Questions tagged [asynchronous]
An asynchronous process is a process or function that executes a task "in the background" without the user having to wait for the task to finish. Typically, you will use Asynchronous programming for callouts to external systems, operations that require higher limits, and code that needs to run at a certain time.
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How to avoid running a batchable when an instance is already running?
We have several batchables that if run in parallel trample over each other's results. So I want to block a second invocation if there is already one running and just tell the user to wait.
My first ...
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Overcome Queueable maximum depth limit in dev orgs
To migrate "trees of related data" from an external system to Salesforce I am using dynamic chains of Apex Queueables. Imagine I am "synchronizing" Accounts, Opportunities and Contacts from an ...
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What's the difference between AsyncApexJob and CronTrigger?
Roughly I know that when I schedule a Schedulable, I'm creating both a CronTrigger and an AsyncApexJob, but I'm confused as to how the two objects relate to each other and what the significance of ...
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Using @future tag on Apex Webservice but code not executing asynchronously
With the winter '15 release over the weekend some mission critical code for us is now getting the infamous "Apex CPU time limit exceeded". It worked fine for the past 8 months until this release. (as ...
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System.AsyncException: No enclosing class for method: methodName
I have this error that says "System.AsyncException: No enclosing class for method: methodName".
The code structure :
trigger trgSendRecords on DataSetup__c (after insert) {
/* SOME BUSINESS ...
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Can Database.executeBatch be called from a Queueable started by System.enqueueJob?
I'm aware that you can't call Database.executeBatch from the execute method of an already running Batchable.
But can Database.executeBatch be called from a Queueable running via System.enqueueJob? I'm ...
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Change Data Capture vs Queueable Apex
With the introduction of Change Data Capture, now there is one more way to execute Asynchronous Apex.
What are the advantages of Change Data Capture over Queueable Apex?
How Salesforce will enqueue ...
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Keep track of chained Queueable
I'd like to insert a lot of records. Chaining Queueable classes seems to be the way to go in my scenario, I am just wondering if the following is feasible:
keep track of chained jobs - when first job ...
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Testing the ACTUAL batchable context in Database.Batchable methods?
I'm trying to mock Database.BatchableContext to make my unit tests more robust and to eliminate excess usage of Test.isRunningTest() running in production code. Few hacks are available like Json....
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Does Test.stopTest() cause ALL waiting asynchronous functions to fire?
For practice, I'm composing on a unit test for a Schedulable class:
/**
* Example of scheduling Apex Batch Processing
* @see Apex Workbook, page 68
**/
global class WARE_CleanMerchandiseScheduler ...
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How do we resolve LWC timing issues with less trial-and-error?
It seems like a more comprehensive discussion of LWC async programming would be helpful. Luckily most stuff works if you follow the LWC examples, but once your design falls outside the examples, ...
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Are start() methods of batches guaranteed to run sequentially?
The question is very similiar to this one: Are batch jobs guaranteed to run sequentially?
I basically want to ask the same thing, except this time for start() method.
Do start() methods of ...
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Batch execute is slow because of huge unused gaps in DevConsole timeline
I have a long running batch that is taking days to execute and creates millions of records. To speed it up I used the profiling tools of the Developer Console.
Per batch execute() I see this timeline
...
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Is there any way to unit-test that a function will run into a LimitException?
I need to write a test that verify that a function call is run synchronously.
As I have found no elegant way to find that out I now let my function run into a Limit which is an indirect proof that ...
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How bad an idea is it to make a server side "save" call in disconnectedCallback?
This LWC lifecycle method is documented as:
Use disconnectedCallback() to clean up work done in the
connectedCallback(), like purging caches or removing event listeners.
Not that the set of ...
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Does Apex Engine maintains old version of apex code for Async Apex?
Suppose I have a batch running that is processing millions of records(that would take hours), then I deploy a code during execution that changes the batch logic, will remaining record get processed ...
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CDC processes all 9999 requests at once. Is this by design or a bug?
In salesforce documentation batch size of platform event is mentioned as 2000 maximum (documentation). Which it definitely follows (tested). But for CDC its not mentioned. I also tried this in my dev ...
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Avoid new record race conditions with FOR UPDATE [closed]
Under simple circumstances FOR UPDATE does only respect records that existed when the query was executed. But I need all available records matching my query when the transaction proceeds.
Let me ...
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Can a Change Event Trigger include the same record multiple times?
I'm starting to play with Change Event Triggers, building a handler framework and I'm not sure if I need to handle a scenario where the same record would be included in the same Change Event trigger ...
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JavaScript Remoting on Standard Page Layout
I have a couple of JavaScript remoting functions used to count records and to display that count to the end user. The JavaScript remoting functions are on a Visualforce page, and the Visualforce page ...
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Testing multiple asynchronous processes
I have a test that for it's data setup I need to fire multiple asynchronous processes. I have a suspicion, that they do not finish sequentially one after another.
I think Test.startTest()/Test....
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Why would a future method not show up in debug logs?
What are some possible reasons a future method wouldn't show up in the debug logs?
@Future(Callout=true)
global static void myFutureCallout(Id testId){...
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How do static and member variables behave in a. stateful batch classes?
Suppose I have a batch job and I want to maintain state (i.e. want to keep a log of the record ids that I've processed, or keep a running total, or something).
When would I use class variables vs. ...
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How to check if future method has executed
in my apex code I need to do some calculation only when future method has executed
I tried below code to check if future method has executed:
public static void anotherMethod() {
while('Completed' != ...
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Promises in Apex?
