// Code generated by software.amazon.smithy.rust.codegen.smithy-rs. DO NOT EDIT.

/// <p>Represents a request to perform an <code>UpdateItem</code> operation.</p>
#[non_exhaustive]
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::fmt::Debug)]
pub struct Update {
    /// <p>The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.</p>
    pub key: ::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>,
    /// <p>An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.</p>
    pub update_expression: ::std::string::String,
    /// <p>Name of the table for the <code>UpdateItem</code> request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.</p>
    pub table_name: ::std::string::String,
    /// <p>A condition that must be satisfied in order for a conditional update to succeed.</p>
    pub condition_expression: ::std::option::Option<::std::string::String>,
    /// <p>One or more substitution tokens for attribute names in an expression.</p>
    pub expression_attribute_names: ::std::option::Option<::std::collections::HashMap<::std::string::String, ::std::string::String>>,
    /// <p>One or more values that can be substituted in an expression.</p>
    pub expression_attribute_values: ::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>>,
    /// <p>Use <code>ReturnValuesOnConditionCheckFailure</code> to get the item attributes if the <code>Update</code> condition fails. For <code>ReturnValuesOnConditionCheckFailure</code>, the valid values are: NONE and ALL_OLD.</p>
    pub return_values_on_condition_check_failure: ::std::option::Option<crate::types::ReturnValuesOnConditionCheckFailure>,
}
impl Update {
    /// <p>The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.</p>
    pub fn key(&self) -> &::std::collections::HashMap<::std::string::String, crate::types::AttributeValue> {
        &self.key
    }
    /// <p>An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.</p>
    pub fn update_expression(&self) -> &str {
        use std::ops::Deref;
        self.update_expression.deref()
    }
    /// <p>Name of the table for the <code>UpdateItem</code> request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.</p>
    pub fn table_name(&self) -> &str {
        use std::ops::Deref;
        self.table_name.deref()
    }
    /// <p>A condition that must be satisfied in order for a conditional update to succeed.</p>
    pub fn condition_expression(&self) -> ::std::option::Option<&str> {
        self.condition_expression.as_deref()
    }
    /// <p>One or more substitution tokens for attribute names in an expression.</p>
    pub fn expression_attribute_names(&self) -> ::std::option::Option<&::std::collections::HashMap<::std::string::String, ::std::string::String>> {
        self.expression_attribute_names.as_ref()
    }
    /// <p>One or more values that can be substituted in an expression.</p>
    pub fn expression_attribute_values(
        &self,
    ) -> ::std::option::Option<&::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>> {
        self.expression_attribute_values.as_ref()
    }
    /// <p>Use <code>ReturnValuesOnConditionCheckFailure</code> to get the item attributes if the <code>Update</code> condition fails. For <code>ReturnValuesOnConditionCheckFailure</code>, the valid values are: NONE and ALL_OLD.</p>
    pub fn return_values_on_condition_check_failure(&self) -> ::std::option::Option<&crate::types::ReturnValuesOnConditionCheckFailure> {
        self.return_values_on_condition_check_failure.as_ref()
    }
}
impl Update {
    /// Creates a new builder-style object to manufacture [`Update`](crate::types::Update).
    pub fn builder() -> crate::types::builders::UpdateBuilder {
        crate::types::builders::UpdateBuilder::default()
    }
}

/// A builder for [`Update`](crate::types::Update).
#[derive(::std::clone::Clone, ::std::cmp::PartialEq, ::std::default::Default, ::std::fmt::Debug)]
#[non_exhaustive]
pub struct UpdateBuilder {
    pub(crate) key: ::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>>,
    pub(crate) update_expression: ::std::option::Option<::std::string::String>,
    pub(crate) table_name: ::std::option::Option<::std::string::String>,
    pub(crate) condition_expression: ::std::option::Option<::std::string::String>,
    pub(crate) expression_attribute_names: ::std::option::Option<::std::collections::HashMap<::std::string::String, ::std::string::String>>,
    pub(crate) expression_attribute_values: ::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>>,
    pub(crate) return_values_on_condition_check_failure: ::std::option::Option<crate::types::ReturnValuesOnConditionCheckFailure>,
}
impl UpdateBuilder {
    /// Adds a key-value pair to `key`.
