[appengine-java] Re: Query BlobInfo in Java?
Just enable billing and set a minimal amount per day. I think it's 1 or 2 dollar. It won't charge you unless you run out of free quota, and if it charges you the max you can be charged is capped. On Sep 6, 5:39 pm, Gladys Anne Nicdao ganic...@gmail.com wrote: Hi! Are you using a billable account in appengine? I'm wondering if I can use the blobstore service even with a free account. If not, are there other alternatives for blobstore so that I can upload and retrieve a file? Thanks On Tue, Sep 7, 2010 at 2:57 AM, Peter Liu tinyee...@gmail.com wrote: Just what I needed. Thank you. On Sep 6, 1:38 am, Sergio Lopes slo...@gmail.com wrote: I'm using the Datastore API to query __BlobInfo__ entity directly. In my case, for example, I can have multiple versions of the same filename but I need to get the last one. So: Query query = new Query(__BlobInfo__); query.addFilter(filename, FilterOperator.EQUAL, filename); query.addSort(creation, SortDirection.DESCENDING); DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); PreparedQuery pq = datastore.prepare(query); ListEntity entList = pq.asList(FetchOptions.Builder.withLimit(1)); Hope that helps... On 6 set, 05:13, Peter Liu tinyee...@gmail.com wrote: Hi all, Anyone know a simple way to query BlobInfo? Simple use case will be query the BlobInfo that has a specific file name. It seems there's a method to query BlobInfo for Python but I can't find it for java. Thanks! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Query BlobInfo in Java?
I'm using the Datastore API to query __BlobInfo__ entity directly. In my case, for example, I can have multiple versions of the same filename but I need to get the last one. So: Query query = new Query(__BlobInfo__); query.addFilter(filename, FilterOperator.EQUAL, filename); query.addSort(creation, SortDirection.DESCENDING); DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); PreparedQuery pq = datastore.prepare(query); ListEntity entList = pq.asList(FetchOptions.Builder.withLimit(1)); Hope that helps... On 6 set, 05:13, Peter Liu tinyee...@gmail.com wrote: Hi all, Anyone know a simple way to query BlobInfo? Simple use case will be query the BlobInfo that has a specific file name. It seems there's a method to query BlobInfo for Python but I can't find it for java. Thanks! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Query BlobInfo in Java?
Just what I needed. Thank you. On Sep 6, 1:38 am, Sergio Lopes slo...@gmail.com wrote: I'm using the Datastore API to query __BlobInfo__ entity directly. In my case, for example, I can have multiple versions of the same filename but I need to get the last one. So: Query query = new Query(__BlobInfo__); query.addFilter(filename, FilterOperator.EQUAL, filename); query.addSort(creation, SortDirection.DESCENDING); DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); PreparedQuery pq = datastore.prepare(query); ListEntity entList = pq.asList(FetchOptions.Builder.withLimit(1)); Hope that helps... On 6 set, 05:13, Peter Liu tinyee...@gmail.com wrote: Hi all, Anyone know a simple way to query BlobInfo? Simple use case will be query the BlobInfo that has a specific file name. It seems there's a method to query BlobInfo for Python but I can't find it for java. Thanks! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
Re: [appengine-java] Re: Query BlobInfo in Java?
Hi! Are you using a billable account in appengine? I'm wondering if I can use the blobstore service even with a free account. If not, are there other alternatives for blobstore so that I can upload and retrieve a file? Thanks On Tue, Sep 7, 2010 at 2:57 AM, Peter Liu tinyee...@gmail.com wrote: Just what I needed. Thank you. On Sep 6, 1:38 am, Sergio Lopes slo...@gmail.com wrote: I'm using the Datastore API to query __BlobInfo__ entity directly. In my case, for example, I can have multiple versions of the same filename but I need to get the last one. So: Query query = new Query(__BlobInfo__); query.addFilter(filename, FilterOperator.EQUAL, filename); query.addSort(creation, SortDirection.DESCENDING); DatastoreService datastore = DatastoreServiceFactory.getDatastoreService(); PreparedQuery pq = datastore.prepare(query); ListEntity entList = pq.asList(FetchOptions.Builder.withLimit(1)); Hope that helps... On 6 set, 05:13, Peter Liu tinyee...@gmail.com wrote: Hi all, Anyone know a simple way to query BlobInfo? Simple use case will be query the BlobInfo that has a specific file name. It seems there's a method to query BlobInfo for Python but I can't find it for java. Thanks! -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
