Fedora Commons

Hello Guys,

I have recently started my development of Fedora Commons and made good progress with it.

I have few questions, I hope someone can help me with them.


1)      I have defined  custom schemas for different objects in my repository. Can we have custom attributes even for different data streams in the object.

2)      If we could can you please let me know how we can retrieve additional information (meta data) for every data stream? I mean in the API-A wsdl we have listDataStreams method but it only retrieves Label, Mimetype and filename.

Thanks,
Vamsee

Re: [Fedora-commons-users] Object Attribute Retrieval From: Steve Bayliss <stephen.bayliss@ac...> - 2010-01-12 21:19 Attachments: Message as HTML      Hi Vamsee If you use Fedora 3.3 (recently released - http://www.fedora-commons.org/software/current) and enable the resource index, you can do this - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index You can define "attributes" of a datastream (actually relationships, triples with the datastream as the subject) using RDF, in a RELS-INT datastream - see http://www.fedora-commons.org/confluence/display/FCR30/Digital+Object+Relati onships You can then query those relationships using the RISearch service - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search and for doing this as an HTTP service (GET and POST), http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search #ResourceIndexSearch-ApplicationInterface Hope that helps Regards Steve -----Original Message----- From: Vamsee Vanaparthy [mailto:vvanaparthy@...] Sent: 12 January 2010 20:55 To: fedora-commons-users@... Subject: [Fedora-commons-users] Object Attribute Retrieval Hello Guys, I have recently started my development of Fedora Commons and made good progress with it. I have few questions, I hope someone can help me with them. 1) I have defined custom schemas for different objects in my repository. Can we have custom attributes even for different data streams in the object. 2) If we could can you please let me know how we can retrieve additional information (meta data) for every data stream? I mean in the API-A wsdl we have listDataStreams method but it only retrieves Label, Mimetype and filename. Thanks, Vamsee

Re: [Fedora-commons-users] Object Attribute Retrieval From: Steve Bayliss <stephen.bayliss@ac...> - 2010-01-12 21:42 Attachments: Message as HTML      I should have also mentioned... in Fedora 3.3 the relationships methods of the API have been enhanced to allow modification of datastream relationships, so you don't have to deal with manipulating RDF directly. These methods will modify the RDF in RELS-INT for you. For SOAP, see http://www.fedora-commons.org/confluence/display/FCR30/API-M#API-M-Relations hipManagement For REST see http://www.fedora-commons.org/confluence/display/FCR30/REST+API#RESTAPI-addR elationship and http://www.fedora-commons.org/confluence/display/FCR30/REST+API#RESTAPI-purg eRelationship -----Original Message----- From: Steve Bayliss [mailto:stephen.bayliss@...] Sent: 12 January 2010 21:19 To: 'Vamsee Vanaparthy'; 'Fedora Users' Subject: Re: [Fedora-commons-users] Object Attribute Retrieval Hi Vamsee If you use Fedora 3.3 (recently released - http://www.fedora-commons.org/software/current) and enable the resource index, you can do this - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index You can define "attributes" of a datastream (actually relationships, triples with the datastream as the subject) using RDF, in a RELS-INT datastream - see http://www.fedora-commons.org/confluence/display/FCR30/Digital+Object+Relati onships You can then query those relationships using the RISearch service - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search and for doing this as an HTTP service (GET and POST), http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search #ResourceIndexSearch-ApplicationInterface Hope that helps Regards Steve -----Original Message----- From: Vamsee Vanaparthy [mailto:vvanaparthy@...] Sent: 12 January 2010 20:55 To: fedora-commons-users@... Subject: [Fedora-commons-users] Object Attribute Retrieval Hello Guys, I have recently started my development of Fedora Commons and made good progress with it. I have few questions, I hope someone can help me with them. 1) I have defined custom schemas for different objects in my repository. Can we have custom attributes even for different data streams in the object. 2) If we could can you please let me know how we can retrieve additional information (meta data) for every data stream? I mean in the API-A wsdl we have listDataStreams method but it only retrieves Label, Mimetype and filename. Thanks, Vamsee

Re: [Fedora-commons-users] Object Attribute Retrieval From: Vamsee Vanaparthy <vvanaparthy@vm...> - 2010-01-13 02:01 Thanks Steve, will look in to this stuff. ________________________________ From: Steve Bayliss [stephen.bayliss@...] Sent: Tuesday, January 12, 2010 1:41 PM To: Vamsee Vanaparthy; 'Fedora Users' Subject: RE: [Fedora-commons-users] Object Attribute Retrieval I should have also mentioned... in Fedora 3.3 the relationships methods of the API have been enhanced to allow modification of datastream relationships, so you don't have to deal with manipulating RDF directly. These methods will modify the RDF in RELS-INT for you. For SOAP, see http://www.fedora-commons.org/confluence/display/FCR30/API-M#API-M-RelationshipManagement For REST see http://www.fedora-commons.org/confluence/display/FCR30/REST+API#RESTAPI-addRelationship and http://www.fedora-commons.org/confluence/display/FCR30/REST+API#RESTAPI-purgeRelationship -----Original Message----- From: Steve Bayliss [mailto:stephen.bayliss@...] Sent: 12 January 2010 21:19 To: 'Vamsee Vanaparthy'; 'Fedora Users' Subject: Re: [Fedora-commons-users] Object Attribute Retrieval Hi Vamsee If you use Fedora 3.3 (recently released - http://www.fedora-commons.org/software/current) and enable the resource index, you can do this - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index You can define "attributes" of a datastream (actually relationships, triples with the datastream as the subject) using RDF, in a RELS-INT datastream - see http://www.fedora-commons.org/confluence/display/FCR30/Digital+Object+Relationships You can then query those relationships using the RISearch service - see http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search and for doing this as an HTTP service (GET and POST), http://www.fedora-commons.org/confluence/display/FCR30/Resource+Index+Search#ResourceIndexSearch-ApplicationInterface Hope that helps Regards Steve -----Original Message----- From: Vamsee Vanaparthy [mailto:vvanaparthy@...] Sent: 12 January 2010 20:55 To: fedora-commons-users@... Subject: [Fedora-commons-users] Object Attribute Retrieval Hello Guys, I have recently started my development of Fedora Commons and made good progress with it. I have few questions, I hope someone can help me with them. 1) I have defined custom schemas for different objects in my repository. Can we have custom attributes even for different data streams in the object. 2) If we could can you please let me know how we can retrieve additional information (meta data) for every data stream? I mean in the API-A wsdl we have listDataStreams method but it only retrieves Label, Mimetype and filename. Thanks, Vamsee

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