OpenEdge Development: Working with XML - Product ...

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Reading XML Documents with the Simple API for XML (SAX) 3–32 Context management example Here is a fragment that demonstrates the OpenEdge context management system. The fragment retrieves the handle to the context management table, then finds the element added most recently, as shown: PROCEDURE getTopElement : DEFINE OUTPUT PARAMETER cElementname AS CHARACTER NO-UNDO. DEFINE VARIABLE fld AS HANDLE NO-UNDO. DEFINE VARIABLE bh AS HANDLE NO-UNDO. mhStack = DYNAMIC-FUNCTION("getStackHandle"). IF VALID-HANDLE(mhStack) THEN DO: bh = mhStack:DEFAULT-BUFFER-HANDLE. bh:FIND-LAST( ) NO-ERROR. fld = bh:BUFFER-FIELD("cQName") NO-ERROR. cElementname = fld:BUFFER-VALUE NO-ERROR. END. END PROCEDURE.
SAX API reference This reference contains the following sections: • SAX error message reference • SAX callback reference SAX API reference For definitions of the ABL elements related to the SAX-reader and SAX-attributes objects, see OpenEdge Development: ABL Reference. SAX error message reference Table 3–9 explains the error messages that ABL SAX provides. Table 3–9: ABL SAX error messages SAX callback reference This section contains a reference entry for each callback ABL SAX supports. Each entry specifies the signature and defines each parameter. The callbacks, in alphabetical order, are: • Characters • EndDocument • EndElement • EndPrefixMapping • Error • FatalError • IgnorableWhitespace • NotationDecl • ProcessingInstruction • ResolveEntity Error message Explanation Couldn’t initialize proxml (or libproxml) proxml.dll (or libproxml.so) was missing or incomplete, or XML could not be initialized Parser not running for SAX-PARSE-NEXT Could not read the next part of the XML document: the parser is not running Document not found file-name was not found Handler procedure not found Could not process XML document: invalid procedure handle for the handler 3–33
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PROGRESS® PROGRESS® PROGRESS® 10
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Contents Preface . . . . . . . . .
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Contents 5. Reading and Writing XML
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Preface This Preface contains the f
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Using this manual Preface OpenEdge
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| ... Examples of syntax descriptio
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In this example, ASSIGN requires ei
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Third party acknowledgements OpenEd
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Preface OpenEdge includes http pack
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Preface OpenEdge includes Sonic sof
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Developing with XML in OpenEdge 1 T
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About XML The W3C has also defined
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Recommended resources for learning
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ABL support ABL implements DOM with
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Developing XML-enabled ABL applicat
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Use cases Serializing ABL temp-tabl
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Reading and Writing XML with the Do
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DTDs and XML Schema documents XML t
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XML empty elements XML terminology
Page 39 and 40: The ABL DOM interface If you are an
Page 41 and 42: The ABL DOM interface Table 2-1 sho
Page 43 and 44: Setting node attributes and values
Page 45 and 46: Writing an XML file to a MEMPTR, a
Page 47 and 48: Loading an XML file from a MEMPTR R
Page 49 and 50: Reading XML input into ABL i-clone.
Page 51 and 52: Namespaces Namespaces When you have
Page 53 and 54: Internationalization Internationali
Page 55 and 56: Validation Validation You can valid
Page 57 and 58: Method and attribute summary Table
Page 59 and 60: Reading XML Documents with the Simp
Page 61 and 62: SAX-reader object Understanding ABL
Page 63 and 64: Understanding ABL SAX The following
Page 65 and 66: Understanding ABL SAX Table 3-3: SA
Page 67 and 68: Creating a SAX-attributes object Un
Page 69 and 70: Understanding ABL SAX A DTD might b
Page 71 and 72: Table 3-7 describes the effect of n
Page 73 and 74: • A callback raises an error by u
Page 75 and 76: Developing ABL SAX applications Mos
Page 77 and 78: Developing ABL SAX applications i-s
Page 79 and 80: Developing ABL SAX applications Tra
Page 83 and 84: i-sax2.xml Developing ABL SAX appli
Page 87 and 88: ABL SAX and WebSpeed i-saxe3s.p (2
Page 89: ABL SAX and WebSpeed Note: If you m
Page 93 and 94: EndDocument Invoked when the XML pa
Page 95 and 96: SAX API reference If validation is
Page 97 and 98: memPointer SAX API reference Option
Page 99 and 100: UnparsedEntityDecl SAX API referenc
Page 101 and 102: Writing XML Documents with the Simp
Page 103 and 104: SAX-writer overview Table 4-1: SAX-
Page 105 and 106: Configuring a SAX-writer Configurin
Page 107 and 108: Examples This section shows example
Page 109 and 110: Envelope information example Exampl
Page 111 and 112: Concurrently reading and writing XM
Page 113 and 114: Examples sax-readwrite.p (2 of 2) /
Page 115 and 116: Examples sax-readwrite2.p (2 of 2)
Page 117 and 118: START-ELEMENT("name", "namespaceUri
Page 119 and 120: DECLARE-NAMESPACE("namespaceUri", "
Page 121 and 122: Handling errors Handling errors The
Page 123 and 124: Handling errors Table 4-3: Common e
Page 125 and 126: Handling errors Example of changing
Page 127 and 128: Reading and Writing XML Data from T
Page 129 and 130: Use cases Introduction The XML read
Page 131 and 132: SERIALIZE-NAME 3 (Readable and writ
Page 133 and 134: Methods and attributes • If NAMES
Page 135 and 136: Reading XML Schema into a temp-tabl
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Reading XML Schema into a temp-tabl
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Reading XML Schema into a temp-tabl
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ead-mode Reading XML into a temp-ta
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verify-schema-mode Reading XML into
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Reading XML into a temp-table, temp
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Here is a snippet of the XML file:
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The following is the output for thi
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Writing XML Schema from a temp-tabl
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omit-initial-values Writing XML Sch
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longchar Writing XML from a temp-ta
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Writing XML from a temp-table, temp
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Writing XML from a temp-table, temp
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Minimizing XML document size Minimi
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Minimizing XML document size A non-
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Sample ProDataSet to XML round-trip
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Sample ProDataSet to XML round-trip
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Using XML Schema In the following e
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Using XML Schema Using READ-XML( )
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Representing temp-tables in XML Sch
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Representing indexes in XML Schema
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XML Schema and ABL Data Type Mappin
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Default mappings from other XML Sch
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ABL to IANA Code Page Mappings This
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ABL to IANA code page mappings Tabl
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Command and Utility Reference This
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-fieldtypemapping { field-mapping-f
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Index A ABL benefits of XML develop
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NODE-VALUE-TO-LONGCHAR method 2-26
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