• DESCRIPTION
• METHODS
  • $root=new RootNode ($config);
  • $root->registerfilters($prefilter,$postfilter)
  • $root->urlfilter
  • $root->postfilter
  • $url=$root->url;
  • $name=$root->name;

The RootNode class is used to encapsulate all of the information relevant to a RootNode of the spider.

A RootNode is a starting point for the spider. A single spider can have more than one starting point, and each starting point can have different filters associated with it, to allow fine-grained control of the gathering process.

A RootNode has a name (a unique string), a starting URL, a set of URL filters and a set of DATA filters. No filters are automatically added by this class.

Create a new rootnode. $config should be a Harvest::Config class containing at least the following data:

Url: a starting URL for the node. TemporaryDir: a temporary directory to use whilst gathering Name: a unique name for the Rootnode

Register filter chains for pre and post filtering respectively. Both arguments are Harvest::Controller::FilterManager objects (or children of that object)

Return the URL filter object associated with this rootnode.

Return the postfilter object for this rootnode

Return the list of urls of the starting point of this rootnode.

Returns the short, unique, name assigned to the rootnode.