    ///
    /// To override the contents of this collection use [`set_key`](Self::set_key).
    ///
    /// <p>The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.</p>
    pub fn key(mut self, k: impl ::std::convert::Into<::std::string::String>, v: crate::types::AttributeValue) -> Self {
        let mut hash_map = self.key.unwrap_or_default();
        hash_map.insert(k.into(), v);
        self.key = ::std::option::Option::Some(hash_map);
        self
    }
    /// <p>The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.</p>
    pub fn set_key(mut self, input: ::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>>) -> Self {
        self.key = input;
        self
    }
    /// <p>The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.</p>
    pub fn get_key(&self) -> &::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>> {
        &self.key
    }
    /// <p>An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.</p>
    /// This field is required.
    pub fn update_expression(mut self, input: impl ::std::convert::Into<::std::string::String>) -> Self {
        self.update_expression = ::std::option::Option::Some(input.into());
        self
    }
    /// <p>An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.</p>
    pub fn set_update_expression(mut self, input: ::std::option::Option<::std::string::String>) -> Self {
        self.update_expression = input;
        self
    }
    /// <p>An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.</p>
    pub fn get_update_expression(&self) -> &::std::option::Option<::std::string::String> {
        &self.update_expression
    }
    /// <p>Name of the table for the <code>UpdateItem</code> request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.</p>
    /// This field is required.
    pub fn table_name(mut self, input: impl ::std::convert::Into<::std::string::String>) -> Self {
        self.table_name = ::std::option::Option::Some(input.into());
        self
    }
    /// <p>Name of the table for the <code>UpdateItem</code> request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.</p>
    pub fn set_table_name(mut self, input: ::std::option::Option<::std::string::String>) -> Self {
        self.table_name = input;
        self
    }
    /// <p>Name of the table for the <code>UpdateItem</code> request. You can also provide the Amazon Resource Name (ARN) of the table in this parameter.</p>
    pub fn get_table_name(&self) -> &::std::option::Option<::std::string::String> {
        &self.table_name
    }
    /// <p>A condition that must be satisfied in order for a conditional update to succeed.</p>
    pub fn condition_expression(mut self, input: impl ::std::convert::Into<::std::string::String>) -> Self {
        self.condition_expression = ::std::option::Option::Some(input.into());
        self
    }
    /// <p>A condition that must be satisfied in order for a conditional update to succeed.</p>
    pub fn set_condition_expression(mut self, input: ::std::option::Option<::std::string::String>) -> Self {
        self.condition_expression = input;
        self
    }
    /// <p>A condition that must be satisfied in order for a conditional update to succeed.</p>
    pub fn get_condition_expression(&self) -> &::std::option::Option<::std::string::String> {
        &self.condition_expression
    }
    /// Adds a key-value pair to `expression_attribute_names`.
    ///
    /// To override the contents of this collection use [`set_expression_attribute_names`](Self::set_expression_attribute_names).
    ///
    /// <p>One or more substitution tokens for attribute names in an expression.</p>
    pub fn expression_attribute_names(
        mut self,
        k: impl ::std::convert::Into<::std::string::String>,
        v: impl ::std::convert::Into<::std::string::String>,
    ) -> Self {
        let mut hash_map = self.expression_attribute_names.unwrap_or_default();
        hash_map.insert(k.into(), v.into());
        self.expression_attribute_names = ::std::option::Option::Some(hash_map);
        self
    }
    /// <p>One or more substitution tokens for attribute names in an expression.</p>
    pub fn set_expression_attribute_names(
        mut self,
        input: ::std::option::Option<::std::collections::HashMap<::std::string::String, ::std::string::String>>,
    ) -> Self {
        self.expression_attribute_names = input;
        self
    }
    /// <p>One or more substitution tokens for attribute names in an expression.</p>
    pub fn get_expression_attribute_names(
        &self,
    ) -> &::std::option::Option<::std::collections::HashMap<::std::string::String, ::std::string::String>> {
        &self.expression_attribute_names
    }
    /// Adds a key-value pair to `expression_attribute_values`.
