ContentList Object

  • [アーティクル]

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Use this object to access a particular collection of content items. The ContentList object provides aggregated access to the private data that it stores and to the shared data stored in the ContentListFactory object that created it. This object also flows through the Content Selection Framework (CSF) pipeline for the purpose of scoring content items.

ProgID:

Dependent (See Remarks for more information)

COM Class Name:

ContentList

Type Library Name:

Microsoft Commerce Server Cache Manager Type Library

DLL Name:

mscscache.dll

Threading Model:

Both

[C++]

COM Interface Name:

IContentList

Interface ID Constant:

IID_IContentList

Header File:

cacheint.h

In C++, use the IContentList and IDataContainer interfaces to access the methods and properties of a ContentList object.

Methods

Method

Description

AdjustScore

Adjusts the score associated with an item in the ContentList object by applying a multiplier.

BuildIndex

Builds an index on the specified column.

Filter

Filters items in a ContentList object based on the specified criteria.

GetData

Gets data from a specified row and column in a ContentList object in a high-performance, non-scriptable manner.

GetScore

Gets the score of an item in a ContentList object.

Search

Returns a RowCollection object containing the collection of content items that match the search criteria.

SetData

Sets data at a specified row and column in a ContentList object in a high-performance, non-scriptable manner.

SetScore

Sets the score of an item in a ContentList object.

Properties

Property

Description

ActiveRows

The collection of rows that meet the current Threshold and RowLimit properties and that have not been filtered out of the ContentList object.

This property is read-only.

AllRows

Contains a RowCollection object containing all rows in this ContentList object.

This property is read-only.

Count

Contains the number of rows in this ContentList object.

This property is read/write.

Factory

Contains the ContentListFactory object that created this ContentList object.

This property is read-only.

Fields

Contains the Fields collection for this ContentList object.

This property is read-only.

RowLimit

Contains the maximum number of active rows.

This property is read/write.

Sorted

Stores a flag that controls whether the rows in the ActiveRows collection property are returned sorted by score.

This property is read/write.

Threshold

Contains the Threshold score required for active rows.

This property is read/write.

TraceMessages

Stores the list of TraceMessage strings accumulated for a particular row in the ContentList object.

This property is read-only.

TraceMode

Stores the TraceMode value. A value of True enables score tracing, a value of False disables it.

This property is read/write.

Remarks

Both the ContentList object and the ContentListFactory object implement a common interface, IDataContainer. Therefore, they share the following methods and properties, which are functionally identical on both objects:

Properties:

  • AllRows

  • Count

  • Fields

Methods:

  • BuildIndex

  • GetData

  • Search

  • SetData

The function of a ContentList object is:

  • To aggregate private data in the ContentList object with shared data in the ContentListFactory object.

  • To provide functionality for scoring, searching, and filtering the list of content.

The ContentList object is a dependent object. Create a new ContentList object and obtain a pointer to its IContentList interface by calling the method IContentListFactory::CreateNewContentList.

The ContentList object is a dependent object. Create a new ContentList object by calling the method IContentListFactory::CreateNewContentList.

Aa545780.alert_caution(en-US,CS.70).gifImportant Note:

The ContentList and the ContentListFactory objects are designed to be run in-process with their clients. The GetData and SetData methods assume direct memory access for performance reasons.

See Also

Other Resources

Targeting Objects