Contents

1. Objective
2. Overview
3. Detailed information

Objective

The Filtering and Collection middleware provides an interface through which clients may interact with filtered, consolidated EPC data and related data from a variety of sources. Its an implementation of the EPCglobal standart ALE 1.1.

Overview

From a global view one can split the Fosstrak Filtering and Collection framework into 3 layers that are built on top of each other.

• org.fosstrak.ale.server: This layer provides the interface to the client through the class ALE. This includes:
  • Tag filtering and reports generation
  • EventCycle and ReportsGenerator administration
  • Client subscription/unsubscription
• org.fosstrak.ale.server.readers: This layer models the logical reader API. This includes:
  • Tag aggregation
  • Reader management
• org.fosstrak.ale.server.readers.XYZ: This layer acts as the layer to the physical hardware. This includes:
  • Aquiring of the tags
  • Maintenance of reader connections

Detailed information

For detailed information please refer to the chapters:

• Application Layer Events
• Event Cycle
• Reports generation
• Reports notification
• LogicalReader Concept (logical reader API)