topic Re: References, Predicates, Nodes and the like in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/references-predicates-nodes-and-the-like/m-p/227114#M180244 <HTML><HEAD></HEAD><BODY><SPAN>A predicate is a group of references.</SPAN><BR /><BR /><SPAN>A reference is available only in the Web Services API and it is a node reference that you can instance using a UUID or a Path, that's why you have some optional arguments in the constructor of the Reference object.</SPAN><BR /><BR /><SPAN>A node is a node reference, but using Web Services API you will work only using references and/or a predicate to invoke methods, because it is useful to use a predicate of nodes.</SPAN><BR /><BR /><BLOCKQUOTE class="jive-quote">I do further not really understand why certain methods can handle predicates and other "just" references. Why - for example - can't I specify a single reference when creating an association from document A to document B. It wants a Predicate there.</BLOCKQUOTE><SPAN>Yes, because in this way you can associate one or many nodes to that parent node.</SPAN><BR /><BR /><SPAN>Hope this helps.</SPAN></BODY></HTML> Fri, 19 Mar 2010 14:58:13 GMT openpj 2010-03-19T14:58:13Z References, Predicates, Nodes and the like https://connect.hyland.com/t5/alfresco-archive/references-predicates-nodes-and-the-like/m-p/227113#M180243 Hi,while struggling with the API I do encounter a lot of different objects/classes that basically seem to be very similar (or invented for similar reasons). There is for example:ReferencePredicateNodeI looked at http://wiki.alfresco.com/wiki/Web_Service_Data_Types and all I interpret from that is th Tue, 16 Mar 2010 12:51:16 GMT https://connect.hyland.com/t5/alfresco-archive/references-predicates-nodes-and-the-like/m-p/227113#M180243 mwildam 2010-03-16T12:51:16Z Re: References, Predicates, Nodes and the like https://connect.hyland.com/t5/alfresco-archive/references-predicates-nodes-and-the-like/m-p/227114#M180244 <HTML><HEAD></HEAD><BODY><SPAN>A predicate is a group of references.</SPAN><BR /><BR /><SPAN>A reference is available only in the Web Services API and it is a node reference that you can instance using a UUID or a Path, that's why you have some optional arguments in the constructor of the Reference object.</SPAN><BR /><BR /><SPAN>A node is a node reference, but using Web Services API you will work only using references and/or a predicate to invoke methods, because it is useful to use a predicate of nodes.</SPAN><BR /><BR /><BLOCKQUOTE class="jive-quote">I do further not really understand why certain methods can handle predicates and other "just" references. Why - for example - can't I specify a single reference when creating an association from document A to document B. It wants a Predicate there.</BLOCKQUOTE><SPAN>Yes, because in this way you can associate one or many nodes to that parent node.</SPAN><BR /><BR /><SPAN>Hope this helps.</SPAN></BODY></HTML> Fri, 19 Mar 2010 14:58:13 GMT https://connect.hyland.com/t5/alfresco-archive/references-predicates-nodes-and-the-like/m-p/227114#M180244 openpj 2010-03-19T14:58:13Z