Package software.amazon.awssdk.services.freetier.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 the GetFreeTierUsage API operation.

    You can use the following patterns:

    • Simple dimension values (Dimensions root operator)

    • Complex expressions with logical operators (AND, NOT, and OR root operators).

    For simple dimension values, you can set the dimension name, values, and match type for the filters that you plan to use.

    Example for simple dimension values

    You can filter to match exactly for REGION==us-east-1 OR REGION==us-west-1.

    The corresponding Expression appears like the following: { "Dimensions": { "Key": "REGION", "Values": [ "us-east-1", "us-west-1" ], "MatchOptions": ["EQUALS"] } }

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

    For complex expressions with logical operators, you can have nested expressions to use the logical operators and specify advanced filtering.

    Example for complex expressions with logical operators

    You can filter by ((REGION == us-east-1 OR REGION == us-west-1) OR (SERVICE CONTAINS AWSLambda)) AND (USAGE_TYPE !CONTAINS DataTransfer) .

    The corresponding Expression appears like the following: { "And": [ {"Or": [ {"Dimensions": { "Key": "REGION", "Values": [ "us-east-1", "us-west-1" ], "MatchOptions": ["EQUALS"] }}, {"Dimensions": { "Key": "SERVICE", "Values": ["AWSLambda"], "MatchOptions": ["CONTAINS"] } } ]}, {"Not": {"Dimensions": { "Key": "USAGE_TYPE", "Values": ["DataTransfer"], "MatchOptions": ["CONTAINS"] }}} ] }

    In the following Contents, you must specify exactly one of the following root operators.

    See Also:
    Serialized Form

    • Method Detail

      • 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 all Expressions that you specified in the array.

        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 all Expressions that you specified in the array.

      • dimensions

        public final DimensionValues dimensions()

        The specific dimension, values, and match type to filter objects with.

        Returns:
        The specific dimension, values, and match type to filter objects with.

      • not

        public final Expression not()

        Return results that don’t match the Expression that you specified.

        Returns:
        Return results that don’t match the Expression that you specified.

      • 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 any of the Expressions that you specified. in the array.

        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 any of the Expressions that you specified. in the array.

      • 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)