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Tables and Listings
Assigning Values to Metadata Attributes 9
Listing 1 Sample importer's schema.strings file 11
Spotlight Importer Schema Format 12
Table 1 Table 2 Attributes of attribute element 13 Attributes of type element 14
Writing a Spotlight Importer 15
Listing 2 Listing 3 Listing 4 Listing 5 Listing 6 Listing 7 Listing 8 Listing 9 Metadata importer Info.plist template 16 Setting the importer ID in main.c 17 UTExportedTypeDeclarations format 18 Metadata Importer schema.xml template 19 schema.xml file for the sample metadata importer 20 Sample importer's schema.strings file 22 GetMetadataForFile template implementation 22 Objective-C implementation of GetMetadataForFile for the sample metadata importer 23
2011-09-21 | 2004, 2011 Apple Inc. All Rights Reserved.
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About Spotlight Importers
Spotlight metadata importers extract metadata from custom file formats after files are saved, copied, or moved. That custom metadata can then be searched from applications, both System applications and custom applications,. The files can be searched on local disks and networked storage on Mac OS X.
Who Should Read This Document
If your applications supports saving its custom file formats to disk, you should consider providing Spotlight support by implementing a metadata importer. Read this document to learn how metadata importers work and how to write an importer.
Organization of This Document
The following articles cover key concepts in understanding how metadata importers work:
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"Extracting Metadata from Files" (page 7) describes the role of the metadata importer and its components. "Assigning Values to Metadata Attributes" (page 9) provides an overview of the Spotlight metadata attributes and explains how to define your own attributes. "Spotlight Importer Schema Format" (page 12) describes the format of a Spotlight importer schema file.
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These articles explain how to implement metadata importers:

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