Oracle Integration Cloud: Building Integrations That Survive Production · Module 5 · Mappings and transformations
Namespaces, and the errors they cause
Lesson 55 of 175 · 2 min
Why a payload that looks IDENTICAL is rejected, and how to read a message that names an element you can see plainly in the file. A namespace qualifies an element name. Two elements can be spelled the same and belong to different namespaces, in which case they are different elements — and the target will tell you it did not find the one it wanted while you are looking at something that reads exactly like it. THAT IS THE ENTIRE CONFUSION: the file is right to the eye and wrong to the parser, because the eye reads names and the parser reads name-plus-namespace. WHERE IT BITES IN PRACTICE. A structure generated from one sample and used against a service that qualifies differently. A hand-edited payload where the prefix declaration was lost. A SOAP service whose WSDL changed its target namespace at an upgrade — which is Module 3's stale-WSDL failure…
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In this module: Module 5 · Mappings and transformations
- 1What a mapping really isFree preview
- 2The mapper, practically
- 3Required, optional and the empty element
- 4Repeating elements and loops
- 5Conditional mapping
- 6Functions: strings, numbers and dates
- 7Dates and time zones, carefully
- 8Numbers, precision and currency
- 9Lookups inside a mapping
- 10Testing a mapping with real data
- 11Namespaces, and the errors they cause
- 12Keeping a mapping maintainable
- 13What breaks: five mapping failures
- 14Lab briefing · Map two schemas that disagree