class Amazonite::DynamoDB::QueryOutput

Overview

Represents the output of a Query operation.

Included Modules

JSON::Serializable

Defined in:

dynamodb/query_output.cr

Constructors

.new(pull : JSON::PullParser)
.new(items : Array(Hash(String, AttributeValue)) | Nil = nil, count : Int32 | Nil = nil, scanned_count : Int32 | Nil = nil, last_evaluated_key : Hash(String, AttributeValue) | Nil = nil, consumed_capacity : ConsumedCapacity | Nil = nil)
.new(*, __pull_for_json_serializable pull : JSON::PullParser)

Instance Method Summary

#==(other : self)
Returns true if this reference is the same as other.
#consumed_capacity : ConsumedCapacity | Nil
The capacity units consumed by the Query operation.
#consumed_capacity=(consumed_capacity : ConsumedCapacity | Nil)
The capacity units consumed by the Query operation.
#count : Int32 | Nil
The number of items in the response.
#count=(count : Int32 | Nil)
The number of items in the response.
#hash(hasher)
See Object#hash(hasher)
#items : Array(Hash(String, AttributeValue)) | Nil
An array of item attributes that match the query criteria.
#items=(items : Array(Hash(String, AttributeValue)) | Nil)
An array of item attributes that match the query criteria.
#last_evaluated_key : Hash(String, AttributeValue) | Nil
The primary key of the item where the operation stopped, inclusive of the previous result set.
#last_evaluated_key=(last_evaluated_key : Hash(String, AttributeValue) | Nil)
The primary key of the item where the operation stopped, inclusive of the previous result set.
#scanned_count : Int32 | Nil
The number of items evaluated, before any QueryFilter is applied.
#scanned_count=(scanned_count : Int32 | Nil)
The number of items evaluated, before any QueryFilter is applied.
#validate! : Nil

Constructor Detail

def self.new(pull : JSON::PullParser) #

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def self.new(*, __pull_for_json_serializable pull : JSON::PullParser) #

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Instance Method Detail

def ==(other : self) #

Description copied from class Reference

Returns true if this reference is the same as other. Invokes same?.

def consumed_capacity : ConsumedCapacity | Nil #

The capacity units consumed by the Query operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation. ConsumedCapacity is only returned if the ReturnConsumedCapacity parameter was specified. For more information, see Capacity unit consumption for read operations in the Amazon DynamoDB Developer Guide.

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def consumed_capacity=(consumed_capacity : ConsumedCapacity | Nil) #

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def count : Int32 | Nil #

The number of items in the response.

If you used a QueryFilter in the request, then Count is the number of items returned after the filter was applied, and ScannedCount is the number of matching items before the filter was applied.

If you did not use a filter in the request, then Count and ScannedCount are the same.

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def count=(count : Int32 | Nil) #

The number of items in the response.

If you did not use a filter in the request, then Count and ScannedCount are the same.

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def hash(hasher) #

Description copied from class Reference

See Object#hash(hasher)

def items : Array(Hash(String, AttributeValue)) | Nil #

An array of item attributes that match the query criteria. Each element in this array consists of an attribute name and the value for that attribute.

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def items=(items : Array(Hash(String, AttributeValue)) | Nil) #

An array of item attributes that match the query criteria. Each element in this array consists of an attribute name and the value for that attribute.

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def last_evaluated_key : Hash(String, AttributeValue) | Nil #

The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.

If LastEvaluatedKey is empty, then the "last page" of results has been processed and there is no more data to be retrieved.

If LastEvaluatedKey is not empty, it does not necessarily mean that there is more data in the result set. The only way to know when you have reached the end of the result set is when LastEvaluatedKey is empty.

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def last_evaluated_key=(last_evaluated_key : Hash(String, AttributeValue) | Nil) #

The primary key of the item where the operation stopped, inclusive of the previous result set. Use this value to start a new operation, excluding this value in the new request.

If LastEvaluatedKey is empty, then the "last page" of results has been processed and there is no more data to be retrieved.

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def scanned_count : Int32 | Nil #

The number of items evaluated, before any QueryFilter is applied. A high ScannedCount value with few, or no, Count results indicates an inefficient Query operation. For more information, see Count and ScannedCount in the Amazon DynamoDB Developer Guide.

If you did not use a filter in the request, then ScannedCount is the same as Count.

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def scanned_count=(scanned_count : Int32 | Nil) #

If you did not use a filter in the request, then ScannedCount is the same as Count.

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def validate! : Nil #

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