Unchanged Property Filter

The Unchanged Property Filter provides a way to discard individual datum properties that have not changed within a datum stream.

This filter is provided by the Standard Datum Filters plugin.

Tip

See the Unchanged Datum Filter for a filter that can discard entire unchanging datum (at the source ID level).

Settings

In addition to the Common Settings, the following general settings are available:

Setting	Description
Default Unchanged Max Seconds	When greater than 0 then the maximum number of seconds to discard unchanged properties within a single datum stream (source ID). Use this setting to ensure a property is included occasionally, even if the property value has not changed. Having at least one value per hour in a datum stream is recommended. This time period is always relative to the last unfiltered property within a given datum stream seen by the filter.
Property Configurations	A list of property settings.

Property Settings

Use the + and - buttons to add/remove Property configurations.

Each property source mapping configuration contains the following settings:

Setting	Description
Property	A regular expression pattern to match against datum property names. All matching properties will be filtered.
Unchanged Max Seconds	When greater than 0 then the maximum number of seconds to discard unchanged properties within a single datum stream (source ID). This can be used to override the filter-wide Default Unchanged Max Seconds setting, or left blank to use the default value.