Internal presentation given at a Zystems event at the Gothenburg office in 2008.

1. WebSphere Message Broker v6.x Overview 2008-01-09 Zystems Gothenburg Mårten Gustafson Zystems

4. New in WMBv6.1

11. WMBv6.x Java Compute Node

13. WMBv6.x - Java Compute Node Overview

14. WMBv6.x - Java Compute Node Overview In

15. WMBv6.x - Java Compute Node Overview Failure

16. WMBv6.x - Java Compute Node Overview Out

17. WMBv6.x - Java Compute Node Overview Alternate

24. WMBv6.x - Java Compute Node Accessing the tree using object API (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

25. WMBv6.x - Java Compute Node Accessing the tree using object API assembly.getMessage();

26. WMBv6.x - Java Compute Node Accessing the tree using object API MbElement xmlnsc = assembly.getMessage().getRootElement().getLastChild();

27. WMBv6.x - Java Compute Node Accessing the tree using object API MbElement xmlnsc = assembly.getMessage().getRootElement().getLastChild(); MbElement chapter = xmlnsc.getFirstChild().getFirstChild();

28. WMBv6.x - Java Compute Node Accessing the tree using object API public class SampleFlow_JavaCompute extends MbJavaComputeNode { public void evaluate(MbMessageAssembly assembly) throws MbException { MbElement xmlnsc = assembly.getMessage().getRootElement().getLastChild(); MbElement chapter = xmlnsc.getFirstChild().getFirstChild(); } }

29. WMBv6.x - Java Compute Node MbElement object (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) ) MbElement chapter = xmlnsc.getFirstChild().getFirstChild(); chapter.getName(); // Returnerar ”chapter” chapter.getValue(); // Returnerar ”This is chapter one” chapter.getType(); // Returnerar MbElement.TYPE_NAME_VALUE chapter.getSpecificType(); // Returnerar 0x3000000 (XMLNSC-typkoden för element) chapter.setName(”foo”); chapter.setValue(”bar”); …

30. WMBv6.x - Java Compute Node ESQL equivalents getMessage().getRootElement() InputRoot getMessage().getRootElement() .getLastChild() InputBody getLocalEnvironment().getRootElement() InputLocalEnvironment getGlobalEnvironment().getRootElement() Environment getExceptionList().getRootElement() InputExceptionList

32. WMBv6.x - Java Compute Node Accessing the tree with XPath / <document> <chapter title=”Chapter One”> This is chapter one </chapter> </document> (0x01000000): XMLNSC = ( (0x01000000):document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

33. WMBv6.x - Java Compute Node Accessing the tree with XPath /document < document > <chapter title=”Chapter One”> This is chapter one </chapter> </ document > (0x01000000):XMLNSC = ( (0x01000000): document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

34. WMBv6.x - Java Compute Node Accessing the tree with XPath /document/chapter <document> < chapter title=”Chapter One”> This is chapter one </ chapter > </document> (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000): chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

35. WMBv6.x - Java Compute Node Accessing the tree with XPath /document/chapter/@title <document> <chapter title=”Chapter One” > This is chapter one </chapter> </document> (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100): title = 'Chapter One' ) ) )

36. WMBv6.x - Java Compute Node Accessing the tree with XPath /document/chapter[@title=’Chapter One’] <document> < chapter title=”Chapter One”> This is chapter one </ chapter > </document> (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000): chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

37. WMBv6.x - Java Compute Node Accessing the tree with XPath /document/chapter[@title=’Chapter One’]/.. < document > <chapter title=”Chapter One”> This is chapter one </chapter> </ document > (0x01000000):XMLNSC = ( (0x01000000): document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = 'Chapter One' ) ) )

38. WMBv6.x - Java Compute Node Accessing the tree with XPath string(/document/chapter/@title) <document> <chapter title=” Chapter One ”> This is chapter one </chapter> </document> (0x01000000):XMLNSC = ( (0x01000000):document = ( (0x03000000):chapter = 'This is chapter one' ( (0x03000100):title = ' Chapter One ' ) ) )

40. WMBv6.x - Java Compute Node Modifying the tree with XPath Funktioner: set-value() set-local-name() set-namespace-uri()

41. WMBv6.x - Java Compute Node Modifying the tree with XPath Broker specific XPath additions: ?myElement Selects myElement, created if not present ?$myElement Creates myElement as last child and selects it ?^myElement Creates myElement as first child and selects it ?>myElement Creates myElement as next sibling and selects it ?<myElement Creates myElement as previous sibling and selects it @ Used to select attributes, e.g; ?@myAttribute[set-value(’Attribute value’)]

42. WMBv6.x - Java Compute Node Modifying the tree with XPath <document> <chapter title=”Chapter One”> This is chapter one </chapter> </document>

43. WMBv6.x - Java Compute Node Modifying the tree with XPath <document> <chapter title=”Chapter One”> This is chapter one </chapter> </document> /document/?$chapter [set-value('This is chapter two')] [?@title[set-value('Chapter Two')]]

44. WMBv6.x - Java Compute Node Modifying the tree with XPath <document> <chapter title=”Chapter One”> This is chapter one </chapter> </document> /document/?$chapter [set-value('This is chapter two')] [?@title[set-value('Chapter Two')]] <document> <chapter title=”Chapter One”> This is chapter one </chapter> <chapter title=”Chapter Two”> This is chapter two </chapter> </document>