package gw.webservice

class LazyUpdater<ParentType, DependentType> {
  var _parent: ParentType as ParentComponent
  var _dependent: DependentType as DependentComponent
  
  construct(initialParent: ParentType) {
    _parent = initialParent
  }
  
  function refresh(currentParent: ParentType, getChildren(parent: ParentType): DependentType): boolean{
    if(_parent != currentParent){
      _parent = currentParent
      _dependent = getChildren(currentParent)
    }
    return true
  }
}