Category Archives: Apex

We must handle error properly while writing a piece of logic in Salesforce. In case of error, we can capture error logs and throw error as well. Problem: If we try to insert logger before throwing error, logger record is not created because its roll backed because of exception throwing even if we use futureContinue reading “Error Logging Mechanism in Salesforce”

Please use format method of DateTime class to print day of week and day of month. Please see the below example which printing day of week and month to the debug log-

Sometimes while writing your code in trigger, you need to identify objects based on record id of the record. So, first three character of the recordId which is called key-prefix is used to identify object in code. For eg. a0u is the keyprefix which is used to identify Custom_Network_Case__c object as shown in below urlContinue reading “How to get key-prefix of salesforce object?”

Let’s say you want to get label of Opportunity Stage field, you need to use- Opportunity.StageName.getDescribe().getLabel()

This post will explain the various ways to get RecordTypeId, RecordType DeveloperName or Record Type Label in apex – Getting record type information using Record Type Label– Getting record type information using Record Type DeveloperName– Getting record type information using Record Type Id–

What is Bulk State Transition?: This pattern is used to perform bulk actions efficiently based on change of state of one or more records. Why Bulk State Transition?: We generally creates a utility to process bulk records here. Same utility can be used anywhere irrespective of triggers. Problem: We will taking an example of orderContinue reading “Bulk State Transition (Apex Design Patterns)”

What is Composite Design Pattern?: Composite is a structural design pattern that lets you compose objects into tree structures and then work with these structures as if they were individual objects. Composite design pattern treats each node in two ways:1) Composite – Composite means it can have other objects below it.2) leaf – leaf means it has no objects below it.Continue reading “Composite Design Pattern (Apex Design Patterns)”

What is Facade Pattern?: This is a structure design pattern which hides the complexity of the system and provides simple interface to the client. This pattern involves a class called as Facade which provides simplified methods required by clients and delegates its call to methods of existing classes. Why Facade?: There may be many complexContinue reading “Facade Design Pattern (Apex Design Patterns)”

What is Decorator Pattern?: Decorator pattern allows a user to add new functionality to an existing object without altering its structure. This type of design pattern comes under structural pattern as this pattern acts as a wrapper to existing class. This pattern creates a decorator class which wraps the original class and provides additional functionalityContinue reading “Decorator Design Pattern (Apex Design Patterns)”

What is Strategy Pattern?: Strategy is a behavioral design pattern that lets you define a family of algorithms, put each of them into a separate class, and make their objects interchangeable. The Strategy pattern (aka the policy pattern) attempts to solve the issue where you need to provide multiple solutions for the same problem so that oneContinue reading “Strategy Design Pattern (Apex Design Patterns)”

What is singleton?: Its a design pattern which restricts the instantiation of a class to one “single” instance only within a single transaction context. Why Singleton?: minimizing object instantiation for improved performance and to mitigate impact of governor limits Let’s discuss problem first then solution using singleton pattern- Problem: So in above example, if the record areContinue reading “Singleton Design Pattern (Apex Design Patterns)”

Developers around the world over the period of time invented some patterns (repeatable solutions) to solve some common occurring problems, we call it design patterns. We are working on multi tenant architecture in salesforce, all design patterns don’t work here. We have some tricky patterns here in Apex because of this architecture, we call itContinue reading “Apex Design Patterns”

Use the stripInaccessible method to enforce field- and object-level data protection. This method can be used to strip the fields and relationship fields from query and subquery results that the user can’t access. The method can also be used to remove inaccessible sObject fields before DML operations to avoid exceptions and to sanitize sObjects that have beenContinue reading “Enforce Security With the stripInaccessible Method”

Use the safe navigation operator (?.) to replace explicit, sequential checks for null references. This operator short-circuits expressions that attempt to operate on a null value and returns null instead of throwing a NullPointerException. If the left-hand-side of the chain expression evaluates to null, the right-hand-side is not evaluated. Use the safe navigation operator (?.) in method, variable, andContinue reading “Use the Safe Navigation Operator to Avoid Null Pointer Exceptions”

In order to process the large number of records, we use batch apex in salesforce. I hope you already know how to write a batch and how to use it. So I am giving you just few examples and important points to be considered while using the batch – Refer this for Iterable example. UsingContinue reading “Batch Apex Similified”