IUserFilterProvider2の実装例

global class ContactOpportunityRelatedAccount implements IUserFilterProvider2 {
     
    global UserFilter getUserFilter(string objectName, Map<String,Object> context){
        if (objectName != 'Opportunity'){
            return null;
        }
        //In this sample's case if context is empty we set behavior same as not filter.
        if(context.isEmpty()){
            return null;
        }
        //Get your customer parameters from context.
        String contactID = context.get('ContactID').toString();
        List<Contact> contactList = [SELECT Id, AccountId FROM Contact WHERE Id = :contactID Limit 1];
        Contact contact = contactList.get(0);
        UserFilter result = new UserFilter();
        //Use your customer parametes in our UserFilter.
    //Block opportunity records which without related to any Account.
        if(String.isEmpty(contact.AccountId)){
            result.whereClause = 'Id = :userArg1';
        }else{
            result.whereClause = 'AccountId = :userArg1';
        }
        result.userArg1 = contact.AccountId; 
        return result;
    }
}