
# Generated by default/object.tt
package Paws::CloudWatchLogs::MetricTransformation;
  use Moose;
  has DefaultValue => (is => 'ro', isa => 'Num', request_name => 'defaultValue', traits => ['NameInRequest']);
  has Dimensions => (is => 'ro', isa => 'Paws::CloudWatchLogs::Dimensions', request_name => 'dimensions', traits => ['NameInRequest']);
  has MetricName => (is => 'ro', isa => 'Str', request_name => 'metricName', traits => ['NameInRequest'], required => 1);
  has MetricNamespace => (is => 'ro', isa => 'Str', request_name => 'metricNamespace', traits => ['NameInRequest'], required => 1);
  has MetricValue => (is => 'ro', isa => 'Str', request_name => 'metricValue', traits => ['NameInRequest'], required => 1);
  has Unit => (is => 'ro', isa => 'Str', request_name => 'unit', traits => ['NameInRequest']);

1;

### main pod documentation begin ###

=head1 NAME

Paws::CloudWatchLogs::MetricTransformation

=head1 USAGE

This class represents one of two things:

=head3 Arguments in a call to a service

Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. 
Each attribute should be used as a named argument in the calls that expect this type of object.

As an example, if Att1 is expected to be a Paws::CloudWatchLogs::MetricTransformation object:

  $service_obj->Method(Att1 => { DefaultValue => $value, ..., Unit => $value  });

=head3 Results returned from an API call

Use accessors for each attribute. If Att1 is expected to be an Paws::CloudWatchLogs::MetricTransformation object:

  $result = $service_obj->Method(...);
  $result->Att1->DefaultValue

=head1 DESCRIPTION

Indicates how to transform ingested log events to metric data in a
CloudWatch metric.

=head1 ATTRIBUTES


=head2 DefaultValue => Num

(Optional) The value to emit when a filter pattern does not match a log
event. This value can be null.


=head2 Dimensions => L<Paws::CloudWatchLogs::Dimensions>

The fields to use as dimensions for the metric. One metric filter can
include as many as three dimensions.

Metrics extracted from log events are charged as custom metrics. To
prevent unexpected high charges, do not specify high-cardinality fields
such as C<IPAddress> or C<requestID> as dimensions. Each different
value found for a dimension is treated as a separate metric and accrues
charges as a separate custom metric.

To help prevent accidental high charges, Amazon disables a metric
filter if it generates 1000 different name/value pairs for the
dimensions that you have specified within a certain amount of time.

You can also set up a billing alarm to alert you if your charges are
higher than expected. For more information, see Creating a Billing
Alarm to Monitor Your Estimated AWS Charges
(https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/monitor_estimated_charges_with_cloudwatch.html).


=head2 B<REQUIRED> MetricName => Str

The name of the CloudWatch metric.


=head2 B<REQUIRED> MetricNamespace => Str

A custom namespace to contain your metric in CloudWatch. Use namespaces
to group together metrics that are similar. For more information, see
Namespaces
(https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/cloudwatch_concepts.html#Namespace).


=head2 B<REQUIRED> MetricValue => Str

The value to publish to the CloudWatch metric when a filter pattern
matches a log event.


=head2 Unit => Str

The unit to assign to the metric. If you omit this, the unit is set as
C<None>.


=head1 SEE ALSO

This class forms part of L<Paws>, describing an object used in L<Paws::CloudWatchLogs>

=head1 BUGS and CONTRIBUTIONS

The source code is located here: L<https://github.com/pplu/aws-sdk-perl>

Please report bugs to: L<https://github.com/pplu/aws-sdk-perl/issues>

=cut