Struct aws_sdk_cloudwatch::model::MetricDataQuery

#[non_exhaustive]
pub struct MetricDataQuery { /* private fields */ }

This structure is used in both GetMetricData and PutMetricAlarm. The supported use of this structure is different for those two operations.

When used in GetMetricData, it indicates the metric data to return, and whether this call is just retrieving a batch set of data for one metric, or is performing a Metrics Insights query or a math expression. A single GetMetricData call can include up to 500 MetricDataQuery structures.

When used in PutMetricAlarm, it enables you to create an alarm based on a metric math expression. Each MetricDataQuery in the array specifies either a metric to retrieve, or a math expression to be performed on retrieved metrics. A single PutMetricAlarm call can include up to 20 MetricDataQuery structures in the array. The 20 structures can include as many as 10 structures that contain a MetricStat parameter to retrieve a metric, and as many as 10 structures that contain the Expression parameter to perform a math expression. Of those Expression structures, one must have True as the value for ReturnData. The result of this expression is the value the alarm watches.

Any expression used in a PutMetricAlarm operation must return a single time series. For more information, see Metric Math Syntax and Functions in the Amazon CloudWatch User Guide.

Some of the parameters of this structure also have different uses whether you are using this structure in a GetMetricData operation or a PutMetricAlarm operation. These differences are explained in the following parameter list.

Implementations

impl MetricDataQuery

pub fn id(&self) -> Option<&str>

A short name used to tie this object to the results in the response. This name must be unique within a single call to GetMetricData. If you are performing math expressions on this set of data, this name represents that data and can serve as a variable in the mathematical expression. The valid characters are letters, numbers, and underscore. The first character must be a lowercase letter.

pub fn metric_stat(&self) -> Option<&MetricStat>

The metric to be returned, along with statistics, period, and units. Use this parameter only if this object is retrieving a metric and not performing a math expression on returned data.

Within one MetricDataQuery object, you must specify either Expression or MetricStat but not both.

pub fn expression(&self) -> Option<&str>

This field can contain either a Metrics Insights query, or a metric math expression to be performed on the returned data. For more information about Metrics Insights queries, see Metrics Insights query components and syntax in the Amazon CloudWatch User Guide.

A math expression can use the Id of the other metrics or queries to refer to those metrics, and can also use the Id of other expressions to use the result of those expressions. For more information about metric math expressions, see Metric Math Syntax and Functions in the Amazon CloudWatch User Guide.

Within each MetricDataQuery object, you must specify either Expression or MetricStat but not both.

pub fn label(&self) -> Option<&str>

A human-readable label for this metric or expression. This is especially useful if this is an expression, so that you know what the value represents. If the metric or expression is shown in a CloudWatch dashboard widget, the label is shown. If Label is omitted, CloudWatch generates a default.

You can put dynamic expressions into a label, so that it is more descriptive. For more information, see Using Dynamic Labels.

pub fn return_data(&self) -> Option<bool>

When used in GetMetricData, this option indicates whether to return the timestamps and raw data values of this metric. If you are performing this call just to do math expressions and do not also need the raw data returned, you can specify False. If you omit this, the default of True is used.

When used in PutMetricAlarm, specify True for the one expression result to use as the alarm. For all other metrics and expressions in the same PutMetricAlarm operation, specify ReturnData as False.

pub fn period(&self) -> Option<i32>

The granularity, in seconds, of the returned data points. For metrics with regular resolution, a period can be as short as one minute (60 seconds) and must be a multiple of 60. For high-resolution metrics that are collected at intervals of less than one minute, the period can be 1, 5, 10, 30, 60, or any multiple of 60. High-resolution metrics are those metrics stored by a PutMetricData operation that includes a StorageResolution of 1 second.

pub fn account_id(&self) -> Option<&str>

The ID of the account where the metrics are located, if this is a cross-account alarm.

Use this field only for PutMetricAlarm operations. It is not used in GetMetricData operations.

impl MetricDataQuery

pub fn builder() -> Builder

Creates a new builder-style object to manufacture MetricDataQuery.

Examples found in repository

src/xml_deser.rs (line 4587)

pub fn deser_structure_crate_model_metric_data_query(
    decoder: &mut aws_smithy_xml::decode::ScopedDecoder,
) -> Result<crate::model::MetricDataQuery, aws_smithy_xml::decode::XmlDecodeError> {
    #[allow(unused_mut)]
    let mut builder = crate::model::MetricDataQuery::builder();
    while let Some(mut tag) = decoder.next_tag() {
        match tag.start_el() {
            s if s.matches("Id") /* Id com.amazonaws.cloudwatch#MetricDataQuery$Id */ =>  {
                let var_199 =
                    Some(
                        Result::<std::string::String, aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_id(var_199);
            }
            ,
            s if s.matches("MetricStat") /* MetricStat com.amazonaws.cloudwatch#MetricDataQuery$MetricStat */ =>  {
                let var_200 =
                    Some(
                        crate::xml_deser::deser_structure_crate_model_metric_stat(&mut tag)
                        ?
                    )
                ;
                builder = builder.set_metric_stat(var_200);
            }
            ,
            s if s.matches("Expression") /* Expression com.amazonaws.cloudwatch#MetricDataQuery$Expression */ =>  {
                let var_201 =
                    Some(
                        Result::<std::string::String, aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_expression(var_201);
            }
            ,
            s if s.matches("Label") /* Label com.amazonaws.cloudwatch#MetricDataQuery$Label */ =>  {
                let var_202 =
                    Some(
                        Result::<std::string::String, aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_label(var_202);
            }
            ,
            s if s.matches("ReturnData") /* ReturnData com.amazonaws.cloudwatch#MetricDataQuery$ReturnData */ =>  {
                let var_203 =
                    Some(
                         {
                            <bool as aws_smithy_types::primitive::Parse>::parse_smithy_primitive(
                                aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            )
                            .map_err(|_|aws_smithy_xml::decode::XmlDecodeError::custom("expected (boolean: `com.amazonaws.cloudwatch#ReturnData`)"))
                        }
                        ?
                    )
                ;
                builder = builder.set_return_data(var_203);
            }
            ,
            s if s.matches("Period") /* Period com.amazonaws.cloudwatch#MetricDataQuery$Period */ =>  {
                let var_204 =
                    Some(
                         {
                            <i32 as aws_smithy_types::primitive::Parse>::parse_smithy_primitive(
                                aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            )
                            .map_err(|_|aws_smithy_xml::decode::XmlDecodeError::custom("expected (integer: `com.amazonaws.cloudwatch#Period`)"))
                        }
                        ?
                    )
                ;
                builder = builder.set_period(var_204);
            }
            ,
            s if s.matches("AccountId") /* AccountId com.amazonaws.cloudwatch#MetricDataQuery$AccountId */ =>  {
                let var_205 =
                    Some(
                        Result::<std::string::String, aws_smithy_xml::decode::XmlDecodeError>::Ok(
                            aws_smithy_xml::decode::try_data(&mut tag)?.as_ref()
                            .into()
                        )
                        ?
                    )
                ;
                builder = builder.set_account_id(var_205);
            }
            ,
            _ => {}
        }
    }
    Ok(builder.build())
}

Trait Implementations

impl Clone for MetricDataQuery

fn clone(&self) -> MetricDataQuery

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetricDataQuery

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<MetricDataQuery> for MetricDataQuery

fn eq(&self, other: &MetricDataQuery) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MetricDataQuery