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What is iterable in Batch Apex?
To collect the records or objects to pass to the interface method execute , call the start method at the beginning of a batch Apex job. Use the iterable to create a complex scope for the batch job. You can also use the iterable to create your own custom process for iterating through the list.
What is iterable in Batch class?
1. If you use an iterable the governor limit for the total number of records retrieved by soql queries is still enforced. 2. if your code accesses external objects and is used in batch Apex, use iterable instead of Database.
How does iterable work in batch apex developer community?
While it may have the same limits, it has a certain flexibility that you won’t find when you limit yourself to just SOQL statements. Database.getQueryLocator is great if the data you’re processing is already in Salesforce, and so most developers will never need a custom iterator.
What is the interface method in batch apex?
Used to collect the records or objects to be passed to the interface method execute for processing. This method is called once at the beginning of a Batch Apex job and returns either a Database.QueryLocator object or an Iterable that contains the records or objects passed to the job.
What’s the default batch size for batch apex?
Performs the actual processing for each chunk or “batch” of data passed to the method. The default batch size is 200 records. Batches of records are not guaranteed to execute in the order they are received from the start method.
When to use batch apex vs queueable apex?
The longer the batch job executes, the more likely other queued jobs are delayed when many jobs are in the queue. Best practices include: Only use Batch Apex if you have more than one batch of records. If you don’t have enough records to run more than one batch, you are probably better off using Queueable Apex.