Copyright | (c) 2013-2018 Brendan Hay |
---|---|
License | Mozilla Public License, v. 2.0. |
Maintainer | Brendan Hay <brendan.g.hay+amazonka@gmail.com> |
Stability | auto-generated |
Portability | non-portable (GHC extensions) |
Safe Haskell | None |
Language | Haskell2010 |
The PutAttributes operation creates or replaces attributes in an item. The client may specify new attributes using a combination of the Attribute.X.Name
and Attribute.X.Value
parameters. The client specifies the first attribute by the parameters Attribute.0.Name
and Attribute.0.Value
, the second attribute by the parameters Attribute.1.Name
and Attribute.1.Value
, and so on.
Attributes are uniquely identified in an item by their name/value combination. For example, a single item can have the attributes { "first_name", "first_value" }
and { "first_name", second_value" }
. However, it cannot have two attribute instances where both the Attribute.X.Name
and Attribute.X.Value
are the same.
Optionally, the requestor can supply the Replace
parameter for each individual attribute. Setting this value to true
causes the new attribute value to replace the existing attribute value(s). For example, if an item has the attributes {
, a
, '1' }{
and b
, '2'}{
and the requestor calls b
, '3' }PutAttributes
using the attributes {
with the b
, '4' }Replace
parameter set to true, the final attributes of the item are changed to {
and a
, '1' }{
, which replaces the previous values of the b
, '4' }b
attribute with the new value.
You cannot specify an empty string as an attribute name.
Because Amazon SimpleDB makes multiple copies of client data and uses an eventual consistency update model, an immediate GetAttributes
or Select
operation (read) immediately after a PutAttributes
or DeleteAttributes
operation (write) might not return the updated data.
The following limitations are enforced for this operation: * 256 total attribute name-value pairs per item * One billion attributes per domain * 10 GB of total user data storage per domain
- putAttributes :: Text -> Text -> PutAttributes
- data PutAttributes
- paExpected :: Lens' PutAttributes (Maybe UpdateCondition)
- paDomainName :: Lens' PutAttributes Text
- paItemName :: Lens' PutAttributes Text
- paAttributes :: Lens' PutAttributes [ReplaceableAttribute]
- putAttributesResponse :: PutAttributesResponse
- data PutAttributesResponse
Creating a Request
Creates a value of PutAttributes
with the minimum fields required to make a request.
Use one of the following lenses to modify other fields as desired:
paExpected
- The update condition which, if specified, determines whether the specified attributes will be updated or not. The update condition must be satisfied in order for this request to be processed and the attributes to be updated.paDomainName
- The name of the domain in which to perform the operation.paItemName
- The name of the item.paAttributes
- The list of attributes.
data PutAttributes Source #
See: putAttributes
smart constructor.
Request Lenses
paExpected :: Lens' PutAttributes (Maybe UpdateCondition) Source #
The update condition which, if specified, determines whether the specified attributes will be updated or not. The update condition must be satisfied in order for this request to be processed and the attributes to be updated.
paDomainName :: Lens' PutAttributes Text Source #
The name of the domain in which to perform the operation.
paItemName :: Lens' PutAttributes Text Source #
The name of the item.
paAttributes :: Lens' PutAttributes [ReplaceableAttribute] Source #
The list of attributes.
Destructuring the Response
putAttributesResponse :: PutAttributesResponse Source #
Creates a value of PutAttributesResponse
with the minimum fields required to make a request.
data PutAttributesResponse Source #
See: putAttributesResponse
smart constructor.