Questions tagged [reflection]
Reflection allows a developer to essentially modify the behavior of the code at runtime. Currently there is little support for reflection in Salesforce.
18
questions
1
vote
4
answers
3k
views
Can you check the instanceOf an object dynamically?
Updated after several answers and comments, to clarify the requirements
I have an Open Source library and am looking to implement a method that will check if an object is an instance of a given type. ...
- 938
1
vote
0
answers
666
views
Should it still be possible to access public classes belonging to managed packages?
There is a critical update, Restrict Reflective Access to Non-Global Constructors in Packages
When this critical update is enabled, regardless of API version, you can initiate only Apex classes that ...
- 909
0
votes
2
answers
586
views
How can I get dynamic API name in apex?
I have an question,I created a FieldSet named Detailed_Content in several sObjects,now I want get one of sObjects's Detailed_Content FieldSet,like the following code:
public List<Schema....
1
vote
1
answer
2k
views
How can I create a Map<Id, Account> from a List<sObject> parameter when I know all the records are Accounts?
I'm doing some work with the ESAPI Library. In particular, when updating records it is used to enforce FLS with the following method:
global SFDCAccessControlResults.UpdateResults updateAsUser(
...
- 102k
1
vote
1
answer
7k
views
Get Attributes from an Apex Object Dynamically
Is it possible to get the name of the attributes of an apex class? I have a class below, is it possible to get the name of its fields at runtime?
public class MyObjectApex {
public String name {...
- 15
1
vote
2
answers
130
views
Send object name into a function
I was trying to pass an object name to a function as an String but I was 99% sure that it won't work and it didn't work. So I am wondering how is it possible to send an object name to function.
void ...
- 171
3
votes
1
answer
485
views
Managed package cannot see a class from another managed package
We have a following setup:
a managed package pkg_a which provides a global virtual class Cls_A to be extended
a managed package pkg_b which contains a global class Cls_B that extends pkg_a.Cls_A
a ...
- 345
7
votes
2
answers
2k
views
Dynamically calling methods in Apex
Assume this simple class in a managed package namespaced PKG:
global class Semaphore
{
private static Boolean m_isLocked = false;
global static Boolean lock() { m_isLocked = true; }
...
- 3,906
7
votes
1
answer
3k
views
Type.forName(namespace, classname) returns null in managed package
I'm trying to pass a class name from a subscriber org up into a managed package, to make the package extensible. The package is going to use Type.forName(namespace, classname) to create an instance of ...
- 13.5k
0
votes
2
answers
863
views
Using getSobject to fetch the parent Account of an Account
I would like to dynamically fetch the parent Account of an Account in a similar fashion to the way it's done in the selected answer to this question. However, this doesn't seem to work in this case. ...
- 1,029
5
votes
3
answers
314
views
How to differentiate LIST apart from HIERARCHY setting in Apex?
My Apex code needs to dynamically reflect on user-defined Custom Settings. But the user could use a List or Hierarchy depending on their needs, so I need to be a bit careful manipulating each type.
...
- 32.5k
2
votes
1
answer
260
views
What are all the public methods for Messaging.SingleEmailMessage
I am wrote a wrapper class that builds Messaging.Email instances but need to test that the Messaging.Email object is built properly. The published API at
https://www.salesforce.com/us/developer/docs/...
- 55
0
votes
2
answers
1k
views
How can I mock a query of ApexClass for testing?
While recently working on a large project where unit test executions would run upwards of 2 hours, we realized we could get a performance gain by avoiding touching the database (e.g. SOQL and DML) ...
- 4,508
49
votes
7
answers
59k
views
How to get the Runtime-Type of an Object dynamically (for Primitive Data Types and SObjects)
Is it possible to get the Type of an Object (it's not an SObject)?
String s = 'test';
doSomething(s);
public static void doSomething(o Object) {
// need to find out if o is a string or an ...
- 28.3k
39
votes
3
answers
32k
views
Return Name of class from instance of that class
I need a quick approach to something like:
MyClass mc = new MyClass();
String theName = ClassNameProvider.getName(mc); // returns 'MyClass'
- 2,419
8
votes
2
answers
5k
views
How to get the attribute class list
Does exist on apex something like Class.getDeclaredFields?
I need to loop on class attributes dynamically :
public class MyClass
{
public type1 att1;
public type2 att2;
...
public void function()
{
...
- 6,931
2
votes
2
answers
2k
views
How to get fields in deeper object tree levels with reflection
I'm constructing a dynamic query to get some fields from the database. I use a root object for that purpose and branch out from it.
My_Custom_Object__c
-> Account__r.Id
So if I want to get an ...
- 3,684
10
votes
2
answers
8k
views
How to invoke a method of an apex class at run time
We have a usecase where we need to invoke an instance of a class and invoke a method at run time using string. I know with reflection i can instantiate a class. But how do we invoke a method of a ...
- 4,403