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Informix User Forum 2005
Moving Forward With Informix
Cloudscape –
Past and Present
Frank Koconis
Advisory Software Engineer/IBM
Atlanta, Georgia
December 8-9, 2005
1
IBM Software Group | DB2 Information Management Software
Outline
 History
 Key Features
 Deployment Options: single- or multi-user
 Running on Small Devices (J2ME)
 Development environments for Cloudscape
 Cloudscape as a Development Database
 Synchronization with Enterprise Databases
 Derby is Cloudscape
 Summary
IBM Software Group | DB2 Information Management Software
What is Cloudscape?
An embeddable, lightweight, relational SQL
database engine for Java.
IBM Software Group | DB2 Information Management Software
History
 Cloudscape, Inc. founded in 1996 by a team of experts
from Informix, Illustra, Oracle and Sybase
 Purchased in September of 1999 by Informix
Corporation
 Acquired by IBM with Informix purchase in July of 2001
 Released by IBM as open source (“Derby”) in
September of 2004
IBM Software Group | DB2 Information Management Software
Cloudscape- Key Features
IBM Software Group | DB2 Information Management Software
Cloudscape- Key Features
 100% Pure Java
 Completely portable to any hardware, any OS
 Only requires JVM (J2SE 1.3 or higher)
 Embeddable
 Can be installed as a JAR file (as part of a Java application)
 Can be started within an application
 Installation, startup and shutdown are invisible to user
 Fully-functional RDBMS
 Adheres to standards
 JDBC
 SQLJ
 ANSI SQL-92
IBM Software Group | DB2 Information Management Software
Key Features (continued)
 "Zero" Administration
 No need for DBA at customer site
 Users may even be unaware that a database engine is present
 Lightweight
 Approx. 2MB “footprint”
 Can run on many “palm”-size devices (new feature!)
 Scales to Moderate Size
 No defined limits on table sizes
 Table size limit of 2GB in some environments (OS limit)
 Existing customer databases of >10 GB working well
 Supports Disk Encryption
 Tested with IBM JCE
IBM Software Group | DB2 Information Management Software
Key Features (continued)
 Easy for Application Developers to Use
 To set up, just copy Cloudscape JAR files and set Java
CLASSPATH
 Database engine starts automatically when application attempts to
connect to it
 Cloudscape databases are completely portable
 To move a Cloudscape database to another machine, just copy it!
(This works even if the machines have different OS or hardware!)
 Distributed transaction support (new!)
 Participates in XA transactions with other database systems
IBM Software Group | DB2 Information Management Software
Cloudscape is a Fully-Functional RDBMS
 Indexes
 Views
 Triggers and Stored Procedures
 Constraints (primary-key, foreign-key, unique, check)
 Concurrency Support
 Transactions (with crash recovery)
 Savepoints
 Row-level locking, with escalation
 JDBC isolation levels (including dirty-read)
 Scrollable Cursors (result sets)
 Cascading Delete
 Internationalization/Localization Support
IBM Software Group | DB2 Information Management Software
IBM Products Using Cloudscape
 WebSphere (WSAD and WAS)
 Cloudscape used for sample applications
 Can handle pooling of Cloudscape connections
 Tivoli Monitor and Tivoli Storage Area Network Manager
 Both use embedded Cloudscape
 Lotus LearningSpace
 Uses embedded Cloudscape
 IBM Workplace Client
 Uses embedded Cloudscape
 Many others deployed and under development
IBM Software Group | DB2 Information Management Software
Deployment Options: single- or multi-user
IBM Software Group | DB2 Information Management Software
Apache Derby Architecture
 Two Deployment Options
Embedded
• Derby disappears into the application
• Zero Admin
Network Server
• Familiar client-server architecture
• Low Admin
 Additional Option for Development
 Embedded Network Server
IBM Software Group | DB2 Information Management Software
Cloudscape Architecture: Embedded
Java Virtual Machine
(JVM)
Application
JDBC
• Database only accessible from single JVM
• Java/JDBC only
• No network connectivity
• Any number of concurrent connections
from any number of threads in this JVM
•Typically a single application
(but could be multiple)
Derby engine
Database(s) on disk
IBM Software Group | DB2 Information Management Software
Cloudscape Architecture: Network Server
Java Virtual Machine
(JVM)
-Multiple Client applications
-Remote or local
Derby Network
Server
Derby engine
Client Applications via
Derby Network Client
DB2 Universal JDBC Driver
(JCC)
CCC (CLI/ODBC)
PHP / Perl on top of ODBC
Database(s) on disk
IBM Software Group | DB2 Information Management Software
Running on Small Devices (J2ME)
IBM Software Group | DB2 Information Management Software
J2ME/CDC/Foundation
 J2ME – Java 2 Micro Edition
 CDC – Connected Device Configuration
 Foundation Profile 1.0
 Set of java core libraries supported
 Sub-set of J2SE 1.3
 Set-top boxes, embedded servers, cash registers
 PDA’s starting to use J2ME/CDC/FP
 Not cell-phones, that’s J2ME/CLDC/MIDP
 Uses subset of JDBC 3.0 (JSR-169)
 Look for the abbreviation: J2ME/CDC/FP
IBM Software Group | DB2 Information Management Software
Cloudscape on J2ME
 Same Jar file – derby.jar
10.1 supports J2SE 1.3, 1.4, J2SE 5.0, J2ME/CDC/FP
J2ME/CDC/FP is new for 10.1
 Only Cloudscape embedded supported
 Application development expected to be on J2SE
 Network Server, Client, JCC not supported in J2ME
 On-disk database format remains unchanged
Can copy unencrypted databases between J2ME, J2SE and J2EE
IBM Software Group | DB2 Information Management Software
How do you tell that it’s J2ME?
 Sysinfo will report J2ME info
------------------ Java Information -----------------Java Version:
J2ME Foundation Specification v1.0
Java Vendor:
IBM Corporation
Java home:
c:\_work\p4\djdt1\wctme5.7\ive
Java classpath:
c:/_work/svn_clean/trunk/classes;c:/_work/svn_clean/trunk/tools/java/jakarta-oro2.0.8.jar
OS name:
Windows XP
OS architecture: x86
OS version:
5.1 build 2600 Service Pack 1
Java user name: djd
Java user home: C:\Documents and Settings\Administrator
Java user dir:
C:\_work\svn_clean\trunk\systest\out
java.specification.name: J2ME Foundation Specification
java.specification.version: 1.0
--------- Derby Information -------JRE - JDBC: J2ME - JDBC for CDC/FP 1.0
[C:\_work\svn_clean\trunk\classes] 10.2.0.0 alpha - (220112M)
---------------------------------------------------------------------- Locale Information ----------------…
IBM Software Group | DB2 Information Management Software
Development Environments for Cloudscape
IBM Software Group | DB2 Information Management Software
Derby Eclipse Plug-In
Integrates with Eclipse





