Metadata and Taxonomy Programming Model in SharePoint Server 2010 (ECM)

Article
07/24/2014

Applies to: SharePoint Server 2010

This topic introduces the managed metadata programming model. For a complete list of the types available in each namespace, click the link to that namespace.

Namespaces

This section introduces the namespaces in the enterprise metadata management API.

Table 1. Namespaces

Namespace	Description
Microsoft.SharePoint.Taxonomy	Includes classes that provide the basic functionality provided by enterprise metadata management. Examples include types for managing terms, term sets, groups, and keywords.
Microsoft.SharePoint.Taxonomy.ContentTypeSync	Includes classes that manage the synchronization of content types between site collections.
Microsoft.SharePoint.Taxonomy.Generic	Includes classes for collections of generic metadata items.
Microsoft.SharePoint.Taxonomy.WebServices	Includes classes for the Web services used to manage taxonomies in rich-client applications and Web-client applications.

Types

This section introduces the most notable types in the enterprise metadata management API.

Table 2. Notable Microsoft.SharePoint.Taxonomy types

Type	Description
ChangedGroup	Represents a change that happened to a Group object.
ChangedItem	Represents one change to the TermStore object.
ChangedItemCollection	Represents a collection of ChangedItem objects.
ChangedItemType	Represents the type of changed object.
ChangedOperationType	Indicates the type of operation that caused a change.
ChangedTerm	Indicates a change that happened to a Term object.
ChangedTermSet	Indicates a change that happened to a TermSet object.
ChangedTermStore	Represents the changed version of a TermStore object.
Group	Represents the top-level container in a TermStore object.
GroupCollection	A collection of Group objects.
HiddenListFullSyncJobDefinition	Defines the timer job responsible for keeping the list that TaxonomyField objects use for lookup current.
ImportManager	Used to import individual TermSet instances into a Group. Note The data for the import is specified in a *.csv that must follow a well known format.This class can be retrieved from the method GetImportManager().This is a useful class for bootstrapping a TermStore with individual term sets, but for more complex data it is recommended that the writable APIs for Group, TermSet and Term be used to import data.
Label	Represents the name of a Term object in a specific language. Aterm can have one or more labels in the default language, and zero or more labels in the non-default language. If the term has labels in a language, one of the labels must be the default label.
LabelCollection	Represents a collection of Label objects.
StringMatchOption	Indicates what type of string matching should be performed when comparing strings.
TaxonomyField	Represents a taxonomy field. The TaxonomyField class is a custom field class that inherits from the SPFieldLookup class. If you set the properties of the TaxonomyField class, call the Update() method for changes to take effect in the database. The TaxonomyFieldValue class contains the field value for the TaxonomyField class.Either the TaxonomyFieldControl object or the TaxonomyWebTaggingControl object server controls can render a TaxonomyField object.
TaxonomyFieldControl	Provides the edit experience for a TaxonomyField object.
TaxonomyFieldEditor	Represents the CodeBehind for the create new column editing page when a managed metadata column is created.
TaxonomyFieldValue	Represents a single value held in a TaxonomyField object.
TaxonomyFieldValueCollection	Represents the multi-value object for the taxonomy column.
TaxonomyItem	The TaxonomyItem class is a base class that represents an item in the term store.
TaxonomyRights	Represents a bitmask identifying the taxonomy permissions.
TaxonomySession	Wraps up all of the associated TermStore objects for a SPSite object.
TaxonomyWebTaggingControl	Represents a generic Web control for picking managed metadata terms.
Term	Represents a Term or a Keyword in a managed metadata hierarchy.
TermCollection	Represents collection of Term objects.
TermSet	Represents a hierarchical or flat set of Term objects known as a "TermSet".
TermSetCollection	Represents a collection of TermSet objects.
TermSetItem	Provides an abstraction of the TaxonomyItem object that is a parent of Term objects.
TermStore	Represents a store that contains metadata within child Group objects, TermSet objects, and Term objects.
TermStoreCollection	Represents a collection of TermStore objects.
TreeControl	Constructs a JSON representation of the data source and initializes an instance of the client tree control.

Table 3. Notable Microsoft.SharePoint.Taxonomy.ContentTypeSync types

Type	Description
ContentTypePublisher	Publishes or unpublishes a content type on the hub site. After a managed metadata service application and its proxy are provisioned and a site has been designated as the hub on the service application, use this class to publish or unpublish the content types on the hub site.
ContentTypeSyndicationException	Represents an exception that happens during content type syndication.
SyndicationStatus	Indicates the current stage of the content type syndication process.

Table 4. Notable Microsoft.SharePoint.Taxonomy.Generic types

Type	Description
GenericCollection<T>	The GenericCollection class for all public generic collections.
IndexedCollection<T>	Represents a generic abstract base class collection with support for containing items which require integer, string and GUID indexers.
PropertyCollection<T>	A generic abstract base class collection with support for containing items that are complex property types such as Label.
ReadOnlyDictionary<TKey, TValue>	Represents a read-only collection of keys and values.
TaxonomyItemCollection<T>	Represents a generic abstract base class collection with support for containing taxonomy items such as the Group object and the Term object.

Table 5. Notable Microsoft.SharePoint.Taxonomy.WebServices types

Type	Description
TaxonomyClientService	Provides the Web service methods needed for a client application to host a managed metadata control. This Web service enables a client to interact with the managed metadata TermStore object and get the data through label matching, per T:Microsoft.SharePoint.Taxonomy.TermSet, or by GUID. Updates to the TermStore can also be made by adding a new Term object.

TaxonomyClientService

Provides the Web service methods needed for a client application to host a managed metadata control.

This Web service enables a client to interact with the managed metadata TermStore object and get the data through label matching, per T:Microsoft.SharePoint.Taxonomy.TermSet, or by GUID. Updates to the TermStore can also be made by adding a new Term object.

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Metadata and Taxonomy Programming Model in SharePoint Server 2010 (ECM)

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