Class AppRoot

Namespace

ToSic.Eav.DataSources

Assembly

ToSic.Eav.DataSources.dll

The App Root is the entry point for all data. It takes its data from a hidden AppState Cache. It's implemented as a DataSource so that other DataSources can easily attach to it.
This is also the object returned as the root in any query.

[InternalApi_DoNotUse_MayChangeWithoutNotice("this is just fyi")]
public class AppRoot : DataSourceBase, IAppRoot, IDataSource, IDataSourceLinkable, IAppIdentity, IZoneIdentity, IAppIdentityLight, ICacheKey, ICacheExpiring, ITimestamped, IHasLog

Inheritance

object

ServiceBase

ServiceBase<DataSourceBase.MyServices>

DataSourceBase

AppRoot

Implements

IAppRoot

IDataSource

IDataSourceLinkable

IAppIdentity

IZoneIdentity

IAppIdentityLight

ICacheKey

ICacheExpiring

ITimestamped

IHasLog

Inherited Members

DataSourceBase.Immutable

DataSourceBase.AppId

DataSourceBase.ZoneId

DataSourceBase.Guid

DataSourceBase.Error

DataSourceBase.Configuration

DataSourceBase.In

DataSourceBase.TryGetIn(string)

DataSourceBase.TryGetOut(string)

DataSourceBase.Out

DataSourceBase.this[string]

DataSourceBase.GetStream(string, NoParamOrder, bool, bool)

DataSourceBase.List

DataSourceBase.Attach(IDataSource)

DataSourceBase.Attach(string, IDataSource, string)

DataSourceBase.Attach(string, IDataStream)

DataSourceBase.ProvideOut(Func<IEnumerable<IEntity>>, string)

DataSourceBase.ProvideOut(Func<IImmutableList<IEntity>>, string)

Properties

CacheTimestamp

System time-stamp of when the data in this cached thing was initialized or updated. Depending on the implementation, this may go up-stream and return an up-stream value.

public override long CacheTimestamp { get; }

Property Value

long

A timestamp as a long number

Link

A link - or possibly many. In most cases, this references the parent object which provides this/these links.

public override IDataSourceLink Link { get; }

Property Value

IDataSourceLink

Methods

CacheChanged(long)

Detect if the cache has newer data. It's called using the TimeStamp of the dependent object which may still have old data.

public override bool CacheChanged(long dependentTimeStamp)

Parameters

dependentTimeStamp long

New time stamp of a dependent object, which could have an older timestamp.

Returns

bool

True if the timestamps differ, false if it's the same

Remarks

This is implemented in each object, because sometimes it compares its own timestamp, sometimes that of another underlying object.