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Class UmbracoExamineIndex

An abstract provider containing the basic functionality to be able to query against Umbraco data.

Inheritance
object
BaseIndexProvider
LuceneIndex
Namespace: Umbraco.Cms.Infrastructure.Examine
Assembly: Umbraco.Examine.Lucene.dll
Syntax
public abstract class UmbracoExamineIndex : LuceneIndex, IUmbracoIndex, IIndexDiagnostics

Constructors

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UmbracoExamineIndex(ILoggerFactory, string, IOptionsMonitor<LuceneDirectoryIndexOptions>, IHostingEnvironment, IRuntimeState)

Declaration
protected UmbracoExamineIndex(ILoggerFactory loggerFactory, string name, IOptionsMonitor<LuceneDirectoryIndexOptions> indexOptions, IHostingEnvironment hostingEnvironment, IRuntimeState runtimeState)
Parameters
Type Name Description
ILoggerFactory loggerFactory
string name
IOptionsMonitor<LuceneDirectoryIndexOptions> indexOptions
IHostingEnvironment hostingEnvironment
IRuntimeState runtimeState

Properties

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ApplySpecialValueTransformations

Performs special __Path and __Icon value transformations to all deriving indexes when set to true.

Declaration
protected virtual bool ApplySpecialValueTransformations { get; }
Property Value
Type Description
bool
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EnableDefaultEventHandler

When set to true Umbraco will keep the index in sync with Umbraco data automatically

Declaration
public bool EnableDefaultEventHandler { get; set; }
Property Value
Type Description
bool
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Metadata

A key/value collection of diagnostic properties for the index

Declaration
public virtual IReadOnlyDictionary<string, object?> Metadata { get; }
Property Value
Type Description
IReadOnlyDictionary<string, object>
Remarks

Used to display in the UI

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PublishedValuesOnly

When set to true the index will only retain published values

Declaration
public bool PublishedValuesOnly { get; protected set; }
Property Value
Type Description
bool
Remarks

Any non-published values will not be put or kept in the index:

  • Deleted, Trashed, non-published Content items
  • non-published Variants
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SupportProtectedContent

Whether the index can contain protected content

Declaration
public bool SupportProtectedContent { get; protected set; }
Property Value
Type Description
bool
Remarks

To retain backwards compatability, the default value is true

Methods

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CanInitialize()

Returns true if the Umbraco application is in a state that we can initialize the examine indexes

Declaration
protected bool CanInitialize()
Returns
Type Description
bool
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IsHealthy()

If the index can be open/read

Declaration
public Attempt<string?> IsHealthy()
Returns
Type Description
Attempt<string>

A successful attempt if it is healthy, else a failed attempt with a message if unhealthy
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OnDocumentWriting(DocumentWritingEventArgs)

This ensures that the special _Raw fields are indexed correctly

Declaration
protected override void OnDocumentWriting(DocumentWritingEventArgs docArgs)
Parameters
Type Name Description
DocumentWritingEventArgs docArgs
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OnTransformingIndexValues(IndexingItemEventArgs)

Declaration
protected override void OnTransformingIndexValues(IndexingItemEventArgs e)
Parameters
Type Name Description
IndexingItemEventArgs e
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PerformDeleteFromIndex(IEnumerable<string>, Action<IndexOperationEventArgs>?)

override to check if we can actually initialize.

Declaration
protected override void PerformDeleteFromIndex(IEnumerable<string> itemIds, Action<IndexOperationEventArgs>? onComplete)
Parameters
Type Name Description
IEnumerable<string> itemIds
Action<IndexOperationEventArgs> onComplete
Remarks

This check is required since the base examine lib will try to rebuild on startup

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PerformIndexItems(IEnumerable<ValueSet>, Action<IndexOperationEventArgs>)

Declaration
protected override void PerformIndexItems(IEnumerable<ValueSet> values, Action<IndexOperationEventArgs> onComplete)
Parameters
Type Name Description
IEnumerable<ValueSet> values
Action<IndexOperationEventArgs> onComplete