We have a very complex scenario where we have multiple external systems that we interact with and we need to make sure the data is valid across multiple external systems before it gets processed ...
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Can Salesforce Platform Events be Relied on as an Async Solution?
Recently I was working on a project where, in order to deal with recursion and governor limits, the previous developer decided to send Platform Events, with the expectation that the very same ...
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Why am I not able to get full 60 second CPU time in @future method with getContentAsPDF()
I'm trying to generate a PDF, and in normal Apex execution the function is haulted due to CPU timeout (exceeding 10 second execution time).
So I tried using @future annotation to use Asynchronous ...
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@future method vs Async callout
Some days ago I imported a WSDL into Salesforce and (different of some years ago) it created an Async class (and of course the sync class). So I decided to search on Google how to use this Async class....
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Is Lead.Name 100% predictable?
We have an integration with a third party site which requires an exact match for the Lead Name.
When we have a new lead, we need to make a call out to this website.
In Trigger.new, Lead.Name is always ...
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Custom Logging and Future Methods
I have been reading up on the custom logging, DML, and exceptions but haven't seen anything that talks about @Future methods and exceptions.
I have two scenarios:
A Button is clicked on a Lead, ...
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Synchronizing force:recordData and external JavaScript library on loading
I've got situation in lightning component where on init there should be used data from two sources:
record loaded via force:recordData
data from this record parsed with
use of external JS library ...
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How to monitor not yet started jobs of a Queuable chain
I am wrapping my head around how to use Apex Queuable as a queue and not as a chain.
As I understand all the code samples out there, the next job is enqueued after the work of the previous one is done....
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Does the FOR UPDATE field apply to reference fields?
If do a query like [SELECT Opportunity.Name, Product2.Name FROM OpportunityLineItem FOR UPDATE], is the Opportunity and Product2 locked, or just the OpportunityLineItem? I'm trying to set a field on ...
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When and why do I need to perform an .isValid() check?
This document - Modifying Components Outside the Framework Lifecycle - says the following:
You don't need a cmp.isValid() check within this setTimeout() call as
the cmp.set() call doesn't do ...
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Asynchronous getContent hit org.apache.commons.httpclient.RedirectException: Maximum redirects (100) exceeded
we're having an issue with getContent() in asynchronous context, and I just can't find any way to work around it... We're exposing invocable Apex in our managed package, and one of them allow our ...
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Performing on-demand record updates in real-time, asynchronously
I am trying to understand how the real-time mode of the Rollup Helper app works behind the scenes. I am looking for ways this can be achieved with, not necessarily how the developers built this ...
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Why does my ActionPoller wait for my batch process to be done before it polls?
I have a CommandButton that calls a method in the controller that starts an Apex batch processes. I have an ActionPoller that is supposed to get the current progress of the batch process and update ...
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Asynchronous Callout from an Imported WSDL
I developed VisualForce page with asynchronous callouts to web service according to link.
It is working fine, my page is showing results after callback is returned.
I really like pattern with ...
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Invocation of scheduled class : starts - schedules - completes without a trace. No debug log
I've got an Apex Class that implements System.Schedulable which I'm trying to run:
public class Broker {
//...
public class Worker implements System.Schedulable {
public void ...
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How can I decompose a Lightning Component Helper to escape deep nesting hell?
I'm trying to figure out more maintainable ways of composing Lightning components.
I'm currently looking at the helper on Display Weather Alerts in Lightning Experience, trying to break it down into ...
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Making an Asynchronous Callout from another class
I have a question regarding Making an Asynchronous Callout from an adapter class that I made in apex.
Description:
So i followed the Making an Asynchronous Callouts from imported WSDL guide from ...
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Best architecture solution for Mixed DML Exceptions inside a Batch
I am writing an apex Batch
First I am updating a few EmailTemapltes and then I need to write to a custom object.
public void execute(Database.BatchableContext context, List<EmailTemplate> scope) ...
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LWC: Second async child function call fails
I would like to call an async function on a child component from its parent. This works the first time I call the function, but the second time, I get a "Sorry to interrupt" error with this:...
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Unable to do callout from PostInstall Script
As per the Salesforce documentation, Post-Install script can perform callouts using an async operation only.
https://help.salesforce.com/articleView?id=apex_post_install_script.htm&type=5
So, I ...
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Platform Events + Process Builder + Apex with @future method
I'm running into an issue with too many future calls when handling Platform Events with a Process Builder that uses an invocable Apex class.
Basic setup is 2 processes:
The first publishes an event ...
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How to Target Element In Modal After Opening Modal
I have a custom modal component (with slots) that can be opened and closed. In a parent component I'm using this modal component and inside the body slot of the modal I have a <lightning-input> -...
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Concurrent Request Limit Exceeded - Possible Solutions
In the recent past we've replaced two very old s-control type and html mashups with visual force pages and web services. This changes along with a few other visual force pages built into our standard ...
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Continuations (Async Web Services) in Spring 15 Sandbox [closed]
According to Spring 15 release notes, Continuations class should be available in Spring 15. I have a preview Sandbox (on CS21) but this feature does not appear to be enabled as the Apex does not ...
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Why does this Batch always and only abort in Production?
I have a long running asynchronous process that process millons of records in a CustomObject__c. To prevent other limits we have split this into 2 Batch classes that work on this table in parallel. So ...
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Mutation of Finalizer state
Below is the statement from documentation:
The Finalizer framework uses the state of the Finalizer object, if one
is attached, at the end of Queueable execution. Mutation of the
Finalizer state, ...
