To implement the `isDeletable()` check in batch processing scenarios, you should explicitly verify the user's permission to delete records before performing any delete operation. Here's the correct implementation:
```apex
global class BatchDeleteExample implements Database.Batchable<sObject> {
global Database.QueryLocator start(Database.BatchableContext BC) {
return Database.getQueryLocator('SELECT Id FROM YourObject__c');
}
global void execute(Database.BatchableContext BC, List<sObject> scope) {
if (Schema.sObjectType.YourObject__c.isDeletable()) {
delete scope;
} else {
System.debug('User does not have delete permissions for YourObject__c.');
}
}
global void finish(Database.BatchableContext BC) {
System.debug('Batch process completed.');
}
}
```
### Key Points:
1. **Permission Check**: The `isDeletable()` method checks if the user has delete permissions for the object.
2. **Conditional Deletion**: If the user has the required permissions, the delete operation is executed on the batch scope.
3. **Fallback Handling**: If the user lacks permissions, the operation is skipped, and a debug message is logged.
4. **Finish Method Implementation**: In finish methods, use the **PermissionManager** to verify if the user has delete permissions on the relevant object, especially when the delete operation involves custom settings or records that could impact other users.
This ensures compliance with CRUD/FLS security requirements during batch processing.