Class ContentSearchHandler

Manages the index of searchable content item information.

Inheritance

System.Object

ContentSearchHandler

Implements

EPiServer.Search.IReIndexable

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: EPiServer.Core

Assembly: EPiServer.dll

Version: 10.10.4

Syntax

public abstract class ContentSearchHandler : IReIndexable

Examples

Example of how you could search for pages.

    public class PageSearchSample : TemplatePage
{
public IEnumerable<PageData> FindPages(string searchQuery, ContentReference searchRoot, string cultureId, int pagingNumber, int pagingSize)
{
    // The group query is needed to combine the different criteria
    GroupQuery groupQuery = new GroupQuery(LuceneOperator.AND);
// The content query makes sure we only get hits that are of the type PageData
groupQuery.QueryExpressions.Add(new ContentQuery&lt;PageData>());

// The field query contains the search phrase
groupQuery.QueryExpressions.Add(new FieldQuery(searchQuery));

// The virtual path query makes sure that we only get hits for children of the specified search root
VirtualPathQuery pathQuery = new VirtualPathQuery();
pathQuery.AddContentNodes(searchRoot);
groupQuery.QueryExpressions.Add(pathQuery);

// The access control list query will remove any pages the user doesn&apos;t have read access to
AccessControlListQuery aclQuery = new AccessControlListQuery();
aclQuery.AddAclForUser(PrincipalInfo.Current, HttpContext.Current);
groupQuery.QueryExpressions.Add(aclQuery);

// Add a specific field query for the Culture field in order to search for a specific culture
groupQuery.QueryExpressions.Add(new FieldQuery(cultureId, Field.Culture));

SearchResults results = Locate.SearchHandler().GetSearchResults(groupQuery, pagingNumber, pagingSize);

ContentSearchHandler contentSearchHandler = Locate.ContentSearchHandler();
foreach (var hit in results.IndexResponseItems)
{
    // Use the content search handler to convert the page hit into a PageData
    yield return contentSearchHandler.GetContent&lt;PageData>(hit);
}

}
}

Constructors

ContentSearchHandler()

Declaration

protected ContentSearchHandler()

Fields

InvariantCultureIndexedName

The identifier used to store invariant culture name.

Declaration

public const string InvariantCultureIndexedName = "iv"

Field Value

Type	Description
System.String

Remarks

System.Globalization.CultureInfo.Name for System.Globalization.CultureInfo.InvariantCulture is String.Empty which is not possible to query for therfore content stored in System.Globalization.CultureInfo.InvariantCulture is indexed with "iv" as culture name.

Properties

NamedIndex

Gets the index of the named.

Declaration

public abstract string NamedIndex { get; }

Property Value

Type	Description
System.String

NamedIndexingService

Gets the named indexing service.

Declaration

public abstract string NamedIndexingService { get; }

Property Value

Type	Description
System.String

ServiceActive

Gets or sets a value indicating whether the search service is active.

Declaration

public abstract bool ServiceActive { get; set; }

Property Value

Type	Description
System.Boolean	`true` if search service is active; otherwise, `false`.

Remarks

This value will be initialized from the configuration settings of EPiServer.Search.

Methods

GetContent<T>(IndexItemBase)

Converts the indexItem to the correct IContent instance.

Declaration

public virtual T GetContent<T>(IndexItemBase indexItem)
    where T : IContent

Parameters

Type	Name	Description
EPiServer.Search.IndexItemBase	indexItem	The index item.

Returns

Type	Description
T	`null` if `indexItem` is not valid; otherwise a PageData instance.

Type Parameters

Name	Description
T

Remarks

The Id of indexItem must start with a guid that matches a page.

It will use the Culture of indexItem to specify of what culture the returned IContent should be.

GetContent<T>(IndexItemBase, Boolean)

Converts the indexItem to the correct IContent instance.

Declaration

public abstract T GetContent<T>(IndexItemBase indexItem, bool filterOnCulture)
    where T : IContent

Parameters

Type	Name	Description
EPiServer.Search.IndexItemBase	indexItem	The index item.
System.Boolean	filterOnCulture	if set to `true` filter on culture.

Returns

Type	Description
T	`null` if `indexItem` is not valid; otherwise a PageData instance.

Type Parameters

Name	Description
T

Remarks

The Id of indexItem must start with a guid that matches a page.

if filterOnCulture is false it will use the Culture of indexItem to specify of what culture the returned IContent should be. If filterOnCulture is false it will only get content in the current culture.

GetCultureIdentifier(CultureInfo)

Gets the culture identifier that is used when indexing a content item.

Declaration

public static string GetCultureIdentifier(CultureInfo culture)

Parameters

Type	Name	Description
System.Globalization.CultureInfo	culture	The culture.

Returns

Type	Description
System.String

Remarks

Normally System.Globalization.CultureInfo.Name is used. However for System.Globalization.CultureInfo.InvariantCulture is InvariantCultureIndexedName used.

GetItemType(Type)

Gets the item type representation for the provided content item type that is used in the search index.

