This chapter introduces you to XStream, a new feature in Oracle Database 11g Release 2 (11.2). XStream enables information sharing with outstanding performance and usability.
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This chapter contains the following topics:
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About XStream
XStream consists of Oracle Database components and application programming interfaces (APIs) that enable client applications to receive data changes from an Oracle database and send data changes to an Oracle database. These data changes can be shared between Oracle databases and other systems. The other systems include non-Oracle databases, non-RDBMS Oracle products, file systems, third party software applications, and so on. A client application is designed by the user for specific purposes and use cases.
XStream consists of two major features: XStream Out and XStream In. XStream Out provides Oracle Database components and APIs that enable you to share data changes made to an Oracle database with other systems.
Figure 1-1 XStream Out
Description of 'Figure 1-1 XStream Out'
XStream In provides Oracle Database components and APIs that enable you to share data changes made to other systems with an Oracle database.
Figure 1-2 XStream In
Description of 'Figure 1-2 XStream In'
XStream is built on the infrastructure of Oracle Streams. Therefore, XStream inherits the flexibility and functionality of Oracle Streams, including:
The logical change record (LCR) format for streaming database changes
An LCR is a message with a specific format that describes a database change. If the change was a data manipulation language (DML) operation, then a row LCR encapsulates each row change resulting from the DML operation. One DML operation might result in multiple row changes, and so one DML operation might result in multiple row LCRs. If the change was a data definition language (DDL) operation, then a single DDL LCR encapsulates the DDL change.
Filtering of database changes at the database level, schema level, table level, and row/column level
Rules and rule sets that control behavior, including inclusion and exclusion rules
Rule-based transformations that modify captured data changes
Support for the data types supported by Oracle Streams, including LOBs,
LONG,LONGRAW, andXMLTypeCustomized configurations, including multiple inbound streams to a single database instance, multiple outbound streams from a single database instance, multiple outbound streams from a single capture process, and so on
Full-featured apply for XStream In, including apply parallelism for optimal performance, SQL generation, conflict detection and resolution, error handling, and customized apply with apply handlers
Note:
In both XStream Out and XStream In configurations, the client application must use a dedicated server connection.Note:
When learning about and using XStream, a general knowledge of Oracle Streams concepts is helpful. See the following documents for conceptual information about Oracle Streams:Oracle Database 2 Day + Data Replication and Integration Guide contains basic conceptual information about Oracle Streams
Oracle Streams Concepts and Administration contains detailed conceptual information about Oracle Streams
See Also:
Purpose of XStream
By using XStream, you can accomplish the following goals:
Replicate data changes
Replication is generally used to improve availability and to improve performance by spreading the network load over multiple regions and servers. XStream enables you replicate data changes made to an Oracle database with other Oracle databases and with non-Oracle data sources.
Store data changes in files
Some environments use files to store data changes for various reasons. For example, an environment might use files to store data changes if the environment does not have a physical network, if the environment uses disconnected computing, or if the environment uses satellite communications. After data changes are stored in files, the changes can be processed in any customized way by applications.
Share data changes with a client-side memory cache
Some environments share data changes with a client-side memory cache to improve performance.
Prerequisites for XStream
Using the XStream APIs requires purchasing a license for the Oracle GoldenGate product. See the documentation for the Oracle GoldenGate product for more information:
In addition, this document assumes that you have the following skills:
Knowledge of relational database concepts and Oracle Database concepts
XStream includes components that run in an Oracle database. To use XStream successfully, you must be able to administer an Oracle Database.
See Oracle Database Concepts for information about this topic.
Knowledge of distributed databases
An XStream environment includes multiple data sources, including Oracle databases and non-Oracle data sources. You should understand distributed database concepts before using XStream.
See Oracle Database Administrator's Guide for information about this topic.
Knowledge of SQL and PL/SQL
To administer an Oracle database and the XStream components running in an Oracle database, you must know how to use SQL and PL/SQL.
See Oracle Database SQL Language Reference, Oracle Database PL/SQL Language Reference, and Oracle Database PL/SQL Packages and Types Reference for information about this topic.
