Check if certain string exist in my enum values - salesforce

Question

In My ENUM a list of values is added and I need to check if certain string values are in my ENUM and which is dynamically checked through a loop.

public Enum KeyValues{CaseNumber, Name, OwnerId, Id}

Need to check if keyValues contains Name

If('Name' == keyvalues--)// how to check if 'Name' is in ENUM - KeyValues)

Answer 1

You can use the values method to get all values of enum, then check name of each in loop.

Set<String> enumNames = new Set<String>();
for (KeyValues keyValue : KeyValues.values()){
    enumNames.add(keyValue.name()); 
}

if(enumNames.contains('Name')){
    // do something
}

Answer 2

If you want to check whether or not a String value corresponds to a valid field name, you should use describes to get the field map. That way you don't have to maintain all the supported values, and you can support more than 100 fields. As a bonus, it's actually case-insensitive.

Map<String, SObjectField> fields = SObjectType.Case.fields.getMap();
system.debug(fields.containsKey('CaseNumber'));
system.debug(fields.containsKey('CASENUMBER'));
system.debug(fields.containsKey('casenumber'));
system.debug(fields.containsKey('CaSeNuMbEr'));

If you want to support just a subset of all fields, use a Field Set. This approach is case-sensitive unless you build in some additional logic.

Set<String> fields = new Set<String>();
for (FieldSetMember member : SObjectType.Case.fieldsets.MyFieldSet)
{
    fields.add(member.getFieldPath());
}
system.debug(fields.contains('CaseNumber');