Struct aws_sdk_dynamodb::input::DeleteItemInput
source · #[non_exhaustive]pub struct DeleteItemInput { /* private fields */ }
Expand description
Represents the input of a DeleteItem
operation.
Implementations§
source§impl DeleteItemInput
impl DeleteItemInput
sourcepub async fn make_operation(
&self,
_config: &Config
) -> Result<Operation<DeleteItem, AwsResponseRetryClassifier>, BuildError>
pub async fn make_operation(
&self,
_config: &Config
) -> Result<Operation<DeleteItem, AwsResponseRetryClassifier>, BuildError>
Consumes the builder and constructs an Operation<DeleteItem
>
Examples found in repository?
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pub async fn customize(
self,
) -> std::result::Result<
crate::operation::customize::CustomizableOperation<
crate::operation::DeleteItem,
aws_http::retry::AwsResponseRetryClassifier,
>,
aws_smithy_http::result::SdkError<crate::error::DeleteItemError>,
> {
let handle = self.handle.clone();
let operation = self
.inner
.build()
.map_err(aws_smithy_http::result::SdkError::construction_failure)?
.make_operation(&handle.conf)
.await
.map_err(aws_smithy_http::result::SdkError::construction_failure)?;
Ok(crate::operation::customize::CustomizableOperation { handle, operation })
}
/// Sends the request and returns the response.
///
/// If an error occurs, an `SdkError` will be returned with additional details that
/// can be matched against.
///
/// By default, any retryable failures will be retried twice. Retry behavior
/// is configurable with the [RetryConfig](aws_smithy_types::retry::RetryConfig), which can be
/// set when configuring the client.
pub async fn send(
self,
) -> std::result::Result<
crate::output::DeleteItemOutput,
aws_smithy_http::result::SdkError<crate::error::DeleteItemError>,
> {
let op = self
.inner
.build()
.map_err(aws_smithy_http::result::SdkError::construction_failure)?
.make_operation(&self.handle.conf)
.await
.map_err(aws_smithy_http::result::SdkError::construction_failure)?;
self.handle.client.call(op).await
}
sourcepub fn builder() -> Builder
pub fn builder() -> Builder
Creates a new builder-style object to manufacture DeleteItemInput
.
source§impl DeleteItemInput
impl DeleteItemInput
sourcepub fn table_name(&self) -> Option<&str>
pub fn table_name(&self) -> Option<&str>
The name of the table from which to delete the item.
sourcepub fn key(&self) -> Option<&HashMap<String, AttributeValue>>
pub fn key(&self) -> Option<&HashMap<String, AttributeValue>>
A map of attribute names to AttributeValue
objects, representing the primary key of the item to delete.
For the primary key, you must provide all of the attributes. For example, with a simple primary key, you only need to provide a value for the partition key. For a composite primary key, you must provide values for both the partition key and the sort key.
sourcepub fn expected(&self) -> Option<&HashMap<String, ExpectedAttributeValue>>
pub fn expected(&self) -> Option<&HashMap<String, ExpectedAttributeValue>>
This is a legacy parameter. Use ConditionExpression
instead. For more information, see Expected in the Amazon DynamoDB Developer Guide.
sourcepub fn conditional_operator(&self) -> Option<&ConditionalOperator>
pub fn conditional_operator(&self) -> Option<&ConditionalOperator>
This is a legacy parameter. Use ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.
sourcepub fn return_values(&self) -> Option<&ReturnValue>
pub fn return_values(&self) -> Option<&ReturnValue>
Use ReturnValues
if you want to get the item attributes as they appeared before they were deleted. For DeleteItem
, the valid values are:
-
NONE
- IfReturnValues
is not specified, or if its value isNONE
, then nothing is returned. (This setting is the default forReturnValues
.) -
ALL_OLD
- The content of the old item is returned.
There is no additional cost associated with requesting a return value aside from the small network and processing overhead of receiving a larger response. No read capacity units are consumed.