Knowledge of application programming
XStream Out sends data changes to a client application for processing. XStream In receives data changes from a client application. You use the Oracle Call Interface (OCI) API or the Java API to create a client application that communicates with XStream.
See Oracle Call Interface Programmer's Guide for information about the OCI API.
See Oracle Database 2 Day + Java Developer's Guide and Oracle Database Java Developer's Guide for information about the Java API.
Tasks and Tools for XStream
This section describes the common tasks you perform for XStream and the tools to use to complete the tasks.
This section contains the following topics:
XStream Tasks
The common tasks for XStream are the following:
Configure XStream
Configuring XStream involves preparing an Oracle Database for XStream, creating the Oracle Database components used by XStream, and creating one or more client applications that communicate with the Oracle Database.
See Chapter 4, 'Configuring XStream' for information about this task.
Administer XStream
Administering XStream involves managing the Oracle Database components used by XStream. It also involves managing the rules and rule sets used by these components. It might also require modifications to a client application.
See Chapter 5, 'Managing XStream' for information about this task.
Monitor XStream
Monitoring XStream involves viewing Oracle Enterprise Manager pages related to XStream and querying data dictionary views related to XStream.
See the Oracle Enterprise Manager online help and Chapter 6, 'Monitoring XStream' for information about this task.
XStream Tools
Use the following tools to complete the tasks for XStream:
SQL and PL/SQL
You can use SQL and PL/SQL to configure, administer, and monitor XStream. SQL enables you to create an XStream administrator and monitor XStream using data dictionary views. Several Oracle-supplied PL/SQL packages enable you to configure and manage XStream.
See Oracle Database SQL Language Reference, Oracle Database PL/SQL Language Reference, and Oracle Database PL/SQL Packages and Types Reference for information about this topic.
Oracle Enterprise Manager
You can use Enterprise Manager to manage and monitor XStream components. You can also use Enterprise Manager to view information about the LCRs that are streaming in an XStream configuration.
See the Enterprise Manager online help for more information about this topic.
The OCI API and Java API
You can use the XStream OCI API and XStream Java API to create client application that communicate with XStream. These applications can work with XStream Out to stream LCRs out of an Oracle Database, and these applications can work with XStream In to stream LCRs into an Oracle Database.
See Part IV, 'XStream OCI API Reference' for information about the XStream OCI API, and see Oracle Call Interface Programmer's Guide for information about the OCI API.
See Oracle Database XStream Java API Reference for information about the XStream Java API, and see Oracle Database 2 Day + Java Developer's Guide and Oracle Database Java Developer's Guide for information about the Java API.
This step-by-step tutorial teaches you how to install Kodi 18 Leia on Firestick / Fire TV, Windows, Mac, and other Android devices. This Kodi 18 Install tutorial also has up-to-date Direct Download links for the Official Kodi 18 Install files included for each of these operating systems. The Kodi 18 codename of Leia was chosen not in the typical community-driven lottery, but in honor of the late Carrie Fisher (Princess Leia) of Star Wars fame.
UPDATE: I updated this page today for Kodi 18 Beta 3! See the Kodi 18 download links for each operating system below.
WARNING: Kodi 18 is still in a pre-release development stage. The nightly builds have attained massive improvements in stability over the past few months, yet it lacks full readiness for prime-time. DO NOT INSTALL KODI 18 BETA OVER KODI 17 unless you acknowledge that your entire Kodi installation could become unusable (and need to be erased or reset). So, only install Kodi 18 if you enjoy tinkering and experimenting with cutting-edge software and don’t mind the occasional bug. Install Kodi 18 at your own risk. Kodi 18 Alpha is not yet intended for normal, every day Kodi use – only as a “preview” or proof of concept allowing TV addons and Kodi Builds developers to test their work on Kodi 18 Beta. Until Kodi 18 Final Version is released, enjoy the last Kodi 17 Krypton release: Kodi 17.6 Krypton.
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In this article, you’ll first see Kodi 18 download links, then a step-by-step walk-through on How to Install Kodi 18 on Firestick. After that, I show you How to Install Kodi 18 Looking Glass Wizard along with working builds and some more details about Kodi 18.
