133 lines
2.1 KiB
Text
133 lines
2.1 KiB
Text
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# Items database object and table schema
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The base schema of the item objects are data and link object, which have both a
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type. This way you could model the description "Chassis contains Mainboard" or
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"Service runs on Server".
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.Object schema concept
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[plantuml, format=svg]
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----
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@startuml
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left to right direction
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scale 200 width
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header Concept
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title General object and link
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object data1
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object data2
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object link1
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data1 : id: "uuid"
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data1 : type: "data type"
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data1 : data: "json"
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data2 : id: "uuid"
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data2 : type: "data type"
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data2 : data: "json"
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link1 : id: "uuid"
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link1 : type: "link type"
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link1 : from: "data.id"
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link1 : to: "data.id"
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data1::id <- link1::from
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link1::to -> data2::id
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@enduml
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----
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.Object schema example
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[plantuml, format=svg]
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----
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@startuml
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left to right direction
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scale 400 width
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header Example
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title Chassis contains Mainboard
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object data3
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object data4
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object link2
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data3 : id: "afd61751-dbee-4010-91dc-1263155d6a56"
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data3 : type: "Chassis"
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data3 : data: "{\n"serial": "12345678"\n}"
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data4 : id: "96dcf778-0875-437f-adc0-03545f9f06be"
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data4 : type: "Mainboard"
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data4 : data: "{\n "serial": "ABCDEFGHI"\n}"
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link2 : id: "f4402dbb-05db-4903-a378-5bff14cf91ca"
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link2 : type: "contains"
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link2 : from: "afd61751-dbee-4010-91dc-1263155d6a56"
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link2 : to: "96dcf778-0875-437f-adc0-03545f9f06be"
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data3::id <- link2::from
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link2::to -> data4::id
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@enduml
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----
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.Table schema
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[plantuml, format=svg]
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----
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@startuml
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left to right direction
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' scale 350 width
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' skinparam linetype ortho
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entity link_schema #eee8d5 {
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* id: "uuid"
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--
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* type: "a|b|c"
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}
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entity link #fdf6e3 {
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* id: "uuid"
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--
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* type: "schema_link"
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* from: "data.id uuid"
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* to: "data.id uuid"
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}
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note right of link_schema #add1b2
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link_schema has only an 'object_type'
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end note
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entity data_schema #eee8d5 {
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* id: "uuid"
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--
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* type: "x|y|z"
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* schema: "json"
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}
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entity data #fdf6e3 {
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* id: "uuid"
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--
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* type: "data_schema"
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* data: "data_schema.schema json"
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}
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link::from -> data::id #A9DCDF
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link::to -> data::id #A9DCDF
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link_schema::type -> link::type
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data_schema::type -> data::type
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data_schema::schema -> data::data
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@enduml
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----
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