Questions tagged [constructor]

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Call method with String return in another class

I'm trying to get required information (currentCompany()) via method: public without sharing class RemoveUserInfo implements Queueable { private List<User> users; private List<Account&...
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Error during LWC component connect phase: [Maximum call stack size exceeded]

I am trying to assign value to a property of my parent component's constructor method. Below is the html code: <template> {welcomes} <c-testfile></c-testfile> </template&...
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LWC constructor and wire adapter

Already wire adapter was there in LWC i.e. @wire annotation to display the records,so can we do the same thing (display the records) through LWC constructor also? If yes, then why @wire feature was ...
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1 answer
113 views

Constructor chaining giving method not defined

I have the following class with constructor chaining , but the validations are returning Method not found or incorrect signature class @IsTest global class CalloutMock implements HttpCalloutMock { ...
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2 votes
1 answer
176 views

How can I export an LWC function that's declared within a constructor?

I have a function that is declared within my default class (constructor) that I would like to export to a Jest test suite. Is this possible? testLWC.js import { LightningElement } from 'lwc'; export ...
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How to use Wrapper Class in constructor and call it in Queueable?

My Queueable Apex class worked fine before but after discovering Apex PMD ruleset, found that using >4 parameters in any method or constructor is not best practice. I tried searching up answers ...
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i need a little help ): with constructors in apex class

public class OrderItemWrapper{ @AuraEnabled public string orderItemName; @AuraEnabled public decimal orderItemQuantity; @AuraEnabled public decimal orderItemAvailableQuantity; @...
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38 views

Cannot call class from within another class

I have two classes. Inside class B, I want to use the method written in the class A. And I dont know why I get error. Class A look like this: public class ZipCodeUpdateOwnerships { //This ...
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186 views

Can @future be called in constructor of a class

Trailhead Link - https://trailhead.salesforce.com/content/learn/modules/asynchronous_apex/async_apex_future_methods#:~:text=Future%20methods%20won't%20necessarily,same%20order%20they%20are%20called.&...
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1 vote
1 answer
166 views

Code coverage for constructor

Apex class: public with sharing class PractitionerQTriggerHandler extends Domain{ /** * Constructor * @param records List of Records */ public ...
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1 answer
71 views

why Soql have to be inside constructor

hi I'm new to salesforce. I have a basic question hope you guys can help me. I'm doing "Display a SOQL query on a Visualforce page" but throughout all the information i found query have to ...
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1 vote
1 answer
441 views

Any risk in recompiling all Apex classes in org?

Running into an issue with a deployment, getting a ton of errors of the following flavor: line -1, column -1: Dependent class is invalid and needs recompilation: Class MeansRegisterCustomerTest : ...
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Unknown Constructor error for extension controller

Hi im trying to use an extension controller for some kind of calculation in my vs page and getting error about the constructor: Unknown constructor... any help with that? code public with sharing ...
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131 views

Encountering Constructor not defined in test class

I'm scheduling a batchable class that deletes records from a custom object. The test class for my scheduled class saves without errors. However, I'm getting a "Constructor not defined: [...
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1 vote
2 answers
654 views

how to call constructor class method by calling constructor

i want to load wrapper class with one shot, but I couldn't able. may be still my oops skills are weak. i feel we can write much better way public class WrapperA{ public Id sobjerecid; public ...
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Constructor not defined error - error after setting date fields as null during object creation

I have created a wrapper class to create an Object and send it as a request to a third party system. It was working well. But after I added a two new arguments of the Datatype Date, I am getting the ...
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1 vote
1 answer
63 views

Unknown constructor issue

I have an apex class for which i get error: uknown constructor the code: public with sharing class SendDocumentCont{ public String .... public SendDocumentCont(ApexPages.StandardController c) what ...
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233 views

APEX - Initialize sub classes in a constructor

I am trying to find a solution to initialize a subclass in a constructor, but I have the following error message : Variable does not exit: Info public class Products { public String Name; ...
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2 answers
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How do I instantiate a list of objects, where each object has 3 data types?

JS developer here. I'm sending a JSON node to my Apex class and it's in the following format: "myNodeName" : [ { "id": "a123", "foo": true, ...
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Writing test class for constructor

like title says ,I'm trying to write a test class for the following constructor , but I'm getting Constructor not defined error. My method is : public class AccountPlanSumLightningController { public ...
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92 views

Use invocable method on the MergeCaseController, error that i will not be able to use the invocable method on a constructor. thank you

I am trying to use the invocable method on Public MergeCaseController(ApexPages.StandardsetController controller) so that i can call this from a flow.. But i am having issues doing so, public ...
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212 views

How do I call this method inside of inner class

Hello im really confused about how to call requestBody(Id quoteId) inside this code I created using inner classes: public class PT_Interface{ public class Request_Model { public ...
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How to properly construct a callout

I'm trying to setup a callout class to properly handle the passing in of a few variables to build an endpoint string. As you can see below I'm struggling with how and where to declare certain ...
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-1 votes
1 answer
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Constructor not defined: [PbxmlGroupConnection].<Constructor>(DataSource.ConnectionParams)

global class PbxmlGroupProvider extends DataSource.Provider { override global List<DataSource.AuthenticationCapability> getAuthenticationCapabilities() { List<DataSource....
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1 answer
49 views

List is not constructed in memory until I print it

I'm confident that I'm missing something here. I'm not able to evaluate a list of Ids until I print it using System.debug. In the snippet below, I take a list of Accounts and extract the Ids from ...
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1 answer
1k views

