Class AggregateOperation
- All Implemented Interfaces:
Serializable,SdkPojo,ToCopyableBuilder<AggregateOperation.Builder,AggregateOperation>
A transform operation that groups rows by specified columns and applies aggregation functions to calculate summary values.
- See Also:
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Nested Class Summary
Nested Classes -
Method Summary
Modifier and TypeMethodDescriptionfinal List<Aggregation> The list of aggregation functions to apply to the grouped data, such asSUM,COUNT, orAVERAGE.final Stringalias()Alias for this operation.static AggregateOperation.Builderbuilder()final booleanfinal booleanequalsBySdkFields(Object obj) Indicates whether some other object is "equal to" this one by SDK fields.final <T> Optional<T> getValueForField(String fieldName, Class<T> clazz) The list of column names to group by when performing the aggregation.final booleanFor responses, this returns true if the service returned a value for the Aggregations property.final booleanFor responses, this returns true if the service returned a value for the GroupByColumnNames property.final inthashCode()static Class<? extends AggregateOperation.Builder> final TransformOperationSourcesource()The source transform operation that provides input data for the aggregation.Take this object and create a builder that contains all of the current property values of this object.final StringtoString()Returns a string representation of this object.Methods inherited from interface software.amazon.awssdk.utils.builder.ToCopyableBuilder
copy
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Method Details
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alias
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source
The source transform operation that provides input data for the aggregation.
- Returns:
- The source transform operation that provides input data for the aggregation.
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hasGroupByColumnNames
public final boolean hasGroupByColumnNames()For responses, this returns true if the service returned a value for the GroupByColumnNames property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()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. -
groupByColumnNames
The list of column names to group by when performing the aggregation. Rows with the same values in these columns will be grouped together.
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
hasGroupByColumnNames()method.- Returns:
- The list of column names to group by when performing the aggregation. Rows with the same values in these columns will be grouped together.
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hasAggregations
public final boolean hasAggregations()For responses, this returns true if the service returned a value for the Aggregations property. This DOES NOT check that the value is non-empty (for which, you should check theisEmpty()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. -
aggregations
The list of aggregation functions to apply to the grouped data, such as
SUM,COUNT, orAVERAGE.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
hasAggregations()method.- Returns:
- The list of aggregation functions to apply to the grouped data, such as
SUM,COUNT, orAVERAGE.
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toBuilder
Description copied from interface:ToCopyableBuilderTake this object and create a builder that contains all of the current property values of this object.- Specified by:
toBuilderin interfaceToCopyableBuilder<AggregateOperation.Builder,AggregateOperation> - Returns:
- a builder for type T
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builder
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serializableBuilderClass
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hashCode
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equals
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equalsBySdkFields
Description copied from interface:SdkPojoIndicates whether some other object is "equal to" this one by SDK fields. An SDK field is a modeled, non-inherited field in anSdkPojoclass, and is generated based on a service model.If an
SdkPojoclass does not have any inherited fields,equalsBySdkFieldsandequalsare essentially the same.- Specified by:
equalsBySdkFieldsin interfaceSdkPojo- Parameters:
obj- the object to be compared with- Returns:
- true if the other object equals to this object by sdk fields, false otherwise.
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toString
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getValueForField
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sdkFields
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sdkFieldNameToField
- Specified by:
sdkFieldNameToFieldin interfaceSdkPojo- Returns:
- The mapping between the field name and its corresponding field.
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