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Subject [Cocoon Wiki] Updated: GettingStartedWithCocoonAndHibernate
Date Wed, 17 Nov 2004 06:53:39 GMT
   Date: 2004-11-16T22:53:39
   Editor: DerekLastname <>
   Wiki: Cocoon Wiki
   Page: GettingStartedWithCocoonAndHibernate

   no comment

Change Log:

@@ -194,9 +194,9 @@
 Now suppose you have five Articles in your database, say A,B,C,D,E. A links to B and D while
B links to C and D links to E. If you use hibebernate to fetch Article A from the database,
it will also fetch ''all other Articles,'' since you could theoretically navigate to all of
them using getter methods, i.e. you could reference Article E by typing: 
-Article E = A.getRelatedArticles().get(1).getRelatedArticles().get(0); 
+{{{ Article E = A.getRelatedArticles().get(1).getRelatedArticles().get(0); }}}
 This can be useful if you know that you are going to use all or most articles anyway. But
in almost every case where you do not need to access your entire database at once (which is
almost every use case I could imagine) it will be useless and lead to dramatic performance
 The solution is called Lazy Collection Initialization. This Hibernate feature basically leaves
all elements in Lists, Maps and other collections uninitialized until the element is actually
accessed via {{get()}} or similar  methods. To turn it on, simply set the attribute "lazy"
of the respective collection to "true": 

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