Manage network server
Run ij
Execute sql scripts
Run sysinfo
Create and run database
applications
IBM Software Group | DB2 Information Management Software
Cloudscape Workbench
Eclipse Rich Client Platform (RCP)
 stand alone
 only ~25 meg



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

Browse database
Create objects
Insert/update/delete
Extract/load tables
Generate DDL
Migrate Derby to DB2
IBM Software Group | DB2 Information Management Software
Gluecode SE
Lightweight Java App Server
 Apache Geronimo
 J2EE 1.4
 Apache Derby
 Messaging Services (ActiveMQ)
 Management Console
IBM Software Group | DB2 Information Management Software
Other Development Options
 C/C++
 PHP
 Zend core: http://www-306.ibm.com/software/data/info/zendcore/
 Perl
 Python
 Other languages (ODBC through Network Server)
IBM Software Group | DB2 Information Management Software
Cloudscape as a Development Database
IBM Software Group | DB2 Information Management Software
Cloudscape as a Development Database

The problem
 Developers on large projects need a database for unit testing
 Usual practice: a development database (such as IDS) on a server

However, this has many disadvantages
 Must pay for database license (IDS or DB2 UDB) on server
 Requires a DBA to set up and administer the development
database
 BIGGEST PROBLEM: Whenever one developer “trashes” the
database, work stops for everyone, and the DBA must rush to fix it!
IBM Software Group | DB2 Information Management Software
Cloudscape as a Development Database (cont.)

A better solution: A Cloudscape database for each
developer
 Create a “master” database, then copy onto developer workstations
 If any developer “trashes” it, he/she just re-copies from the master!
 No DBA required, and other developers are not affected!

