Claims patternΒΆ
In some cases, such as in time-based masterdata management, we required more information about a property than just the value.
Much like the namespace of a property can tell us some information about where the property comes from we might have a need to know more about each property, e.g.:
Which entity the value comes from
When the value last updated
When was the value created
Which entity was the origin of the entity (was it inserted by Sesam based on an other entity)
In order to include more metadata for a property we can introduce claims.
A claim simply replaces the value of a property with a dictionary of metadata, the original value being one of the metadata included. This restructuring of the <property>: <value> pair is done in the -enrich pipes and is kept in addition to the original raw data from the source system.
Example
"<namespace>:<property>":
{
"<namespace>:value": "<value>",
"<namespace>:$last-modified": "~t1987-09-11:T06:55:07.456827Z"
}
In the example above we have restructured a <property>: <value> pair to become a <property>: claim pair where the claim hold the original value information as well as additional metadata. In this case the additional metadata relates to when the property value was last updated.