Package software.amazon.awssdk.services.costexplorer.model

Class Expression

  • All Implemented Interfaces:
    Serializable, SdkPojo, ToCopyableBuilder<Expression.Builder,​Expression>
    @Generated("software.amazon.awssdk:codegen")
public final class Expression
extends Object
implements SdkPojo, Serializable, ToCopyableBuilder<Expression.Builder,​Expression>

    Use Expression to filter in various Cost Explorer APIs.

    Not all Expression types are supported in each API. Refer to the documentation for each specific API to see what is supported.

    There are two patterns:

    • Simple dimension values.

      • There are three types of simple dimension values: CostCategories, Tags, and Dimensions.

        • Specify the CostCategories field to define a filter that acts on Cost Categories.

        • Specify the Tags field to define a filter that acts on Cost Allocation Tags.

        • Specify the Dimensions field to define a filter that acts on the DimensionValues .

      • For each filter type, you can set the dimension name and values for the filters that you plan to use.

        • For example, you can filter for REGION==us-east-1 OR REGION==us-west-1. For GetRightsizingRecommendation, the Region is a full name (for example, REGION==US East (N. Virginia).

        • The corresponding Expression for this example is as follows: { "Dimensions": { "Key": "REGION", "Values": [ "us-east-1", "us-west-1" ] } }

        • As shown in the previous example, lists of dimension values are combined with OR when applying the filter.

      • You can also set different match options to further control how the filter behaves. Not all APIs support match options. Refer to the documentation for each specific API to see what is supported.

        • For example, you can filter for linked account names that start with "a".

        • The corresponding Expression for this example is as follows: { "Dimensions": { "Key": "LINKED_ACCOUNT_NAME", "MatchOptions": [ "STARTS_WITH" ], "Values": [ "a" ] } }

    • Compound Expression types with logical operations.

      • You can use multiple Expression types and the logical operators AND/OR/NOT to create a list of one or more Expression objects. By doing this, you can filter by more advanced options.

      • For example, you can filter by ((REGION == us-east-1 OR REGION == us-west-1) OR (TAG.Type == Type1)) AND (USAGE_TYPE != DataTransfer).

      • The corresponding Expression for this example is as follows: { "And": [ {"Or": [ {"Dimensions": { "Key": "REGION", "Values": [ "us-east-1", "us-west-1" ] }}, {"Tags": { "Key": "TagName", "Values": ["Value1"] } } ]}, {"Not": {"Dimensions": { "Key": "USAGE_TYPE", "Values": ["DataTransfer"] }}} ] }

      Because each Expression can have only one operator, the service returns an error if more than one is specified. The following example shows an Expression object that creates an error: { "And": [ ... ], "Dimensions": { "Key": "USAGE_TYPE", "Values": [ "DataTransfer" ] } }

      The following is an example of the corresponding error message: "Expression has more than one roots. Only one root operator is allowed for each expression: And, Or, Not, Dimensions, Tags, CostCategories"

    For the GetRightsizingRecommendation action, a combination of OR and NOT isn't supported. OR isn't supported between different dimensions, or dimensions and tags. NOT operators aren't supported. Dimensions are also limited to LINKED_ACCOUNT, REGION, or RIGHTSIZING_TYPE.

    For the GetReservationPurchaseRecommendation action, only NOT is supported. AND and OR aren't supported. Dimensions are limited to LINKED_ACCOUNT.

    See Also:
    Serialized Form

    • Method Detail

      • hasOr

        public final boolean hasOr()
        For responses, this returns true if the service returned a value for the Or property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() 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.

      • or

        public final List<Expression> or()

        Return results that match either Dimension object.

        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 hasOr() method.

        Returns:
        Return results that match either Dimension object.

      • hasAnd

        public final boolean hasAnd()
        For responses, this returns true if the service returned a value for the And property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() 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.

      • and

        public final List<Expression> and()

        Return results that match both Dimension objects.

        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 hasAnd() method.

        Returns:
        Return results that match both Dimension objects.

      • not

        public final Expression not()

        Return results that don't match a Dimension object.

        Returns:
        Return results that don't match a Dimension object.

      • dimensions

        public final DimensionValues dimensions()

        The specific Dimension to use for Expression.

        Returns:
        The specific Dimension to use for Expression.

      • tags

        public final TagValues tags()

        The specific Tag to use for Expression.

        Returns:
        The specific Tag to use for Expression.

      • costCategories

        public final CostCategoryValues costCategories()

        The filter that's based on CostCategory values.

        Returns:
        The filter that's based on CostCategory values.

      • hashCode

        public final int hashCode()
        Overrides:
        hashCode in class Object

      • equals

        public final boolean equals​(Object obj)
        Overrides:
        equals in class Object

      • toString

        public final String 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.
        Overrides:
        toString in class Object

      • getValueForField

        public final <T> Optional<T> getValueForField​(String fieldName,
                                              Class<T> clazz)