Class StreamMerge

A DataSource that merges all streams on the In into one Out stream

The StreamMerge DataSource is part of the Standard EAV Data Sources. It will create a new stream containing everything which came into this data source.

How to use with the VisualQuery

When using the VisualQuery you can just drag it into your query. This is what it usually looks like:

The above example shows two filters finding items and delivering them on the same stream.

Example Using ItemFilterDuplicates

A common scenario will also combine this using the ItemFilterDuplicates, in case various in-streams deliver the same item:

No Settings

The StreamMerge DataSource has no settings to configure.

Note that it will automatically merge the streams in A-Z order of the In-Stream names.

Programming With The StreamMerge DataSource

We recommend to use the VisualQuery where possible, as it's easier to understand and is identical for C# and JavaScript. It's also better because it separates data-retrieval from visualization.

Read also

You should find some examples in this demo App

History

  1. Introduced in EAV 4.x, 2sxc 9.10

API Documentation

Inheritance
System.Object
HasLog
DataSourceBase
StreamMerge
Inherited Members
Namespace: ToSic.Eav.DataSources
Assembly: ToSic.Eav.DataSources.dll
Syntax
[PublicApi_Stable_ForUseInYourCode]
[VisualQuery(NiceName = "Merge Stream", UiHint = "Combine multiple streams into one", Icon = "merge_type", Type = DataSourceType.Logic, GlobalName = "ToSic.Eav.DataSources.StreamMerge, ToSic.Eav.DataSources", DynamicOut = false, DynamicIn = true, HelpLink = "https://r.2sxc.org/DsStreamMerge")]
public sealed class StreamMerge : DataSourceBase, IDataSource, IAppIdentity, IZoneIdentity, IAppIdentityLight, ICacheInfo, ICacheKey, ICacheExpiring, ITimestamped, ICanPurgeListCache, IHasLog, IDataTarget, IDataPartShared
Remarks

Technically many things could just identify the app they belong to, and let the system look up the zone. But this would be inefficient, so for optimization, many items identify themselves with both the app and zone Ids

Implements