NSOperation Class Reference

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Overview

Operation Dependencies
KVO-Compliant Properties
Multicore Considerations
Concurrent Versus Non-Concurrent Operations
Subclassing Notes

Methods to Override

Maintaining Operation Object States

Responding to the Cancel Command

Tasks

Initialization
Executing the Operation
Canceling Operations
Getting the Operation Status
Managing Dependencies
Prioritizing Operations in an Operation Queue
Managing the Execution Priority
Waiting for Completion

Instance Methods

addDependency:
cancel
completionBlock
dependencies
init
isCancelled
isConcurrent
isExecuting
isFinished
isReady
main
queuePriority
removeDependency:
setCompletionBlock:
setQueuePriority:
setThreadPriority:
start
threadPriority
waitUntilFinished

Constants

NSOperationQueuePriority
Operation Priorities

Revision History

COMPANION GUIDE

Concurrency Programming Guide