Hybrid in-memory/pageable spatial column data
US-2024311371-A1 · Sep 19, 2024 · US
US2019266162A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019266162-A1 |
| Application number | US-201716346558-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 16, 2017 |
| Priority date | Dec 27, 2016 |
| Publication date | Aug 29, 2019 |
| Grant date | — |
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Provided are a dataflow control command generation apparatus, a dataflow control command generation method, and a dataflow control command generation program by which open data is distributed as appropriate and open data can be smoothly used by an application. A dataflow control command generation apparatus includes a first data-side metadata acquisition unit configured to acquire first data-side metadata that is information regarding first data, an application-side metadata acquisition unit configured to acquire application-side metadata that is information regarding an application that provides a service using first data, a matching unit configured to extract first data that meets a requirement of an application through matching between the first data-side metadata and the application-side metadata, and a transmission unit configured to transmit, to a user terminal apparatus that executes the application, a dataflow control command including information for acquiring the first data from a database storing the extracted first data.
Opening claim text (preview).
1 . A dataflow control command generation apparatus comprising: a first data-side metadata acquisition unit configured to acquire first data-side metadata that is information regarding first data; an application-side metadata acquisition unit configured to acquire application-side metadata that is information regarding an application that provides a service using the first data; a matching unit configured to extract first data that meets a requirement of the application through matching between the first data-side metadata and the application-side metadata; and a transmission unit configured to transmit, to a user terminal apparatus that executes the application, a dataflow control command including information for acquiring the first data from a database in which the first data extracted by the matching unit is stored. 2 . The dataflow control command generation apparatus according to claim 1 , wherein the transmission unit is configured to transmit the dataflow control command to a first data management apparatus that manages the first data extracted by the matching unit. 3 . The dataflow control command generation apparatus according to claim 1 , further comprising a metadata generation unit configured to generate the first data-side metadata based on the content of the first data. 4 . The dataflow control command generation apparatus according to claim 3 , wherein the metadata generation unit is configured to retrieve the first data based on a vocabulary corresponding to a genre to which the first data belongs, and extract the first data-side metadata from the first data. 5 . The dataflow control command generation apparatus according to claim 1 , wherein the dataflow control command transmitted by the transmission unit includes API data for calling processing in which the first data is acquired by the application from the database in which the first data is stored. 6 . The dataflow control command generation apparatus according to claim 1 , further comprising: a second data-side metadata acquisition unit configured to acquire second data-side metadata that is information regarding second data, wherein the matching unit is configured to extract second data that meets a requirement of the application through matching between the second data-side metadata and the application-side metadata, the transmission unit is configured to transmit, to a second data management apparatus that manages the second data extracted by the matching unit, a dataflow control command in which the second data extracted by the matching unit and the application are specified, and the dataflow control command generation apparatus further comprises a determination unit configured to determine which of the first data-side metadata or the second data-side metadata is to be matched with the application-side metadata by the matching unit. 7 . The dataflow control command generation apparatus according to claim 1 , further comprising: a second data-side metadata acquisition unit configured to acquire second data-side metadata regarding second data, wherein the matching unit is configured to extract second data that meets a requirement of the application through matching between the second data-side metadata and the application-side metadata, the transmission unit is configured to transmit, to a second data management apparatus that manages the second data extracted by the matching unit, a dataflow control command in which the second data extracted by the matching unit and the application are specified, and the matching unit is configured to preferentially match the first data-side metadata with the application-side metadata rather than the second data-side metadata. 8 . The dataflow control command generation apparatus according to claim 6 , wherein the transmission unit is configured to transmit, to the second data management apparatus, a dataflow control command for transmitting push-type second data to the application, if the second data-side metadata is matched with the application-side metadata by the matching unit. 9 . The dataflow control command generation apparatus according to claim 6 , wherein the first data includes data stored in the database, and the second data includes data output from a sensor. 10 . The dataflow control command generation apparatus according to claim 6 , wherein the first data includes data that can be secondarily used for free, and the second data includes data that cannot be secondarily used or data that can be secondarily used with a fee. 11 . A dataflow control command generation method comprising: a first step of acquiring first data-side metadata that is information regarding first data; a second step of acquiring application-side metadata that is information regarding an application that provides a service using the first data; a third step of extracting first data that meets a requirement of the application through matching between the first data-side metadata and the application-side metadata; and a fourth step of transmitting, to a user terminal apparatus that executes the application, a dataflow control command including information for acquiring the first data from a database in which the first data extracted in the third step is stored. 12 . A non-transitory computer-readable medium storing a dataflow control command generation program for causing a computer to function as a first data-side metadata acquisition unit configured to acquire first data-side metadata that is information regarding first data; an application-side metadata acquisition unit configured to acquire application-side metadata that is information regarding an application that provides a service using the first data; a matching unit configured to extract first data that meets a requirement of the application through matching between the first data-side metadata and the application-side metadata; and a transmission unit configured to transmit, to a user terminal apparatus that executes the application, a dataflow control command including information for acquiring the first data from a database in which the first data extracted by the matching unit is stored. 13 . The dataflow control command generation apparatus according to claim 2 , further comprising: a second data-side metadata acquisition unit configured to acquire second data-side metadata that is information regarding second data, wherein the matching unit is configured to extract second data that meets a requirement of the application through matching between the second data-side metadata and the application-side metadata, the transmission unit is configured to transmit, to a second data management apparatus that manages the second data extracted by the matching unit, a dataflow control command in which the second data extracted by the matching unit and the application are specified, and the dataflow control command generation apparatus further comprises a determination unit configured to determine which of the first data-side metadata or the second data-side metadata is to be matched with the application-side metadata by the matching unit. 14 . The dataflow control command generation apparatus according to claim 3 , further comprising: a second data-side metadata acquisition unit configured to acquire second data-side metadata that is information regarding second data, wherein the matching unit is configured to extract second data that meets a requirement of the application through matching between the second data-side metadata and the application-side metadata, the transmission unit is configured to transmit, to a second data man
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