Class

NSMetadataQueryAttributeValueTuple

The NSMetadataQueryAttributeValueTuple class represents attribute-value tuples, which are objects that contain the attribute name and value of a metadata attribute.

Declaration

@interface NSMetadataQueryAttributeValueTuple : NSObject

Overview

Attribute-value tuples are returned by NSMetadataQuery objects as the results in the value lists. Each attribute/value tuple contains the attribute name, the value, and the number of instances of that value that exist for the attribute name.

Topics

Getting Query Attribute/Value Information

attribute

The attribute name for the tuple’s value.

count

The number of instances of the value for the tuple’s attribute.

value

The value of the tuple’s attribute.

Relationships

Inherits From

See Also

Getting Query Results

results

An array containing the query’s results.

resultCount

The number of results returned by the query. (read-only)

- resultAtIndex:

Returns the query result at a specific index.

- indexOfResult:

Returns the index of a query result object in the receiver’s results array.

groupedResults

An array containing hierarchical groups of query results. (read-only)

NSMetadataQueryResultGroup

The NSMetadataQueryResultGroup class represents a collection of grouped attribute results returned by an NSMetadataQuery object.

- enumerateResultsUsingBlock:

Enumerates the current set of results using the given block.

- enumerateResultsWithOptions:usingBlock:

Enumerates the current set of results using the given options and block.

valueLists

A dictionary containing the value lists generated by the query.

- valueOfAttribute:forResultAtIndex:

Returns the value for the attribute name attrName at the index in the results specified by idx.

- enableUpdates

Enables updates to the query results.

- disableUpdates

Disables updates to the query results.

operationQueue

The queue on which query result notifications are posted.