Declaration

public abstract string GetItemType(Type contentType)

Parameters

Type	Name	Description
System.Type	contentType	Type of the content.

Returns

Type	Description
System.String	A string representing the full ItemType.

Remarks

This string will be made up by the base type of the provided type together with a generic name idicating that it is a content item.

GetItemType<T>()

Gets the item type representation for the provided content item type that is used in the search index.

Declaration

public virtual string GetItemType<T>()

Returns

Type	Description
System.String	A string representing the full ItemType.

Type Parameters

Name	Description
T	Type of the content

Remarks

This string will be made up by the base type of the provided type together with a generic name idicating that it is a content item.

GetItemTypeSection(Type)

Gets the section that the provided type appends to the ItemType field of the search index.

Declaration

public static string GetItemTypeSection(Type type)

Parameters

Type	Name	Description
System.Type	type	The type of item in the index.

Returns

Type	Description
System.String	A string that represents the type in the ItemType field.

GetItemTypeSection<T>()

Gets the section that the provided type appends to the ItemType field of the search index.

Declaration

public static string GetItemTypeSection<T>()

Returns

Type	Description
System.String	A string that represents the type in the ItemType field.

Type Parameters

Name	Description
T	The type of item in the index

GetSearchResults<T>(String, ContentReference, Int32, Int32, Boolean)

Gets the search result for the specified query.

Declaration

public abstract SearchResults GetSearchResults<T>(string searchQuery, ContentReference root, int page, int pageSize, bool filterOnAccess)
    where T : IContent

Parameters

Type	Name	Description
System.String	searchQuery	The search query.
ContentReference	root	The root for the search.
System.Int32	page	The page index of the result. Used to handle paging. Most be larger than 0.
System.Int32	pageSize	Number of items per page. Used to handle paging.
System.Boolean	filterOnAccess	if set to `true`, items that the user doesn't have read access to will be removed.

Returns

Type	Description
EPiServer.Search.SearchResults	The search result matching the search query.

Type Parameters

Name	Description
T	The type of content that should be returned.

GetSearchResults<T>(String, Int32, Int32)

Gets the search result for the specified query.

Declaration

public virtual SearchResults GetSearchResults<T>(string searchQuery, int page, int pageSize)
    where T : IContent

Parameters

Type	Name	Description
System.String	searchQuery	The search query.
System.Int32	page	The page index of the result. Used to handle paging. Most be larger than 0.
System.Int32	pageSize	Number of items per page. Used to handle paging.

Returns

Type	Description
EPiServer.Search.SearchResults	The search result matching the search query.

Type Parameters

Name	Description
T	The type of content that should be returned.

GetVirtualPathNodes(ContentReference)

Gets a collection of virtual path nodes for a content item to use in the search index.

Declaration

public abstract ICollection<string> GetVirtualPathNodes(ContentReference contentLink)

Parameters

Type	Name	Description
ContentReference	contentLink	The content link.

Returns

Type	Description
System.Collections.Generic.ICollection<System.String>	A collection of virtual path nodes.

IndexPublishedContent()

Adds all published content to the index by calling this.UpdateIndex for each item under RootPage

Declaration

public abstract void IndexPublishedContent()

MoveItem(ContentReference)

Updates the search index for the provided content item and it's descendants with a new virtual path location.

Declaration

public abstract void MoveItem(ContentReference contentLink)

Parameters

Type	Name	Description
ContentReference	contentLink	The reference to the content item that is the root item that should get a new virtual path in the search index.

Remarks

The content of the provided item will also be included as a part of the update.

ReIndex()

Implementation of EPiServer.Search.IReIndexable, forwards to IndexPublishedContent

Declaration

public void ReIndex()

RemoveItemsByVirtualPath(ICollection<String>)

Removes all content items located at or under the provided virtual node from the search index. This will include all language versions as well.

Declaration

public abstract void RemoveItemsByVirtualPath(ICollection<string> virtualPathNodes)

Parameters

Type	Name	Description
System.Collections.Generic.ICollection<System.String>	virtualPathNodes	The collection of virtual path nodes used to determine what items to remove.

RemoveLanguageBranch(IContent)

Removes a language branch of a content item from the search index.

Declaration

public abstract void RemoveLanguageBranch(IContent contentItem)

Parameters

Type	Name	Description
IContent	contentItem	The content item that should be removed from the search index.

UpdateItem(IContent)

Updates the search index representation of the provided content item.

Declaration

public abstract void UpdateItem(IContent contentItem)

Parameters

Type	Name	Description
IContent	contentItem	The content item that should be re-indexed.

Remarks

Note that only the exact language version that is provided is updated. If you want to update all language versions of a page, use alternative method overload.

Implements

EPiServer.Search.IReIndexable

Extension Methods

IdentityObjectExtensions.GetIdentity(Object)

IdentityObjectExtensions.SetIdentity(Object, Identity)

PropertyBagObjectsExtensions.ToPropertyBag(Object)

PropertyBagObjectsExtensions.ToPropertyBag(Object, IEnumerable<String>)

RuntimeModelExtensions.GetOriginalType(Object)