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Resources & Remarks Modification History
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Introduction
yuuvis® Momentum offers a property type for the storage of structured data in JSON format. Thus, it is possible to store interleaved data structures in a queryable way without defining each single sub-property in the schema. The structured data properties should NOT be considered to replace the concept of a well-defined schema. They should be used only if the handling of objects' metadata via the conventional property definitions is not reasonable. Especially, if the structure of metadata and/or the availability of properties differs a lot for the individual object instances, the schema might grow up to a really long list of scarcely used properties. This can be avoided by the usage of a property field that can store a JSON structure as value. In this tutorial, the bibliographic information of media in a library is considered an example use case. For this purpose, the set of information for each medium is provided in JSON structure following the concept of BibJSON.
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{
"objects": [
{
"properties": {
"system:objectId": {
"value": "3d4a67be-3341-4317-bb57-c48ea7ab0a1a"
},
"system:baseTypeId": {
"value": "system:document"
},
"system:objectTypeId": {
"value": "appBibjsonsample:medium"
},
"system:createdBy": {
"value": "275c826c-6a61-4e89-9512-8d935a1631e5"
},
"system:creationDate": {
"value": "2021-06-14T13:11:57.770Z"
},
"system:lastModifiedBy": {
"value": "275c826c-6a61-4e89-9512-8d935a1631e5"
},
"system:lastModificationDate": {
"value": "2021-06-14T13:11:57.770Z"
},
"system:versionNumber": {
"value": 1
},
"system:tenant": {
"value": "default"
},
"system:traceId": {
"value": "22839c5775801e9c"
},
"appBibjsonsample:bibjson": {
"value": {
"metadata": {
"collection": "ym_concepts",
"label": "yuuvis(R) Momentum Core Concepts",
"description": "Documentation for yuuvis(R) Momentum Core in a structured, theoretical way, with links to the tutorial section.",
"id": "ID_of_collection",
"owner": "OS",
"created": "2020-06-09T15:04:12.944Z",
"modified": "2021-06-10T11:05:17.166Z",
"source": "https://help.optimal-systems.com/yuuvis_develop/display/YMY/x/-4BkAg",
"records": 2
},
"records": [
{
"collection": "ym_concepts",
"type": "article",
"title": "Schema - Defining Object Types",
"id": "ID_of_schema_article",
"link": "https://help.optimal-systems.com/yuuvis_develop/display/YMY/x/AYFkAg",
"author": [
{
"name": "Heinrich Schuetzel"
},
{
"name": "George Trader"
},
{
"name": "Johann Fluss"
}
],
"created": "2020-06-09T15:04:12.944Z",
"modified": "2021-06-10T08:53:23.532Z"
},
{
"collection": "ym_concepts",
"type": "article",
"title": "Search Query Language",
"id": "ID_of_query_article",
"link": "https://help.optimal-systems.com/yuuvis_develop/display/YMY/x/gIFkAg",
"author": [
{
"name": "Andrea Schumann"
},
{
"name": "Franz Lissner"
},
{
"name": "Hans Kammer"
},
{
"name": "Johann Fluss"
}
],
"created": "2020-06-16T14:03:01.833Z",
"modified": "2021-06-02T09:54:12.643Z"
}
]
}
}
}
}
]
} |
Search Queries
The individual sub-values within the JSON value for the property appBibjsonsample:bibjson are queryable.
>> Queries on Structured Data
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