Product Documentation

FairCom ISAM for C

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File Notification

Notification is a novel evolution of our enhanced Server-Side Queue (system queue) support. Using the facilities of c-tree system queues, client applications can direct the FairCom Server to monitor a data file and place notification messages on a queue when changes are made to the file.

This chapter discusses both synchronous and asynchronous processing:

  • Synchronous File Notification - The file notification feature is a memory-based queue that is synchronously executed.
  • Asynchronous Record Update Notifications - Record Update Notification callback functions allow applications to externally process records as they are modified (added, updated, and deleted) and are asynchronously processed and persisted.

Notification Graphic

In This Chapter

Synchronous File Notification

Asynchronous Record Update Notifications

Using File Notification