Hi, On 8/19/06, Sami Siren <[EMAIL PROTECTED]> wrote: > So far nutch has been build to deal mainly with text type documents. > There's however need also to deal with non textual object eg. images, > movies, sound which will provide content only in form of metadata (ok, > perhaps some text also about the context of object if applicable), so > the metadata names we have today are only a subset of what might be. > > I really would not want to restrict the metadata the interface can carry > to a fixed set.
But if it's an open Map, how do you index and search using that, i.e. what is the mapping between the Map keys used by a parser component and the field names in the resulting Lucene index? How do we enforce that an MPEG parser uses the same Map keys as a JPEG parser when encountering metadata with the same semantics? I'm not opposed to using a Map for truly variable metadata, like HTML <meta/> tags with unknown names, but if we want common handling for example for Dublin Core metadata, it would be better to enforce that on the interface level. BR, Jukka Zitting -- Yukatan - http://yukatan.fi/ - [EMAIL PROTECTED] Software craftsmanship, JCR consulting, and Java development ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Nutch-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nutch-developers
