking to enhance web- and other applications with dynamic...
Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java"....
ANTLR is a powerful parser generator for multiple programming languages including Java. ANTLR contai...
If you are a Java developer, it is very often that you need to use some 3rd party libraries to perfo...