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Mobile Apps with ColdFusion
This document discusses building ColdFusion powered mobile applications using Adobe AIR. It reviews using ColdFusion components (CFCs) with remote functions to provide data via web services to Flex mobile apps. It then demonstrates three approaches to mobile data: network only, read-only cache, and sync-able cache. The sync-able cache approach uses ColdFusion's AIR synchronization to allow offline data access and synchronization. Tips are provided like casting, avoiding circular references, preparing databases, and asynchronous database calls to build responsive mobile apps.
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Mobile Apps with ColdFusion
- 1. Terry Ryan |EvangelistBuilding ColdFusion Powered Mobile ApplicationsDeveloper Week June 20 – June 24, 2011
- 2. AssumptionsYou know alittle ColdFusionYou know a little FlexYou know what AIR isYou’ve heard about AIR on Mobile Devices2
- 3. What is thisabout?“Building ColdFusion Powered Mobile Applications”More specificallyColdFusion support for data in mobile apps.3
- 4.
- 5. ColdFusion - Doyou know what a CFC is?ColdFusion ComponentCollection of FunctionsFunctionsHave “Scope” remote, public, package, and privateRemote means accessible to the world remotely through a webserviceRemote AccessPlain TextWDDXJSONAMF or Flash Remoting5
- 6. Flex – Doyou know what a remote object is?RemoteObjectRemote Server callUses AMFAMFClient requests dataServer converts from server objects to ActionScript objects Server transmits binary objects to requesting client 6
- 7. Mobile Apps =AIR7
- 8.
- 9. AIR and SQLiteAIRuses SQLite for offline data accessSQLite is tiny footprint databaseUsed in Native IOSNative Android9
- 10. Application We arebuildingStaff information for my immediate team1 tablePerson information10
- 11. Demo – BackendCode11
- 12. Approaches to MobileDataMobile only (Not Covered)Network OnlyRead only cacheSync-able cache12
- 13. Network OnlyBackend Serverhas databaseUser requests dataMobile App requests dataMobile App presents it directly to user13
- 14.
- 15. Demo – NetworkOnly15
- 16. Network OnlyProsEasy towriteSimple AppsConsGood ForDemo appsProof of Concepts Stale data worse then no data Have to be connected to networkNo interactivityTake awayYou just turned your app in to a dumbed down browser
- 17. Read Only CacheBackendServer has databaseMobile App has databaseUser requests dataMobile app presents data from its databaseMobile App requests dataMobile App overwrites all its data. 17
- 18.
- 19. Demo – ReadOnly Cache19
- 20. Read only CacheProsModeratelyeasy to writeAllows offline accessConsGood ForConsumption appsStop gap appNo interactivity Take awaysBetter then network onlyStill limitedMight be right for your users
- 21. Synch-able CacheBackend Serverhas databaseMobile App has databaseUser requests/alters dataMobile app presents/alters data from/for its databaseMobile App synchs all its data. Mobile app and server manage conflicts21
- 22. CF AIR SynchColdFusion 9 Introduced AIR Offline supportYou write a sychmanager that matched ISynchmanager interfaceYou include cfair.swc in your Flex22
- 23.
- 24. Demo – Synch-ableCache24
- 25. Synch-able CacheProsThis isa real appMuch easier then writing all of that codeConsGood ForReal apps So complex to write, simplified version is still complexCode is obscured Take awaysMight work for youStill might have to roll your own
- 26.
- 27. Sometimes you haveto manually castDAOCFAIR Synch27
- 28. Watch out forcircular referencesORM with relationshipsCopy ColdFusion ORM and remove relationships28
- 29. App should onlypresent localAll app data should be displayed from localApp should only synch to server29
- 30. Prepare databasesShip appswith prepopulated databases30
- 31. Use Asynchronous DatabasecallsLittle harder then you are used toBut allows for responsive apps.31
- 32.
- 33.
Editor's Notes
- #9Â You develop with AIR but it creates an apk file that is distributable on any market. It requires the AIR runtime, but makes it easy for someone to get if they need it.