Class DeleteItemRequest
- All Implemented Interfaces:
SdkPojo
,ToCopyableBuilder<DeleteItemRequest.Builder,
DeleteItemRequest>
Represents the input of a DeleteItem
operation.
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Nested Class Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic DeleteItemRequest.Builder
builder()
final ConditionalOperator
This is a legacy parameter.final String
This is a legacy parameter.final String
A condition that must be satisfied in order for a conditionalDeleteItem
to succeed.final boolean
final boolean
equalsBySdkFields
(Object obj) Indicates whether some other object is "equal to" this one by SDK fields.final Map
<String, ExpectedAttributeValue> expected()
This is a legacy parameter.One or more substitution tokens for attribute names in an expression.final Map
<String, AttributeValue> One or more values that can be substituted in an expression.final <T> Optional
<T> getValueForField
(String fieldName, Class<T> clazz) Used to retrieve the value of a field from any class that extendsSdkRequest
.final boolean
For responses, this returns true if the service returned a value for the Expected property.final boolean
For responses, this returns true if the service returned a value for the ExpressionAttributeNames property.final boolean
For responses, this returns true if the service returned a value for the ExpressionAttributeValues property.final int
hashCode()
final boolean
hasKey()
For responses, this returns true if the service returned a value for the Key property.final Map
<String, AttributeValue> key()
A map of attribute names toAttributeValue
objects, representing the primary key of the item to delete.final ReturnConsumedCapacity
Returns the value of the ReturnConsumedCapacity property for this object.final String
Returns the value of the ReturnConsumedCapacity property for this object.Determines whether item collection metrics are returned.final String
Determines whether item collection metrics are returned.final ReturnValue
UseReturnValues
if you want to get the item attributes as they appeared before they were deleted.final String
UseReturnValues
if you want to get the item attributes as they appeared before they were deleted.An optional parameter that returns the item attributes for aDeleteItem
operation that failed a condition check.final String
An optional parameter that returns the item attributes for aDeleteItem
operation that failed a condition check.static Class
<? extends DeleteItemRequest.Builder> final String
The name of the table from which to delete the item.Take this object and create a builder that contains all of the current property values of this object.final String
toString()
Returns a string representation of this object.Methods inherited from class software.amazon.awssdk.awscore.AwsRequest
overrideConfiguration
Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder
copy
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Method Details
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tableName
The name of the table from which to delete the item. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
- Returns:
- The name of the table from which to delete the item. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.
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hasKey
public final boolean hasKey()For responses, this returns true if the service returned a value for the Key property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
key
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 key 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.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasKey()
method.- Returns:
- 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 key 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.
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hasExpected
public final boolean hasExpected()For responses, this returns true if the service returned a value for the Expected property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
expected
This is a legacy parameter. Use
ConditionExpression
instead. For more information, see Expected in the Amazon DynamoDB Developer Guide.Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasExpected()
method.- Returns:
- This is a legacy parameter. Use
ConditionExpression
instead. For more information, see Expected in the Amazon DynamoDB Developer Guide.
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conditionalOperator
This is a legacy parameter. Use
ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.If the service returns an enum value that is not available in the current SDK version,
conditionalOperator
will returnConditionalOperator.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromconditionalOperatorAsString()
.- Returns:
- This is a legacy parameter. Use
ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. - See Also:
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conditionalOperatorAsString
This is a legacy parameter. Use
ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide.If the service returns an enum value that is not available in the current SDK version,
conditionalOperator
will returnConditionalOperator.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromconditionalOperatorAsString()
.- Returns:
- This is a legacy parameter. Use
ConditionExpression
instead. For more information, see ConditionalOperator in the Amazon DynamoDB Developer Guide. - See Also:
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returnValues
Use
ReturnValues
if you want to get the item attributes as they appeared before they were deleted. ForDeleteItem
, 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 thanNONE
orALL_OLD
.If the service returns an enum value that is not available in the current SDK version,
returnValues
will returnReturnValue.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnValuesAsString()
.- Returns:
- Use
ReturnValues
if you want to get the item attributes as they appeared before they were deleted. ForDeleteItem
, 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 thanNONE
orALL_OLD
. -
- See Also:
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returnValuesAsString
Use
ReturnValues
if you want to get the item attributes as they appeared before they were deleted. ForDeleteItem
, 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 thanNONE
orALL_OLD
.If the service returns an enum value that is not available in the current SDK version,
returnValues
will returnReturnValue.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnValuesAsString()
.- Returns:
- Use
ReturnValues
if you want to get the item attributes as they appeared before they were deleted. ForDeleteItem
, 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 thanNONE
orALL_OLD
. -
- See Also:
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returnConsumedCapacity
Returns the value of the ReturnConsumedCapacity property for this object.If the service returns an enum value that is not available in the current SDK version,
returnConsumedCapacity
will returnReturnConsumedCapacity.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnConsumedCapacityAsString()
.- Returns:
- The value of the ReturnConsumedCapacity property for this object.
