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authorErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
committerErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
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+<?xml version="1.0" encoding="latin1" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+ <header>
+ <copyright>
+ <year>1999</year><year>2009</year>
+ <holder>Ericsson AB. All Rights Reserved.</holder>
+ </copyright>
+ <legalnotice>
+ The contents of this file are subject to the Erlang Public License,
+ Version 1.1, (the "License"); you may not use this file except in
+ compliance with the License. You should have received a copy of the
+ Erlang Public License along with this software. If not, it can be
+ retrieved online at http://www.erlang.org/.
+
+ Software distributed under the License is distributed on an "AS IS"
+ basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ the License for the specific language governing rights and limitations
+ under the License.
+
+ </legalnotice>
+
+ <title>Introduction to cosTransactions</title>
+ <prepared>Niclas Eklund</prepared>
+ <docno></docno>
+ <date>1999-04-26</date>
+ <rev></rev>
+ <file>ch_introduction.xml</file>
+</header>
+
+ <section>
+ <title>Overview</title>
+ <p>The cosTransactions application is a Transaction Service compliant with the <url href="http://www.omg.org">OMG</url>
+ Transaction Service CosTransactions 1.1.
+ </p>
+
+ <section>
+ <title>Purpose and Dependencies</title>
+ <p><em>cosTransactions</em> is dependent on <em>Orber version 3.0.1</em> or later(see the Orber
+ documentation), which provides CORBA functionality in an Erlang environment.</p>
+ <p><em>cosTransactions</em> is dependent on <em>supervisor/stdlib-1.7</em> or later.</p>
+ <p>Basically, cosTransaction implements a <em>two-phase commit protocol</em> and allows objects running
+ on different platforms to participate in a transaction.</p>
+ </section>
+
+ <section>
+ <title>Prerequisites</title>
+ <p>To fully understand the concepts presented in the
+ documentation, it is recommended that the user is familiar
+ with distributed programming, CORBA and the Orber application.
+ </p>
+ <p>Recommended reading includes <em>CORBA, Fundamentals and Programming - Jon Siegel</em> and <em>Open Telecom Platform Documentation Set</em>. It is also helpful to have read
+ <em>Concurrent Programming in Erlang</em> and, for example, <em>Transaction Processing: concepts and techniques - Jim Gray, Andreas Reuter</em>.</p>
+ <note>
+ <p>The cosTransaction application is compliant with the OMG CosTransactions specification 1.1. Using
+ other vendors transaction service, compliant with the OMG CosTransactions specification 1.0, may
+ not work since the <c>'TRANSACTION_REQUIRED', 'TRANSACTION_ROLLEDBACK'</c> and <c>'INVALID_TRANSACTION'</c>
+ exceptions have been redefined to be system exceptions, i.e., used to be transaction-specific ('CosTransactions_Exc').</p>
+ </note>
+ </section>
+ </section>
+</chapter>
+