    ///
    /// To override the contents of this collection use [`set_expression_attribute_values`](Self::set_expression_attribute_values).
    ///
    /// <p>One or more values that can be substituted in an expression.</p>
    pub fn expression_attribute_values(mut self, k: impl ::std::convert::Into<::std::string::String>, v: crate::types::AttributeValue) -> Self {
        let mut hash_map = self.expression_attribute_values.unwrap_or_default();
        hash_map.insert(k.into(), v);
        self.expression_attribute_values = ::std::option::Option::Some(hash_map);
        self
    }
    /// <p>One or more values that can be substituted in an expression.</p>
    pub fn set_expression_attribute_values(
        mut self,
        input: ::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>>,
    ) -> Self {
        self.expression_attribute_values = input;
        self
    }
    /// <p>One or more values that can be substituted in an expression.</p>
    pub fn get_expression_attribute_values(
        &self,
    ) -> &::std::option::Option<::std::collections::HashMap<::std::string::String, crate::types::AttributeValue>> {
        &self.expression_attribute_values
    }
    /// <p>Use <code>ReturnValuesOnConditionCheckFailure</code> to get the item attributes if the <code>Update</code> condition fails. For <code>ReturnValuesOnConditionCheckFailure</code>, the valid values are: NONE and ALL_OLD.</p>
    pub fn return_values_on_condition_check_failure(mut self, input: crate::types::ReturnValuesOnConditionCheckFailure) -> Self {
        self.return_values_on_condition_check_failure = ::std::option::Option::Some(input);
        self
    }
    /// <p>Use <code>ReturnValuesOnConditionCheckFailure</code> to get the item attributes if the <code>Update</code> condition fails. For <code>ReturnValuesOnConditionCheckFailure</code>, the valid values are: NONE and ALL_OLD.</p>
    pub fn set_return_values_on_condition_check_failure(
        mut self,
        input: ::std::option::Option<crate::types::ReturnValuesOnConditionCheckFailure>,
    ) -> Self {
        self.return_values_on_condition_check_failure = input;
        self
    }
    /// <p>Use <code>ReturnValuesOnConditionCheckFailure</code> to get the item attributes if the <code>Update</code> condition fails. For <code>ReturnValuesOnConditionCheckFailure</code>, the valid values are: NONE and ALL_OLD.</p>
    pub fn get_return_values_on_condition_check_failure(&self) -> &::std::option::Option<crate::types::ReturnValuesOnConditionCheckFailure> {
        &self.return_values_on_condition_check_failure
    }
    /// Consumes the builder and constructs a [`Update`](crate::types::Update).
    /// This method will fail if any of the following fields are not set:
    /// - [`key`](crate::types::builders::UpdateBuilder::key)
    /// - [`update_expression`](crate::types::builders::UpdateBuilder::update_expression)
    /// - [`table_name`](crate::types::builders::UpdateBuilder::table_name)
    pub fn build(self) -> ::std::result::Result<crate::types::Update, ::aws_smithy_types::error::operation::BuildError> {
        ::std::result::Result::Ok(crate::types::Update {
            key: self.key.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "key",
                    "key was not specified but it is required when building Update",
                )
            })?,
            update_expression: self.update_expression.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "update_expression",
                    "update_expression was not specified but it is required when building Update",
                )
            })?,
            table_name: self.table_name.ok_or_else(|| {
                ::aws_smithy_types::error::operation::BuildError::missing_field(
                    "table_name",
                    "table_name was not specified but it is required when building Update",
                )
            })?,
            condition_expression: self.condition_expression,
            expression_attribute_names: self.expression_attribute_names,
            expression_attribute_values: self.expression_attribute_values,
            return_values_on_condition_check_failure: self.return_values_on_condition_check_failure,
        })
    }
}