Later, when modules are integrated, switch to
“enterprise” database (IDS, DB2 UDB, Oracle, etc.)
IBM Software Group | DB2 Information Management Software
Synchronization with Enterprise Databases
IBM Software Group | DB2 Information Management Software
Synchronization with Enterprise Databases
 Java sync client for Cloudscape
 Works with DB2Everyplace Sync Server
 100% Java
 Synchronize Cloudscape clients to any database
supported by DB2E Sync Server, including Cloudscape
 DB2 UDB V7 and V8; also DB2 on zSeries and iSeries
 IBM Informix (IDS)
 Oracle
 MS SQL Server
 Sybase
 IBM Cloudscape
IBM Software Group | DB2 Information Management Software
DB2 Everyplace Sync Server Architecture
IBM Software Group | DB2 Information Management Software
DB2 Everyplace Sync Server- Key Features

Efficient 2-way synchronization
 Supports most server databases (DB2 UDB, IDS, Lotus Domino,
Oracle, SQL Server, Sybase and Cloudscape) on many platforms
 Optimized, secure transmission (56-bit or 128-bit encryption)

Centralized administration






Data subscription by user or group, with data filtering
Customizable conflict resolution (using “user exits”)
Automatic distribution of data, files and applications
Monitor synchronization progress in real-time
Zero administration on mobile device
Scalable
 Supports WAS Server Groups for high availability and scalability
 Automatic upgrades of client database software
IBM Software Group | DB2 Information Management Software
Derby is Cloudscape
IBM Software Group | DB2 Information Management Software
IBM Cloudscape based on Open-source Apache
Derby
 IBM contributed Cloudscape relational database
technology to Apache Software Foundation
 Derby
 Accepted as Apache Incubator Project in August ’04
Derby
 No “viral” open source licensing issues with
either Apache Derby or IBM Cloudscape
 No fee required by Apache or IBM
IBM Software Group | DB2 Information Management Software
IBM Cloudscape based on Open Source Apache
Derby
 Apache Derby milestones
 Sun Microsystems Engineers join Derby project Q2’05
 Graduates from Apache Incubator in July 2005
 Apache Derby 10.1 available in July 2005
 IBM ships Cloudscape 10.1 in August 2005
 Sun announces plans to ship Derby with
Derby
 NetBeans development tool
 Java Enterprise System application and portal servers
 Still no “viral” open source licensing issues
with either Apache Derby 10.1 or IBM
Cloudscape 10.1
IBM Software Group | DB2 Information Management Software
Apache Derby? IBM Cloudscape?
Apache Derby
 Complete relational database
 Standards-based





Small footprint
Zero admin
Secure
Open Source
Apache 2.0 License
IBM Cloudscape
 Installers
 IBM Java Runtime (JRE)
 Examples and scripts
 DB2 Universal JDBC Driver
 Support for ODBC & PHP
 Eclipse plug-ins
Database browsing
DB2 migration
 Translated error messages and
manuals (9 languages)
 Technical Support
IBM Software Group | DB2 Information Management Software
Distribution Strategies
 Apache Derby
 Available at Apache from the Apache DB Project
 Bundled in Sun, Eclipse, Linux, and other distributions
 IBM Cloudscape: Based on Apache Derby
 No-charge download of IBM Cloudscape binary from
www.ibm.com/developerworks/cloudscape
•
Application developer support via IBM developerWorks
− Manuals, How-To Articles, Forums, …
 Fully Supported Product Version
− Full IBM 24x7 IBM Support Available
Open Source Via Derby
Downloadable from IBM
Derby
Fully Supported IBM Product
IBM Software Group | DB2 Information Management Software
Cloudscape- Summary
 100% Java
 Full RDMS functionality with a small footprint
 Embeddable
 Zero-admin
 Standards-compliant
 Low-cost development
 Open-source
IBM Software Group | DB2 Information Management Software
For More Information
 Apache Derby web site
 http://db.apache.org/derby
 Apache Derby mail lists
 http://db.apache.org/derby/derby_mail.html
 developerWorks Cloudscape Zone
 http://www.ibm.com/developerworks/cloudscape/
 Documentation
 http://publib.boulder.ibm.com/infocenter/cldscp10/index.jsp
IBM Software Group | DB2 Information Management Software
For More Information (continued)
 Samples:
 https://w3.opensource.ibm.com/horde/chora/cvs.php/db2drv/php/p
hp/tests
 PHP Driver & Zend Core Information
 http://www-306.ibm.com/software/data/info/zendcore/
 http://www128.ibm.com/developerworks/db2/library/techarticle/dm0507hutchison/
 http://livedocs.phpdoc.info/index.php?l=en&q=ref.ibm-db2
 http://cvs.php.net/co.php/pecl/ibm_db2
 http://cvs.php.net/pecl/ibm_db2
IBM Software Group | DB2 Information Management Software
Coming Soon New Book (Due in November):
Apache Derby -- Off to the Races
 Includes Details of IBM Cloudscape (Hardcover)
 By Paul C. Zikopolous, George Baklarz, Dan Scott
 ISBN 0131855255
 http://www.devx.com/IBMDB2/Link/29722
Informix User Forum 2005
Moving Forward With Informix
Cloudscape –
Past and Present
Frank Koconis
[email protected]
Atlanta, Georgia
December 8-9, 2005
40