Questions tagged [constructor]
The constructor tag has no usage guidance.
59
questions
0
votes
1
answer
73
views
Apex Test - setSelected() is empty!
Hi I'm having an issue with a non-static test method which is passed a list of records from the standardSetController. I've called setSelected() and an instance of the non-static method but when I'm ...
- 19
0
votes
1
answer
74
views
Apex Test - Constructor Not Defined
Hi I'm having some issues with a test class which is calling a non-static method. I have looked at some previously asked question but I don't fully understand how to structure the calling of the class....
- 19
1
vote
1
answer
251
views
Gack Error Id : 2020409769-104966 (551437190) when there is no constructor without parameters
When a Lightning Action is called from LWC and a DTO model instance is passed, where the corresponding DTO Model class doesn't have no arguments constructor, an internal error is shown:
Gack Error Id ...
- 16k
0
votes
0
answers
501
views
System Assert Initial List Size
I have a class that has a constructor that is defining a list. I want to assert that the initial size of the list is set properly. An error is being throw when I run my test class around verifying the ...
- 3,431
0
votes
0
answers
35
views
When I preview my VF Page it renders blank (nothing is in the preview). What is wrong with my code? Or am I just testing it wrong?
When I preview my VF Page it renders blank (nothing is in the preview). What is wrong with my code? Or am I just testing it wrong?
Things of note:
It's using an invocable method and returning a list ...
user117449
0
votes
1
answer
49
views
Should I be using a better OOP pattern (DI, Factory?) for this API callout with a big wrapper class
I'm trying to up my OOP game and utilize good patterns where I can. Recently I wrote some classes that essentially take a custom object (a quote) and build a very long/complex api request body using a ...
1
vote
1
answer
981
views
What is host element in constructor hook in lwc lifecycle mean?
On the lwc lifecycle hook the documentation reads
The constructor() method fires when a component instance is created. Don’t add attributes to the host element during construction. You can add ...
- 141
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0
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1k
views
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&...
0
votes
1
answer
2k
views
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&...
0
votes
1
answer
515
views
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 ...
- 15
2
votes
1
answer
238
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 {
...
- 217
2
votes
1
answer
1k
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 ...
- 35
0
votes
1
answer
2k
views
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 ...
- 1,251
-2
votes
1
answer
110
views
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;
@...
1
vote
1
answer
345
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 ...
- 27
0
votes
1
answer
613
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.&...
1
vote
1
answer
619
views
Code coverage for constructor
Apex class:
public with sharing class PractitionerQTriggerHandler extends Domain{
/**
* Constructor
* @param records List of Records
*/
public ...
- 403
1
vote
1
answer
151
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 ...
- 11
1
vote
1
answer
2k
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 : ...
1
vote
1
answer
100
views
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 ...
- 11
0
votes
1
answer
232
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: [...
1
vote
2
answers
3k
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 ...
- 2,705
0
votes
1
answer
36
views
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 ...
- 265
1
vote
1
answer
325
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 ...
- 15
0
votes
1
answer
1k
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;
...
- 79
0
votes
2
answers
216
views
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,
...
- 35
0
votes
1
answer
436
views
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 ...
0
votes
1
answer
517
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 ...
0
votes
1
answer
604
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 ...
- 17
0
votes
1
answer
158
views
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 ...
- 387
-1
votes
1
answer
48
views
Constructor not defined: [PbxmlGroupConnection].<Constructor>(DataSource.ConnectionParams)
global class PbxmlGroupProvider extends DataSource.Provider {
override global List<DataSource.AuthenticationCapability> getAuthenticationCapabilities() {
List<DataSource....
0
votes
1
answer
66
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 ...
- 107
0
votes
2
answers
2k
views
How to define a constructor and pass parameters to schedulable controller [duplicate]
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 ...
- 183
3
votes
1
answer
6k
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
...
- 3,074
0
votes
1
answer
4k
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.
...
- 3
0
votes
1
answer
262
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;
...
- 1,587
-1
votes
1
answer
55
views
Initializing an instance variable
What are the benefits of initializing an instance variable in an instance block rather than constructor of the class?
- 31
2
votes
1
answer
256
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'...
- 73
-1
votes
1
answer
753
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;...
- 99
0
votes
1
answer
1k
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 ...
0
votes
1
answer
466
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:
...
0
votes
1
answer
665
views
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" ...
- 3
3
votes
1
answer
3k
views
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 ...
- 35.8k
3
votes
1
answer
5k
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;
}
}
...
- 4,016
-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 ...
- 177
0
votes
3
answers
2k
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){
...
- 2,208
0
votes
1
answer
23
views
(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
...
- 105
2
votes
1
answer
2k
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 ...
- 1,471
0
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1
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1k
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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;}
...
user31302
0
votes
1
answer
402
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 ...
- 2,940