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Jira Ticket:
CPS-37
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Getting issue details...
STATUS
Decisions/Open Issues
| Description | Details | Decisions |
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1 | Assume flat attributes (no complex data types) but data could be stored as json object in SPI impl. for convenience/PoC |
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2 | SPI Implementation NOT using Model (service) current ENM SPI does! |
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3 | Are we going to have XPath/query builder? | - We should decide based on what the users want to use/is easy to use
- We don't want a query builder that eventually mimics XPaths functionality, use what is defined already XPATH sa a based but maybe supplement with a xpath-builder
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4 | When do we get attributes? | How do control how many attributes we get back? | We will have an (optional) output specification with the following options - Default is no attributes
- All Attributes
- Specify attributes - output specification (filter)
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5 | Should we use the name node or fragment? |
| We decided on the name DataNode |
6 | Do we want to split the interface? | Maybe we could just have a 3 Alternatives - all in one interface
- Limited number of interfaces e.g Data Objects/ Data Persistence/Query
- Very fine grained (see below)
| - DataStore SPI - methods to add data.
e.g dataStore.addChild(parentDataObject, childDataObject) - CpsAdmin Interface will handle the dataspaces and anchors
- Module SPI - responsible for handling modules and module sets
The above will be in separate maven modules. Any data object they need will be in the same module. We will not have a querybuilder in SPI but the SPI will have to understand the cpsPath. The java API will use a builder pattern to create a cpsPath |
ENM SPI Study
Details about the ENM SPI can be found here: Spike
Proposed Future Implementation of CPS SPI
DataStore SPI
| Name
| Capabilities |
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1 | DataStoreService | - getDataNode(cpsPath)
- getDataNode(cpsPath,outputSpecification)
- count(CpsPath)
- addDataNode(anchorName,dataNode)
- addChild(cpsPathParent,dataNode)
- addChildren(cpsPathParent,dataNode...)
- updateDataNode(anchorName,dataNode)
- setAttribute(cpsPath,attributeName,value)
- deleteDataNode(cpsPath)
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2 | DataNode Object | - createDataNode()
- getCpsPath()
- getAttributes()
- getAttribute(name)
- getModule()
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CpsAdmin SPI
| Name
| Capabilities |
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1 | DataspacePersistenceService
| - createDataspace
- GetDataspace(dataspaceName)
- GetDataspaces()
- exists
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2 | AnchorPersistenceService | - createAnchor
- getAnchors
- getAnchor
- deleteAnchor
- associateAnchorToModuleSet
- associateDataNodeToAnchor
- associateAnchorToDataspace
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3 | Dataspace Object | - createDataspace()
- getCpsPath()
- getAttributes()
- getAttribute(name)
- getModule()
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4 | Anchor Object | - createAnchor()
- getCpsPath()
- getAttributes()
- getAttribute(name)
- getModule()
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Module SPI
| Name
| Capabilities |
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1 | ModulePersistenceService
| - createModuleSet
- getChild
getChildren - getNamespace
- storeModule
- deleteModule
- getModuleEntity
- getDataspace
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2 | BasicModuleObject | - createModule
- getModule
- getNamespace
- getSchemaNodeIdentifier
- getName
- getVersion
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