Package software.amazon.awssdk.services.dynamodb.model

Class GlobalSecondaryIndex

    • Method Detail

      • indexName

        public final String indexName()

        The name of the global secondary index. The name must be unique among all other indexes on this table.

        Returns:
        The name of the global secondary index. The name must be unique among all other indexes on this table.

      • hasKeySchema

        public final boolean hasKeySchema()
        For responses, this returns true if the service returned a value for the KeySchema 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.

      • keySchema

        public final List<KeySchemaElement> keySchema()

        The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:

        • HASH - partition key

        • RANGE - sort key

        The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values.

        The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.

        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 hasKeySchema() method.

        Returns:
        The complete key schema for a global secondary index, which consists of one or more pairs of attribute names and key types:

        • HASH - partition key

        • RANGE - sort key

        The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB's usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values.

        The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value.

      • projection

        public final Projection projection()

        Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.

        Returns:
        Represents attributes that are copied (projected) from the table into the global secondary index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.

      • provisionedThroughput

        public final ProvisionedThroughput provisionedThroughput()

        Represents the provisioned throughput settings for the specified global secondary index.

        For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.

        Returns:
        Represents the provisioned throughput settings for the specified global secondary index.

        For current minimum and maximum provisioned throughput values, see Service, Account, and Table Quotas in the Amazon DynamoDB Developer Guide.

      • 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)