Data source
The source of data for a Query, e.g. a Lucene based Index, a SQL Statistics Data source, etc.
There are three types of Data source:
- Lucene based search index data sources.
- Stroom’s SQL Statistics data sources.
- Searchable data sources for searching the internals of Stroom.
A data source will have a
Doc Ref
Doc Ref
A Doc Ref (or Document Reference) is an identifier used to identify most documents/entities in Stroom, e.g. an XSLT will have a Doc Ref.Click to see more details... to identify it and will define the set of
Fields
Field
A named data Field within some form of record or entity, and where each Field can have an associated value. In Stroom, Fields can be the Fields in an Index (or other queryable Data Source or the fields of Metadata associated with a Stream, e.g. Stream ID, Feed, creation time, etc.Click to see more details... that it presents.
Each Field will have:
- A name
- A set of
Conditions
Condition
A Condition in an query expression term, e.g.Click to see more details... that it supports. E.g. a
=,>,in, etc.Feedfield would likely supportisbut not>. - A flag to indicate if it is queryable or not.
I.e. a queryable field could be referenced in the query expression tree and in a
Dashboard
Dashboard
A Dashboard is a configurable entity for querying one or more Data Sources and displaying the results as a table, a visualisation or some other form.Click to see more details... table, but a non-queryable field could only be referenced in the Dashboard table.
See Also
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Query
Query
The search Query in a Dashboard that selects the data to display. The Query is constructed using an Expression Tree of terms.Click to see more details…
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Dashboard
Dashboard
A Dashboard is a configurable entity for querying one or more Data Sources and displaying the results as a table, a visualisation or some other form.Click to see more details…
-
Field
Field
A named data Field within some form of record or entity, and where each Field can have an associated value. In Stroom, Fields can be the Fields in an Index (or other queryable Data Source or the fields of Metadata associated with a Stream, e.g. Stream ID, Feed, creation time, etc.Click to see more details…
Last modified October 20, 2026: Merge pull request #144 from gchq/add-7.14-rel-notes (2c6fb22)