Network.AWS.SimpleDB

The createDomain operation creates a new domain. The domain name must be unique among the domains associated with the Access Key ID provided in the request. The createDomain operation might take 10 or more seconds to complete.

deleteDomain :: AWSConnection -> DomainName -> IO ()

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The deleteDomain operation deletes a domain. Any items (and their attributes) in the domain are deleted as well. The deleteDomain operation might take 10 or more seconds to complete.

listDomains :: AWSConnection -> IO [DomainName]

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The listDomains operation lists all domains associated with the Access Key ID.

getAttributes :: AWSConnection -> DomainName -> ItemName -> [AttributeKey] -> IO Item

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Returns all of the attributes associated with the item. Optionally, the attributes returned can be limited to one or more specified attribute name parameters. If the item does not exist on the replica that was accessed for this operation, an empty set is returned. The system does not return an error as it cannot guarantee the item does not exist on other replicas.

putAttributes :: AWSConnection -> DomainName -> Item -> IO ()

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The putAttributes operation creates or replaces attributes in an item. 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 name and value are the same. See also putAttributes'.

putAttributes'

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:: AWSConnection
-> DomainName
-> Item
-> [AttributeKey]	Keys for the attributes that should be replaced.
-> IO ()
The `putAttributes` operation creates or replaces attributes in an item. 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 name and value are the same. This command differs from `putAttributes` by taking a list of attribute keys that are to be replaced instead of appended.

batchPutAttributes :: AWSConnection -> DomainName -> [Item] -> IO ()

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With the batchPutAttributes operation, you can perform multiple putAttribute operations in a single call. This helps you yield savings in round trips and latencies, and enables Amazon SimpleDB to optimize requests, which generally yields better throughput.

See also putAttributes'.

deleteAttributes :: AWSConnection -> DomainName -> Item -> IO ()

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Deletes one or more attributes associated with the item. If all attributes of an item are deleted, the item is deleted.

select :: AWSConnection -> SelectExpression -> IO [Item]

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The select operation returns a set of Attributes for ItemNames that match the select expression. select is similar to the standard SQL SELECT statement. The total size of the response cannot exceed 1 MB in total size. Amazon SimpleDB automatically adjusts the number of items returned per page to enforce this limit. For example, even if you ask to retrieve 2500 items, but each individual item is 10 kB in size, the system returns 100 items and an appropriate next token so you can get the next page of results.

Constants

defaultAmazonSimpleDBHost :: String

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Hostname used for connecting to Amazon's production SimpleDB service (sdb.amazonaws.com).

defaultAmazonSimpleDBPort :: Int

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Port number used for connecting to Amazon's production SimpleDB service (80).

Function Types

amazonSimpleDBConnection

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:: String	Access Key ID
-> String	Secret Access Key
-> AWSConnection	Connection to Amazon S3
Create an AWSConnection to Amazon from credentials. Uses the production service.

amazonConnectionFromEnv :: IO (Maybe AWSConnection)

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Retrieve Access and Secret keys from environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, respectively. Either variable being undefined or empty will result in Nothing.

amazonConnectionFromEnv' :: IO AWSConnection

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Retrieve Access and Secret keys from environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY, respectively. Either variable being undefined or empty will result in an exception.

Data Types

data AWSConnection

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An Amazon Web Services connection. Everything needed to connect and authenticate requests.

Constructors

AWSConnection

awsHost :: String	Service provider hostname
awsPort :: Int	Service provider port number
awsAccessKey :: String	Access Key ID
awsSecretKey :: String	Secret Access Key

Instances

Show AWSConnection

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