The ReturnValues
parameter is used by several DynamoDB operations; however, DeleteItem
does not recognize any values other than NONE
or ALL_OLD
.
sourcepub fn return_consumed_capacity(&self) -> Option<&ReturnConsumedCapacity>
pub fn return_consumed_capacity(&self) -> Option<&ReturnConsumedCapacity>
Determines the level of detail about either provisioned or on-demand throughput consumption that is returned in the response:
-
INDEXES
- The response includes the aggregateConsumedCapacity
for the operation, together withConsumedCapacity
for each table and secondary index that was accessed.Note that some operations, such as
GetItem
andBatchGetItem
, do not access any indexes at all. In these cases, specifyingINDEXES
will only returnConsumedCapacity
information for table(s). -
TOTAL
- The response includes only the aggregateConsumedCapacity
for the operation. -
NONE
- NoConsumedCapacity
details are included in the response.
sourcepub fn return_item_collection_metrics(
&self
) -> Option<&ReturnItemCollectionMetrics>
pub fn return_item_collection_metrics(
&self
) -> Option<&ReturnItemCollectionMetrics>
Determines whether item collection metrics are returned. If set to SIZE
, the response includes statistics about item collections, if any, that were modified during the operation are returned in the response. If set to NONE
(the default), no statistics are returned.
sourcepub fn condition_expression(&self) -> Option<&str>
pub fn condition_expression(&self) -> Option<&str>
A condition that must be satisfied in order for a conditional DeleteItem
to succeed.
An expression can contain any of the following:
-
Functions:
attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size
These function names are case-sensitive.
-
Comparison operators:
= | <> | < | > | <= | >= | BETWEEN | IN
-
Logical operators:
AND | OR | NOT
For more information about condition expressions, see Condition Expressions in the Amazon DynamoDB Developer Guide.
sourcepub fn expression_attribute_names(&self) -> Option<&HashMap<String, String>>
pub fn expression_attribute_names(&self) -> Option<&HashMap<String, String>>
One or more substitution tokens for attribute names in an expression. The following are some use cases for using ExpressionAttributeNames
:
-
To access an attribute whose name conflicts with a DynamoDB reserved word.
-
To create a placeholder for repeating occurrences of an attribute name in an expression.
-
To prevent special characters in an attribute name from being misinterpreted in an expression.
Use the # character in an expression to dereference an attribute name. For example, consider the following attribute name:
-
Percentile
The name of this attribute conflicts with a reserved word, so it cannot be used directly in an expression. (For the complete list of reserved words, see Reserved Words in the Amazon DynamoDB Developer Guide). To work around this, you could specify the following for ExpressionAttributeNames
:
-
{"#P":"Percentile"}
You could then use this substitution in an expression, as in this example:
-
#P = :val
Tokens that begin with the : character are expression attribute values, which are placeholders for the actual value at runtime.
For more information on expression attribute names, see Specifying Item Attributes in the Amazon DynamoDB Developer Guide.
sourcepub fn expression_attribute_values(
&self
) -> Option<&HashMap<String, AttributeValue>>
pub fn expression_attribute_values(
&self
) -> Option<&HashMap<String, AttributeValue>>
One or more values that can be substituted in an expression.
Use the : (colon) character in an expression to dereference an attribute value. For example, suppose that you wanted to check whether the value of the ProductStatus attribute was one of the following:
Available | Backordered | Discontinued
You would first need to specify ExpressionAttributeValues
as follows:
{ ":avail":{"S":"Available"}, ":back":{"S":"Backordered"}, ":disc":{"S":"Discontinued"} }
You could then use these values in an expression, such as this:
ProductStatus IN (:avail, :back, :disc)
For more information on expression attribute values, see Condition Expressions in the Amazon DynamoDB Developer Guide.
Trait Implementations§
source§impl Clone for DeleteItemInput
impl Clone for DeleteItemInput
source§fn clone(&self) -> DeleteItemInput
fn clone(&self) -> DeleteItemInput
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more