SE Platform Cache Structure

//wrapper class that is used in the cache
global class MenuWrapper{
    public List<FieloEE__Section__c> sections {get; set;}
    public Map<Id,List<FieloEE__Section__c>> componentsSection {get; set;}
    public Map<Id,FieloEE__Component__c> componentsMap {get; set;}
    public Set<Id> componentCacheIds;
}

//Action method
public PageReference init(){
    loadSections();
    return null;
}

private void loadSections(){
    //verifies if the cache functionality is enabled
    cacheEnabled = FieloEE__PublicSettings__c.getOrgDefaults().CacheEnabled__c;
    if(cacheEnabled != null && cacheEnabled){
        loadSectionsWithCache();
    }else{
        loadSectionsWithoutCache();
    }

}

private void loadSectionsWithoutCache(){

    //instantiate wrapper class
    menuWrapper = new MenuWrapper();

    //queries sections
    menuWrapper.sections = [SELECT Id, Name, F_PRM_Asynchronous__c, FieloEE__Type__c, FieloEE__Order__c, FieloEE__Menu__c, FieloEE__CSSClasses__c FROM FieloEE__Section__c WHERE FieloEE__Menu__c =: menu2.Id ORDER BY FieloEE__Order__c ASC NULLS FIRST,CreatedDate ASC];

    //query subsections with components related lists
    List<FieloEE__Section__c> sections = menuWrapper.sections;
    for(FieloEE__Section__c subSection : Database.query('SELECT Id, FieloEE__Type__c, FieloEE__Order__c, Name, FieloEE__Menu__c, FieloEE__Parent__c, FieloEE__CSSClasses__c, (SELECT ' + fields + ' FROM FieloEE__Components__r ORDER BY FieloEE__Order__c asc) FROM FieloEE__Section__c WHERE FieloEE__Parent__c IN : sections ORDER BY FieloEE__Order__c ASC')){
        if(!menuWrapper.componentsSection.containsKey(subSection.FieloEE__Parent__c)){
            menuWrapper.componentsSection.put(subSection.FieloEE__Parent__c, new List<FieloEE__Section__c>{subSection});
        }else{
            menuWrapper.componentsSection.get(subSection.FieloEE__Parent__c).add(subSection);
        }
        //load componentsMap
        FieloEE.PageController.componentsMap.putAll(subSection.FieloEE__Components__r);
    }

    //the componentCacheIds is null due cache is inactive
}

private void loadSectionsWithCache(){

    //Get platform cache partition
    orgPart = Cache.Org.getPartition('local.FieloMenus');

    //generates menu key
    keyString = String.valueOf(menu2.Id).subString(0,15);

    //get value from the cache for specified key
    menuWrapper = (MenuWrapper)orgPart.get(keyString);

    //checks if the key exists in the cache, if no then loads the wrapper
    if(menuWrapper == null){
        loadMenuWrapper(keyString);
    }

}

private void loadMenuWrapper(String keyString){

    //instantiates the wrapper
    menuWrapper = new MenuWrapper();

    //query sections
    menuWrapper.sections = [SELECT Id, Name, F_PRM_Asynchronous__c, FieloEE__Type__c, FieloEE__Order__c, FieloEE__Menu__c, FieloEE__CSSClasses__c FROM FieloEE__Section__c WHERE FieloEE__Menu__c =: menu2.Id];

    //query subsections
    for(FieloEE__Section__c subSection : Database.query('SELECT Id, FieloEE__Type__c, FieloEE__Order__c, Name, FieloEE__Menu__c, FieloEE__Parent__c, FieloEE__CSSClasses__c, (SELECT ' + fields + ' FROM FieloEE__Components__r ORDER BY FieloEE__Order__c asc) FROM FieloEE__Section__c WHERE FieloEE__Parent__c IN : sectionsList AND FieloEE__Parent__r.F_PRM_Asynchronous__c = false ORDER BY FieloEE__Order__c ASC')){

        //load subsections into the wrapper
        if(!menuWrapper.componentsSection.containsKey(subSection.FieloEE__Parent__c)){
            menuWrapper.componentsSection.put(subSection.FieloEE__Parent__c, new List<FieloEE__Section__c>{subSection});
        }else{
            menuWrapper.componentsSection.get(subSection.FieloEE__Parent__c).add(subSection);
        }

        //load components into the wrapper
        menuWrapper.componentsMap.putAll(subSection.FieloEE__Components__r);

        //loads in the wrapper set the component Ids that are set to be cached (content cache)
        for(FieloEE__Component__c c : subSection.FieloEE__Components__r){
            if(c.Cached__c){
                menuWrapper.componentCacheIds.add(c.Id);
            }
        }
    }

    //save the wrapper into the cache
    orgPart.put(keyString,menuWrapper);
}