Hi i m tryin to rescheduled already scheduled apex classes using system.schedule method.

 

When tryin to do this i m getting an error.

 

The following is my controller code

 

public with sharing class controller_dynamicScheduler {
    public String classNameToSchedule;
    public List<ApexClass> getschedulableClasses() {
        List<ApexClass> allClasses = [Select ApiVersion, Body, bodyCrc, IsValid, LengthWithoutComments, Name, NamespacePrefix, Status from ApexClass];
        List<ApexClass> schedulableClasses = new List<ApexClass>();
        for(ApexClass c : allClasses) {
            if(c.Body.containsIgnoreCase(ApexSchedulerSettings__c.getInstance('Scheduler').Schedule_Class_Keyword__c)) {
                schedulableClasses.add(c);
            }
        }
        return schedulableClasses;
    }
    
    public PageReference scheduleNow() {
        System.debug('Class Name '+classNameToSchedule);
        
        String jobName = classNameToSchedule+' - '+System.now().format();
        String schTime = System.now().addMinutes(1).format('ss mm HH dd MM ? yyyy');
        ApexClass class2Schedule = [Select Name from ApexClass Where Name=:classNameToSchedule];
         System.schedule(jobName, schTime, class2Schedule);
        return null;
    }
}

 The following is my apex page code:

 

<apex:page controller="controller_dynamicScheduler">
<apex:form >
    <apex:pageMessages />
    <apex:pageBlock mode="edit" title="Schedulable Classes">
        <apex:pageBlockTable value="{!schedulableClasses}" var="apexClass">
            <apex:column value="{!apexClass.Name}"/>
            <apex:column value="{!apexClass.ApiVersion}"/>
            <apex:column >
                <apex:commandLink value="Schedule Now">
                    <apex:param name="className" assignTo="{!classNameToSchedule}" value="{!apexClass.Name}"/>
                </apex:commandLink>
            </apex:column>
        </apex:pageBlockTable>
    </apex:pageBlock>
</apex:form>
</apex:page>

 i m getting the following error msg

 

Error: controller_dynamicScheduler Compile Error: You must select an Apex class that implements the Schedulable interface. at line 21 column 2