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FilterDescriptor Element in FilterDescriptors (BDCMetadata Schema)

Last modified: July 20, 2011

Applies to: SharePoint Foundation 2013 | SharePoint Server 2013

Specifies a filter descriptor of a method.

Namespace: http://schemas.microsoft.com/windows/2007/BusinessDataCatalog

Schema: BDCMetadata

<FilterDescriptor Type = "String" FilterField = "String" Name = "String" DefaultDisplayName = "String" IsCached = "Boolean"> </FilterDescriptor>

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute

Description

Type

Required.

The type of the filter descriptor.

The following table lists the possible values for this attribute.

Value

Description

Limit

Used while querying an external system and the value of which can be interpreted as a limit on the number of external items (EntityInstances) that are returned when the method that it belongs to is called.

PageNumber

Wildcard

Used while querying an external system. Its value represents a pattern of regular and wildcard characters that is matched against the value of a particular field of the set of EntityInstances. The external system returns only those EntityInstances whose field values match the specified pattern.

UserContext

Used while querying an external system. Its value can be set automatically by any client application to the identity of the user who is calling the external system. This value can then be used by the external system to authorize and then filter the results returned.

UserCulture

Username

Password

LastId

SsoTicket

UserProfile

Used while querying an external system. Its value can be obtained by examining the current user's profile. The external system can use its value to filter the results returned.

Comparison

Used while querying an external system. An external system can compare a ComparisonFilter value with the value of a particular field of a set of EntityInstances and only those EntityInstances where the field values pass the comparison test can be returned.

Timestamp

Input

Used while calling an operation in an external system. An external system can use the value of an InputFilter as additional arguments for the operation.

Output

Used while calling an operation in an external system. Additional results of an operation that cannot be captured by ReturnTypeDescriptor can be retrieved as a value of the InputOutputFilter.

InputOutput

Used while calling an operation in an external system. An external system can use the value of an InputOutputFilter as additional arguments for the operation, and additional results of an operation that cannot be captured by ReturnTypeDescriptor can be retrieved as a value of the InputOutputFilter.

Batching

BatchingTermination

ActivityId

ActivityId is used when calling an operation on the external system. Its value is set to a GUID that represents the current operation context. If no such value is available, this filter generates a random GUID. On SharePoint Foundation 2010, this filter uses the CorrelationID.

FilterField

Optional.

Attribute type: String

Name

Required.

The name of the filter descriptor.

Attribute type: String

DefaultDisplayName

Optional.

The default display name of the filter descriptor.

Attribute type: String

IsCached

Optional.

Specifies whether this filter descriptor is used frequently. If set to true, Business Data Connectivity (BDC) service caches this filter descriptor in memory.

Default value: true

Attribute type: Boolean

Child elements

Element

Description

LocalizedDisplayNames Element in MetadataObject (BDCMetadata Schema)

The localized display names of this filter descriptor.

Properties Element in MetadataObject (BDCMetadata Schema)

The properties of this filter descriptor.

Parent elements

Element

Description

FilterDescriptors Element in Method (BDCMetadata Schema)

A list of filter descriptors of a method.

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