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Testbed-12 Web Feature Service Synchronization
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| Definitionskos:definition | This engineering report describes a protocol for synchronizing data between two enterprise servers. While the protocol itself is generic, this engineering report describes its application to web feature servers. In the simplest terms, the protocol involves each synchronization peer accessing the other’s Sync resource to get the set of changed objects since the last time the Sync resource was accessed. In the case of web feature servers, the objects are features. The requesting peer then compare that list of changed features with the identically identified features in its data store and performs any necessary changes so that the feature states match. Continuing the work done in Testbed-11, this engineering report describes the implementation of a Sync operation in a WFS server that: Enhances the Sync operation from Testbed-11 to include an abstract query element where each service type can then substitute their specific query syntax for identifying the specific sub-set of changed features to be synchronized. In the case of the WFS, several query syntaxes may be used including the wfs:Query element and a REST based feature type URI with query parameters. Extends the definition of the Sync operation with the addition of a resultType parameter to allow a client to obtain a hit count of the number of features that a Sync operation shall return. Shall investigate the proper procedure for handling resource references. Implementing the resolvePath parameter alone is not sufficient to ensure complete data set synchronization. Shall investigate concurrency and consistency issues. |
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| Broaderbroader | Public Engineering Report |
| http://purl.org/dc/terms/createdcreated | 2017-03-09 |
| Creatorcreator | Panagiotis (Peter) A. Vretanos |
| hasProfilehasProfile | http://www.opengis.net/def/docs/16-044?_profile=conceptscheme |
| seeAlsoseeAlso | http://www.opengis.net/def/docs/16-044?_profile=alt |
| https://docs.ogc.org/per/16-044.html | |
| Status of item in register or collectionstatus | valid |
| Notationnotation | 16-044 |
| Alternative LabelaltLabel | Testbed-12 Web Feature Service Synchronization |
| 16-044 | |
| OGC document typedoctype | Public Engineering Report |