pub struct Builder { /* private fields */ }
Expand description

A builder for KeySchemaElement.

Implementations§

The name of a key attribute.

The name of a key attribute.

Examples found in repository?
src/json_deser.rs (lines 10027-10033)
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pub(crate) fn deser_structure_crate_model_key_schema_element<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::KeySchemaElement>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::key_schema_element::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "AttributeName" => {
                                builder = builder.set_attribute_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KeyType" => {
                                builder = builder.set_key_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::KeyType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

The role that this key attribute will assume:

  • 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.

The role that this key attribute will assume:

  • 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.

Examples found in repository?
src/json_deser.rs (lines 10036-10045)
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pub(crate) fn deser_structure_crate_model_key_schema_element<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::KeySchemaElement>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::key_schema_element::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "AttributeName" => {
                                builder = builder.set_attribute_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KeyType" => {
                                builder = builder.set_key_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::KeyType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

Consumes the builder and constructs a KeySchemaElement.

Examples found in repository?
src/json_deser.rs (line 10060)
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pub(crate) fn deser_structure_crate_model_key_schema_element<'a, I>(
    tokens: &mut std::iter::Peekable<I>,
) -> Result<
    Option<crate::model::KeySchemaElement>,
    aws_smithy_json::deserialize::error::DeserializeError,
>
where
    I: Iterator<
        Item = Result<
            aws_smithy_json::deserialize::Token<'a>,
            aws_smithy_json::deserialize::error::DeserializeError,
        >,
    >,
{
    match tokens.next().transpose()? {
        Some(aws_smithy_json::deserialize::Token::ValueNull { .. }) => Ok(None),
        Some(aws_smithy_json::deserialize::Token::StartObject { .. }) => {
            #[allow(unused_mut)]
            let mut builder = crate::model::key_schema_element::Builder::default();
            loop {
                match tokens.next().transpose()? {
                    Some(aws_smithy_json::deserialize::Token::EndObject { .. }) => break,
                    Some(aws_smithy_json::deserialize::Token::ObjectKey { key, .. }) => {
                        match key.to_unescaped()?.as_ref() {
                            "AttributeName" => {
                                builder = builder.set_attribute_name(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| s.to_unescaped().map(|u| u.into_owned()))
                                    .transpose()?,
                                );
                            }
                            "KeyType" => {
                                builder = builder.set_key_type(
                                    aws_smithy_json::deserialize::token::expect_string_or_null(
                                        tokens.next(),
                                    )?
                                    .map(|s| {
                                        s.to_unescaped()
                                            .map(|u| crate::model::KeyType::from(u.as_ref()))
                                    })
                                    .transpose()?,
                                );
                            }
                            _ => aws_smithy_json::deserialize::token::skip_value(tokens)?,
                        }
                    }
                    other => {
                        return Err(
                            aws_smithy_json::deserialize::error::DeserializeError::custom(format!(
                                "expected object key or end object, found: {:?}",
                                other
                            )),
                        )
                    }
                }
            }
            Ok(Some(builder.build()))
        }
        _ => Err(
            aws_smithy_json::deserialize::error::DeserializeError::custom(
                "expected start object or null",
            ),
        ),
    }
}

Trait Implementations§

Returns a copy of the value. Read more
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This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations§

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Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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