How to define a constructor and pass parameters to schedulable controller

I have a situation where I need to pass a string to schedulable controller from batch or any apex controller. I see that we can do it using public constructor in schedulable implementation. Please let ...
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3 votes
1 answer
3k views

LWC constructor() error: "Must call super constructor in derived class before accessing 'this' or returning from derived constructor"

I'm getting the following error: Must call super constructor in derived class before accessing 'this' or returning from derived constructor after adding a very simple test constructor to my LWC ...
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1 answer
3k views

Constructor Syntax in Batch Class

I'm new to the development side with no real development background in any language. So I wrote this batch class, and I can't quite figure out how to implement the proper syntax for the constructor. ...
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71 views

Variable remains empty after initialization

Simple Apex (Java actually) question, after I initialized the variable 'a' in a constructor, I tried to access it with a different method but it remains null. Class FirstClass{ String a; ...
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-1 votes
1 answer
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Initializing an instance variable

What are the benefits of initializing an instance variable in an instance block rather than constructor of the class?
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2 votes
1 answer
149 views

How to disable constructors in custom exceptions?

There is a lot out there on how you can't override exception constructors and how to do custom exceptions, but I haven't been able to find anything on disabling a constructor for an extended class. I'...
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-1 votes
1 answer
393 views

Create a constructor for an outer class with inner classes that have constructors?

What would a constructor for the outer class of the following look like? public class outerClass { public Data data {get;set;} public class Attributes { public String symbol {get;...
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1 answer
828 views

Batch Test class Constructor Not Defined problem [duplicate]

I have the following problem in a test class. Constructor not defined: [Soma_Dependentes_Update].<Constructor>() Test class of the batch process: @isTest public class ...
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344 views

Constructor not defined error on Event trigger

I'm fairly new to development but I'm currently trying to move some triggers into classes to follow the one trigger per object design pattern. I'm getting the following error in the trigger: ...
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Constructor not defined executeBatch trigger to pass ID to batch class

Ok...trying to write my first class and trigger and running into a wall that I can't seem to get over on my own. Use case: on a custom object called manufacturer__c, when a field goes to "in Process" ...
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2 votes
1 answer
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Call Parametrized constructor using Type.newInstance()?

I am designing a solution where it should be flexible to add handlers using configuration. So I am saving the handler class name in the custom metadata record and then would be instantiating it using ...
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3 votes
1 answer
3k views

Return null instance when constructor parameter is null

So I want to have some sort of condition like this: public Foo( Id baz ){ if(baz == null){ return null; } else { this.entry.baz = baz; } } ...
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-2 votes
1 answer
2k views

String value from constructor to Apex methods

I have set a value to a static string variable in constructor and while I try to access that value in my apex methods , I always receives as NULL. public class Mycontroller { public static string ...
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  • 165
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3 answers
1k views

Use Type class to call parameterized constructor

Using this to get below working: public class t12345 implements Database.Batchable<sObject> { String query; Boolean xyz; public t12345(String query){ ...
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0 votes
1 answer
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(re)Scheduled class with count. Initialized to 0, increased to 2. Don't understand why

I have a schedulable class that will be rescheduled again. This class contains a count. Here is how it is supposed to work constructor set count to 0 a run method increase count then test condition ...
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2 votes
1 answer
1k views

Setting field value in sObject constructor vs after instantiation

My question: Why can you set a value of a field like ParentId on the CaseTeamTemplateRecord object in the constructor during instantiation, but receive an exception if you set the value after ...
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0 votes
1 answer
833 views

how to call the constructor of the apex controller in the test class

Below is my controller class. Public class VMSalesOrderUserEditpage{ public list<VM_Sales_Order__c> vmList{get;set;} public VM_Sales_Order__c VMSOrd {get;set;} public string vmId {get;set;} ...
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0 votes
1 answer
285 views

Pass public string value from constructor to apex page

I have been setting a public string from apex controller's constructor at the end. I can see that value in debug log. But when I pass that to Apex page it shows null. Can someone please let me know ...
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2 votes
1 answer
978 views

StandardSetController Test Class - 'Constructor not defined'

I am trying to write a test class for a StandardSetController with a very simple extension that processes a list of records that were selected from a related list. I am coming up short on how to get ...
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4 votes
1 answer
91 views

Why does this() in an if statement not throw compiler error

Using 'this();' inside an if statement in a constructor does not throw a compiler error. It should throw 'Call to 'this()' must be the first statement in a constructor'; If it is allowed then it ...
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1 vote
0 answers
907 views

VisualForce: Dynamic Page Headers based on Parameters works as expected until adding actions to page

Background: I am working on a VisualForce page to allow our customers to 'Add to Calendar' from an email alert that they receive when we book an Event. The Apex page takes 2 parameters right now, ...
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0 votes
2 answers
834 views

Defining Constructor [closed]

When I try to run my codes they keep on giving me an error saying Constructor not Define [testFBInt].<Constructor>(). I do not understand whats the problem and why it keep on giving me that ...
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2 answers
484 views

What fields and syntax for constructor to create records to add to a list<object>

So I'm creating a list of child records for a parent using a loop. Is there a way I can create the child record as I add it to the list instead of creating the object and setting the variables? list&...
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  • 1,580
1 vote
1 answer
780 views

Extension/Constructor on a Component

I have a Component inside of a Visualforce Page. I am not sure if this line of connection is causing a break but my issue is with my constructor. It is not taking in the params I am passing: Page: &...
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2 answers
69 views

Class with a constructor that loads all sObjects given a user record

I'm trying to build a class that will gather user information across multiple sObjects. The class needs a constructor that loads all sObjects given a user record. This will be the current user logged ...
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