Monday, June 22, 2015

What is Synchronous and Asynchronous in Salesforce.

What is Synchronous and Asynchronous in Salesforce.



Apex can be executed synchronously or asynchronously.

Synchronous:


In a Synchronous call, the thread will wait until it completes its tasks before proceeding to next. In a Synchronous call, the code runs in single thread.

Example:

Trigger
Controller Extension
Custom Controller


Asynchronous:

In a Asynchronous call, the thread will not wait until it completes its tasks before proceeding to next. Instead it proceeds to next leaving it run in separate thread. In a Asynchronous call, the code runs in multiple threads which helps to do many tasks as background jobs.

Example:

Batch
@future Annotation








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