CDD Cluster Tab Domain Object Override Settings Reference
Many settings simply override the value of default settings.
See CDD Cluster Tab Domain Object Default Settings for general details about the use of each setting. The table below only provides details that are specific to overrides.
Property | Notes |
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Entity URI | |
Specifies the project path to the entity for which overrides are being set. Defaults to the selected entity’s URI. For example: /Concepts/MyConcept. | |
Mode | |
Overrides the Default level setting for this object type.
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Preload Entities | |
Specifies whether objects of the specified type are loaded into the cache from the backing store on system startup (both normal startup and recovery).
Overrides the Preload Entities setting at the Default level.
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Preload Handles | |
Specifies whether object handles for the specified type are loaded into the cache from the backing store on system startup (both normal startup and recovery).
Overrides the Preload Handles setting at the Default level.
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Preload Fetch Size | |
Overrides the Preload Fetch Size setting in the Default settings. | |
Check for Version | |
Overrides the value of the same-named setting in the Default settings. | |
Constant | |
Overrides the value of the same-named setting in the Default settings. | |
Evict from Cache on Update | |
Overrides the value of the same-named setting in the Default settings. | |
Is Cache Limited | |
Overrides the value of the same-named setting in the Default settings. | |
Concept TTL | |
Overrides the value of the same-named setting in the Default settings. | |
Backing Store Section | |
Has Backing Store | |
Used only if the Backing Store > Enabled checkbox is checked. To exclude an entity from the backing store, uncheck the Has Backing Store checkbox.
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Table Name | |
Specifies a table name to be used in the backing store. Typically used if the entity name is long. See Ontology Identifiers that Exceed the DBMS Maximum Column Length for details. | |
Properties Metadata Section | |
Property | |
Displays the property name. Read-only. | |
Present in Index | |
If checked, sets an unordered index on the property.
Used only if Oracle Coherence is the cache provider. Also used only if the query agent has enabled indexing: see be.agent.query.enable.filter.optimizer in CDD Agent Classes Tab Properties Reference . |
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Encrypted | |
Specifies whether the property should be encrypted. The values are: | |
Max Length | |
Used with backing store to specify the length of string properties that exceed 255 characters (that is the actual contents stored in the column is more than 255 characters). Specifies the expected maximum length for the property. See String Properties that Exceed the DBMS Maximum Column Length for details. | |
Reverse References | |
This setting is for use only with ConceptReference type concept properties.
With a backing store, database updates related to a referring concept in a referenced concept can cause decreased performance. This happens when there are very many reverse references in a shared instance (referenced by many other instances). To address this issue, set the value to false for ConceptReference type properties. If you set the value to false, you must explicitly remove ConceptReference properties for deleted referenced concepts in the referring concept in your code. For example, if employee is a ConceptReference type property in a concept acme, and smith is an instance of a concept type employee, then you would set Reverse References to true for the employee ConceptReference property, and you would add something like this to rules: acme.employee = null; Instance.deleteInstance(smith); Or, for array properties: Instance.PropertyArray.removeConceptReference(acme.employee, smith); Instance.deleteInstance(smith); Default is true. |
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Composite Indexes Section
The table lists the composite indexes for the entity. Composite indexes are based on multiple columns (entity properties). You can add, delete, and edit a composite index from the list. Click the
Add icon ( |
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Index Name | |
Displays the name of the composite index. | |
Properties | |
Displays the properties that are included in the composite index. |