Items managed by Metadata Agent
Metadata Agent allows to gather raw metadata from the data sources for three managed objects categories:
- Managed data source - corresponds to the TDV data source defined in the private part or to the folder containing TDV published view.
- Managed assets - children resources of the data source for which metadata can be retrieved.
- Managed links - relations between resources, such as foreign keys for relational databases.
You can access a list of the objects managed by Metadata Agents in the ‘Administration’ perspective.
Managed data sources
In the ‘Administration’ perspective select ‘Datasources’ menu action to access the list of the data sources managed by subscribed Metadata Agents.
Following information is available for each managed data source:
| Field | Description |
|---|---|
| Agent identifier | The identifier of Metadata Agent that is connected to this data source. |
| Datasource Identifier in TDV | Resource path of this data source in TDV instance. |
| Instance Identifier in TIBCO Cloud™ Metadata | If the managed data source is already connected to an instance in Metadata the corresponding identifier will appear in this field. |
| Status | Data source status: |
| Created at | Creation date for this record. |
| Last updated | Last update date for this record. |
| Is disabled? | A data source is disabled if the corresponding agent is disabled. |
| Datasource Type | Technical data source type in TDV. Please, see [Agent administration](./agent_administration.html) for the full list of the supported data source types. |
Clean deleted data sources
To delete all data sources with status ‘DELETED’ from the system, click on the ‘Clean deleted’ button above the table:
This will permanently delete these data sources from this table. Related links and assets will also be deleted.
Managed assets
In the ‘Administration’ perspective select ‘Assets’ menu action to access the list of the assets managed by subscribed Metadata Agents.
Following information is available for each managed data source:
| Field | Description |
|---|---|
| Datasource | The data source to which the asset belongs. |
| Agent identifier | The identifier of Metadata Agent that is connected to this asset. |
| Resource ID in TDV | Resource path of this asset in TDV instance. |
| Asset ID in TIBCO Cloud™ Metadata | If the managed asset is already connected to an asset in Metadata the corresponding identifier will appear in this field. |
| Status | Asset status: |
| Created at | Creation date for this record. |
| Last updated | Last update date for this record. |
| Is disabled? | An asset is disabled if the corresponding agent is disabled. |
| TDV Parent asset Id | Technical path to the parent element in TDV. |
Clean deleted assets
To delete all assets with status ‘DELETED’ from the system, click on the ‘Clean deleted’ button above the table:
This will permanently delete these assets from this table. Related links will also be deleted.
Managed links
In the ‘Administration’ perspective select ‘Links’ menu action to access the list of the links managed by subscribed Metadata Agents.
Following information is available for each managed data source:
| Field | Description |
|---|---|
| Agent identifier | The identifier of Metadata Agent that is connected to this link. |
| ID in TDV | Name of the foreign key. |
| PK Asset | A managed asset that represents a primary key in this link relation. |
| FK Asset | A managed asset that represents a foreign key in this link relation. |
| Link ID in TIBCO Cloud™ Metadata | If this managed link is already stored in Metadata as link the corresponding identifier will appear in this field. |
| Status | Link status: |
| Is disabled? | A link is disabled if the corresponding agent is disabled. |
| TDV Parent Id | Identifier of the parent link object. |
Clean deleted links
To delete all links with status ‘DELETED’ from the system, click on the ‘Clean deleted’ button above the table:
This will permanently delete these links from this table.
Relation of the managed items with Metadata objects
Each stored managed item bears relation with an item in the main Metadata data model.
| Managed item | Metadata object |
|---|---|
| Managed Datasource | Instance |
| Managed Asset | Asset |
| Managed Link | Link |
The link is created during harvesting of the metadata through ‘Harvest metadata’ service or ‘Create instance from datasource’ service.
Once the metadata is stored, the status of the managed item becomes ‘STORED’ and the identifier of the corresponding Metadata object is attached to it.
If a Metadata object linked to a managed item is deleted from Metadata, the link is broken and managed item’s status becomes again ‘NEW’.
If a physical data source or resource is deleted in TDV, during the next harvesting executed for the corresponding object in Metadata the managed item will receive ‘DELETED’ status and linked Metadata object will be marked as ‘disabled’.
For the instances and assets that have a linked managed item, attribute ‘name’ is read-only as it is used for technical exchanges between Metadata and TDV through Metadata Agent.