Objects

Objects are the fundamental entities stored in Amazon S3. Objects consist of object data and metadata. The data portion is opaque to Amazon S3. The metadata is a set of name-value pairs that describe the object.

A key is the unique identifier for an object within a bucket. Every object in a bucket has exactly one key. Since a bucket and key together uniquely identify each object, Amazon S3 can be thought of as a basic data map between "bucket + key" and the object itself.

Jollat displays keys (and objects identified by them) in a hierarchical tree. Keys are split up among delimiters and ones with a common prefix are grouped together.

Uploading an object

1. Select the bucket you wish to upload into.
2. Select the destination in the key tree.
3. Select File > Upload object or drag a file/folder from your computer to the destination. In case of a folder, its name and the names' of the subfolders in it will be added to the uploaded objects' name separated by the delimiter specified for the bucket.

Downloading an object

1. Select the bucket you wish to download from.
2. Select the object(s) you wish to download. You may select any node in the key tree, folders will be created for sub-nodes if necessary.
3. Select File > Download object or drag the object(s) (Mac version only) from the key tree to the destination on your computer.

Deleting an object

1. Select the bucket you wish to delete from.
2. Select the object(s) you wish to delete. You may select any node in the key tree.
3. Right click (ctrl-click on the Mac) on the object(s) and select Delete from the context menu.

Every object has an access control policy, which determines the rights of others to access it.

Changing an object's access control policy

1. Select the bucket holding the object(s) you wish to change.
2. Select the object(s) from the key list you wish to change.
3. Wait for the rules to be downloaded and merged.
4. Select the Access Policy tab.
5. To add a user based rule click the Add button, select Add User Policy, enter the user's canonical user ID and click Add.
6. To add a group based rule click the Add button, select Add Group Policy, select the group and click Add.
7. To remove a user or group based rule click the Remove button.
8. Check or uncheck the privileges you wish to allow or deny. To leave certain privileges unchanged for multiple objects, make sure their checkbox is set to multiple choice state.
9. Click Apply to save the changes.

Changing the delimiter for a bucket

1. Select the bucket.
2. Change the delimiter under the key tree.