Contents
- 2 Kodi 18 Install on Firestick
- 3 How to Install Kodi 18 Wizards
Kodi 18 Download Links for 2018
- Download Kodi 18 Firestick & Fire TV version (beta 3!) ..(Or download the “older” Kodi 18 beta .APK file beta download for Android smartphones, tablets & TV boxes). Scroll down past this Download Links section to install Kodi 18 on Firestick. (Or, if you already know how to install Kodi on Firestick, then just enter the address http://bit.ly/kodi18beta3apk into the “Downloader” app’s “Address” field.)
Kodi 18 Install on FireStick & Fire TV (.APK file download)
- Kodi 18 Windows 32-bit Beta 3 download (for older Windows PCs) (Or download the .exe file for the “older” beta of Kodi 18). To install Kodi 18 Beta in Windows 32-bit (x86) versions, just download the EXE file, run it, and follow the installer on your screen. You can also download the latest Kodi 18 (32-bit) version by entering http://bit.ly/kodi18beta3x86 into your web browser.
Download Kodi 18 for “older” Windows PCs and laptops
- Kodi 18 Windows 64-bit Beta 3 download (for newer Windows PCs) (Or download the .exe file of the “older” Kodi 18 beta) . Kodi 18 64-Bit version is ALL NEW in Kodi 18. Krypton, Jarvis, and all Kodi versions prior to 18 have had no x64 version! Install Kodi 18 64-bit by downloading the EXE file – then just run the EXE file to start the Kodi 18 Windows installer. You can also download the latest version of Kodi 18 (64-bit) by entering http://bit.ly/kodi18beta3x64 into your web browser.
- Kodi 18 for Mac OSX (.dmg file beta download for x86 / x64 based Mac OS computers). For installing Kodi 18 on Mac OS, just launch the .dmg file.
Download Kodi 18 Mac OSX (.dmg file)
- Kodi 18 Beta 3 Android APK download (Or download the “older” Kodi 18 beta.apk file beta download for Android smartphones, tablets & TV boxes). Kodi 18 Android is easy to install: just download the .APK file and run it on your Android device! You can simply open the web browser on your Android device then enter http://bit.ly/kodi18beta3apk to download the Kodi 18 APK.
Kodi 18 Install on Firestick
Use the Kodi 18 Install video (below) or the step-by-step written instructions (further below) to Install Kodi 18 on FireStick in just a few minutes.
- Download Kodi 18 for Firestick by first getting the “Downloader” app on your Firestick – then enter http://bit.ly/kodi18beta3apk into the Downloader app to download Kodi 18.
Kodi 18 Install on Firestick Video
This video has become a bit dated, but still retains a lot of value to experienced Kodi users just needing a refresher. Note that this video uses the now-defunct Ares Wizard. Read the tutorial below the video for installing Kodi 18 on the Fire Stick. After that, follow along with some up-to-date instructions involving other wizards and especially the Looking Glass Wizard. This includes builds especially tuned to the latest releases of Kodi 18! A new video tutorial will post very soon as Kodi 18 readies for launch.
Our Step-by-Step Tutorial Guide on How to install Kodi 18 on Firestick
- From the Firestick / Fire TV homescreen, go to Settings, then System.
- Now go to Developer Options, then turn on Apps From Unknown Sources and Enable ADB Debugging.
- Then return to the Firestick home screen by pressing the Home button on your Fire TV remote.
- Now go to Search (which may be a magnifying glass icon) from the Firestick home screen
- Then enter “Downloader“. After you enter the word “Downloader”, select the word Downloader using the arrows on the Fire TV remote and the “Center” button.
- In the search results, select “Apps & Games“.
- Then select Downloader
- Now select Install
- Then press Open
- Enterhttps://tinyurl.com/kodi18beta in the Address field of the Downloader app
- Select the “Download” button
- Wait for Kodi 18 to download.
- When the download finishes, select “Install,” then “Yes“.
- After Kodi 18 finishes installing, then choose the “Open” option to launch Kodi.
