@Generated(value="software.amazon.awssdk:codegen") public final class MetricDataQuery extends Object implements SdkPojo, Serializable, ToCopyableBuilder<MetricDataQuery.Builder,MetricDataQuery>
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 math expression on metric data. A single
GetMetricData
call can include up to 100 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.
Modifier and Type | Class and Description |
---|---|
static interface |
MetricDataQuery.Builder |
Modifier and Type | Method and Description |
---|---|
static MetricDataQuery.Builder |
builder() |
boolean |
equals(Object obj) |
String |
expression()
The math expression to be performed on the returned data, if this object is performing a math expression.
|
<T> Optional<T> |
getValueForField(String fieldName,
Class<T> clazz) |
int |
hashCode() |
String |
id()
A short name used to tie this object to the results in the response.
|
String |
label()
A human-readable label for this metric or expression.
|
MetricStat |
metricStat()
The metric to be returned, along with statistics, period, and units.
|
Boolean |
returnData()
When used in
GetMetricData , this option indicates whether to return the timestamps and raw data
values of this metric. |
List<SdkField<?>> |
sdkFields() |
static Class<? extends MetricDataQuery.Builder> |
serializableBuilderClass() |
MetricDataQuery.Builder |
toBuilder() |
String |
toString()
Returns a string representation of this object.
|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
copy
public String id()
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.
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.public MetricStat 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.
Within one MetricDataQuery object, you must specify either Expression
or
MetricStat
but not both.
public String expression()
The math expression to be performed on the returned data, if this object is performing a math expression. This
expression can use the Id
of the other metrics 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.
Id
of the other metrics 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.
public String label()
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.
public Boolean returnData()
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.
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.
public MetricDataQuery.Builder toBuilder()
toBuilder
in interface ToCopyableBuilder<MetricDataQuery.Builder,MetricDataQuery>
public static MetricDataQuery.Builder builder()
public static Class<? extends MetricDataQuery.Builder> serializableBuilderClass()
public String toString()
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