- See Also:
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returnConsumedCapacityAsString
Returns the value of the ReturnConsumedCapacity property for this object.If the service returns an enum value that is not available in the current SDK version,
returnConsumedCapacity
will returnReturnConsumedCapacity.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnConsumedCapacityAsString()
.- Returns:
- The value of the ReturnConsumedCapacity property for this object.
- See Also:
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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 toNONE
(the default), no statistics are returned.If the service returns an enum value that is not available in the current SDK version,
returnItemCollectionMetrics
will returnReturnItemCollectionMetrics.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnItemCollectionMetricsAsString()
.- Returns:
- 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 toNONE
(the default), no statistics are returned. - See Also:
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returnItemCollectionMetricsAsString
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 toNONE
(the default), no statistics are returned.If the service returns an enum value that is not available in the current SDK version,
returnItemCollectionMetrics
will returnReturnItemCollectionMetrics.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnItemCollectionMetricsAsString()
.- Returns:
- 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 toNONE
(the default), no statistics are returned. - See Also:
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conditionExpression
A condition that must be satisfied in order for a conditional
DeleteItem
to succeed.An expression can contain any of the following:
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Functions:
attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size
These function names are case-sensitive.
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Comparison operators:
= | <> | < | > | <= | >= | BETWEEN | IN
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Logical operators:
AND | OR | NOT
For more information about condition expressions, see Condition Expressions in the Amazon DynamoDB Developer Guide.
- Returns:
- A condition that must be satisfied in order for a conditional
DeleteItem
to succeed.An expression can contain any of the following:
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Functions:
attribute_exists | attribute_not_exists | attribute_type | contains | begins_with | size
These function names are case-sensitive.
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Comparison operators:
= | <> | < | > | <= | >= | BETWEEN | IN
-
Logical operators:
AND | OR | NOT
For more information about condition expressions, see Condition Expressions in the Amazon DynamoDB Developer Guide.
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hasExpressionAttributeNames
public final boolean hasExpressionAttributeNames()For responses, this returns true if the service returned a value for the ExpressionAttributeNames property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
expressionAttributeNames
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.
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To create a placeholder for repeating occurrences of an attribute name in an expression.
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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:
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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:
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#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.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasExpressionAttributeNames()
method.- Returns:
- 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.
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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:
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#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.
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hasExpressionAttributeValues
public final boolean hasExpressionAttributeValues()For responses, this returns true if the service returned a value for the ExpressionAttributeValues property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()
method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified. -
expressionAttributeValues
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.
Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.
This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the
hasExpressionAttributeValues()
method.- Returns:
- 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.
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returnValuesOnConditionCheckFailure
An optional parameter that returns the item attributes for a
DeleteItem
operation that failed a condition check.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.
If the service returns an enum value that is not available in the current SDK version,
returnValuesOnConditionCheckFailure
will returnReturnValuesOnConditionCheckFailure.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnValuesOnConditionCheckFailureAsString()
.- Returns:
- An optional parameter that returns the item attributes for a
DeleteItem
operation that failed a condition check.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.
- See Also:
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returnValuesOnConditionCheckFailureAsString
An optional parameter that returns the item attributes for a
DeleteItem
operation that failed a condition check.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.
If the service returns an enum value that is not available in the current SDK version,
returnValuesOnConditionCheckFailure
will returnReturnValuesOnConditionCheckFailure.UNKNOWN_TO_SDK_VERSION
. The raw value returned by the service is available fromreturnValuesOnConditionCheckFailureAsString()
.- Returns:
- An optional parameter that returns the item attributes for a
DeleteItem
operation that failed a condition check.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.
- See Also:
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toBuilder
Description copied from interface:ToCopyableBuilder
Take this object and create a builder that contains all of the current property values of this object.- Specified by:
toBuilder
in interfaceToCopyableBuilder<DeleteItemRequest.Builder,
DeleteItemRequest> - Specified by:
toBuilder
in classDynamoDbRequest
- Returns:
- a builder for type T
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builder
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serializableBuilderClass
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hashCode
public final int hashCode()- Overrides:
hashCode
in classAwsRequest
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equals
- Overrides:
equals
in classAwsRequest
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equalsBySdkFields
Description copied from interface:SdkPojo
Indicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in anSdkPojo
class, and is generated based on a service model.If an
SdkPojo
class does not have any inherited fields,equalsBySdkFields
andequals
are essentially the same.- Specified by:
equalsBySdkFields
in interfaceSdkPojo
- Parameters:
obj
- the object to be compared with- Returns:
- true if the other object equals to this object by sdk fields, false otherwise.
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toString
Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value. -
getValueForField
Description copied from class:SdkRequest
Used to retrieve the value of a field from any class that extendsSdkRequest
. The field name specified should match the member name from the corresponding service-2.json model specified in the codegen-resources folder for a given service. The class specifies what class to cast the returned value to. If the returned value is also a modeled class, theSdkRequest.getValueForField(String, Class)
method will again be available.- Overrides:
getValueForField
in classSdkRequest
- Parameters:
fieldName
- The name of the member to be retrieved.clazz
- The class to cast the returned object to.- Returns:
- Optional containing the casted return value
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sdkFields
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