- Once Kodi 18 starts up and you see the Kodi 18 home screen, then install one of the great Kodi 18 builds or Kodi addons to start streaming great content!
How to Install Kodi 18 Wizards
I installed the Looking Glass Wizard on Kodi 18 Firestick by following my Looking Glass Wizard Install and Setuptutorial & guide. The Looking Glass Wizard installs and runs fine on Kodi 18!
How to Install Kodi 18 Builds
I then used the Looking Glass Wizard to install the TaQ 18 build for Kodi 18 Firestick. I will get a video of this process up right away and change this message when I do.
After Kodi starts back up into the TaQ 18 build, make sure to give it plenty of time to complete the build configuration and updates.
Kodi 18 Install FireStick version
- Download Kodi 18 for FireStick here at http://tinyurl.com/kodi18beta.
Get Kodi 18 Firestick by clicking on this download link. This will download the Kodi 18 Firestick APK file, which is simply just the Kodi 18 installer file. Note this link downloads the latest nightly build available on January 19, 2018. So, there were a few ways to install Kodi 18 on FireStick without breaking a sweat.
What Operating Systems Does Kodi 18 Beta / Alpha Support?
See the top of this page for the download links for each of the Kodi 18 operating systems below:
- Kodi 18 is available for Windows 32-bit computers
- You can also get Kodi 18 for Windows 64-bit computers now!
- For Macs and Macbooks, get Kodi 18 for Mac OSX
- Kodi 18 Android works on Android mobile phones, tablets, and Android TV Boxes (including the Fire Stick and Fire TV, of course)
Kodi 18 Alpha vs Beta
What stage is Kodi 18 currently in?
Kodi 18 (at the time of writing this article) is actually in Alpha phase according to some pointers within the codebase. No, not like Street Fighter Alpha – more like the Greek letter Alpha, which means “the beginning”. But, Kodi 18 Alpha still works surprisingly well, even though it’s still in its pre-release (or “development”) stages!
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According to other markers, such as the directory the Kodi 18 installer sets up to install Kodi 18 in, it has already entered beta with no real fanfare. So, the difference between Kodi 18 Alpha and Kodi 18 Beta will most likely be unnoticeable, since Kodi usually has relatively “small” user interface updates from Alpha stage to Beta stage.
Kodi 18 Install (Alpha – on Amazon FireStick)
I just now did a Kodi 18 Install & download process (aka Kodi 18 Beta) onto my FireStick and installed the TeverZ Ultra Build in about 10 minutes flat. This is another of the community builds tailored especially for Kodi 18 within the Looking Glass Wizard.
In case you missed it, I created an easy-to-enter link for you to download Kodi 18 Firestick version for use with this KFire TV install guide. Here’s the link:
- http://tinyurl.com/kodi18beta. This short URL helps immensely when typing into the Fire Stick to install Kodi 18 Firestick Beta.
Simply download and install the Downloader app on your Fire Stick by getting it from the Fire TV app store. Then, launch Downloader and enter the Kodi 18 Firestick download link above (http://tinyurl.com/kodi18beta).
Kodi 18 Release Date
The XBMC camp has not leaked a release date for Kodi 18 yet, and probably won’t until its actual release date. From the way major releases have happened in the past, I expect the Kodi 18 official release to be dropping sometime in either very late January or early February of 2018.
What’s New in Kodi 18?
As I check out Kodi 18 to find the difference between Kodi 17 and Kodi 18, I’ll update this section of this page with my notes. For now, here’s what I observed about Kodi 18 vs Kodi 17 Krypton:
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- Kodi 18 now has a 64-bit version available for newer Windows PCs and laptops! This is totally new for Kodi, as Kodi has only been available in 32 bit versions until now! Kodi 18 is the first version of Kodi to include an “x64” release (aka “64-bit”). What does that mean? Kodi takes advantage of the fast processing power of the 64-bit CPU architecture in newer PCs. Therefore, you should see better playback, less buffering, and more streaming!
Check back later as I update this page with more Kodi 18 details. It will also get a complete overhaul and rewrite when Kodi 18 releases officially.