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WS-BPEL 2.0 Beginner's Guide

You're reading from   WS-BPEL 2.0 Beginner's Guide Design and develop WS-BPEL executable business processes using Oracle SOA Suite 12c

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Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781849688963
Length 388 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (14) Chapters Close

Preface 1. Hello BPEL FREE CHAPTER 2. Service Invocation 3. Variables, Data Manipulation, and Expressions 4. Conditions and Loops 5. Interaction Patterns in BPEL 6. Fault Handling and Signaling 7. Working with Scopes 8. Dynamic Parallel Invocations 9. Human Tasks 10. Events and Event Handlers 11. Compensations A. Pop Quiz Answers Index

Chapter 4. Conditions and Loops

Conditions and loops are important constructs in every programming language. Conditions allow us to implement branches. Loops provide the possibility for the code to execute more than once. In this chapter, we will look at conditions and loops in BPEL. We will look at the if/elseif/else activity, which is how conditions are expressed in BPEL. For loops, BPEL has more options. We will become familiar with while, repeat until, and for each loops. We will also explain which to use when. We will look into the detailed syntax of each loop and learn when to use parallel loops.

In this chapter, we will take a closer look at the if/elseif/else activity and at the various loop activities provided by BPEL. As we move along the chapter, we will cover the following topics:

  • Understanding conditions and learning how to use the <if> activity
  • Understanding loops
  • Getting familiar with the <while> loop
  • Getting familiar with the <repeatUntil> loop
  • Getting...
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