| Barcode | 
 An extracted barcode. 
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| BarcodeCleaner | 
 This implementation cleans all barcode template objects. 
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| BarcodeGenerator | 
 This servlet generates a barcode on demand. 
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| BarcodeManager | 
 Utility methods for barcodes 
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| BarcodeParser | 
 This is the parser that using a pattern is able to extract documents metadata
 from the given barcode. 
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| BarcodePlugin | 
 Web module plugin class. 
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| BarcodeProcessor | 
 This component processes all valid documents to find barcodes. 
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| BarcodeServiceImpl | 
 Implementation of the BarcodeService. 
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| BarcodeSpec | 
 A barcode specification. 
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| BarcodeTemplate | 
 A barcode template that explains how to process the barcodes 
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| BarcodeTemplateImageServlet | 
 This servlet is responsible for downloading the image of a Barcode Template. 
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| BarcodeTemplatesDataServlet | 
 This servlet is responsible for barcode templates data. 
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| BarcodeWriter | 
 Utility class used to produce barcode images. 
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| ConvertLegacy | 
 Reads the old barcode patterns in ld_generic and convert them in
 ld_barcodetemplate (used in upgrading 8.4.1 to 8.4.2)
 
 
 The legacy storage uses generics:
 
 Type: barcode-pattern
 Subtype: templateId-position(1,2,3..)
 Integer1: position(1,2,3..)
 String1: comma separated list of patterns
 String2: inclusion expressions
 String3: exclusion expressions
 String4: admitted barcode formats
  
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| HibernateBarcodeTemplateDAO | 
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| PDFImageExtractor | 
 This utility class allows the extraction of raster images from a PDF document 
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| ToBarcodeDataServlet | 
 This servlet is used to populate the barcode queue 
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