Struct mentat::vocabulary::AttributeBuilder

pub struct AttributeBuilder {
    pub value_type: Option<ValueType>,
    pub multival: Option<bool>,
    pub unique: Option<Option<Unique>>,
    pub index: Option<bool>,
    pub fulltext: Option<bool>,
    pub component: Option<bool>,
    pub no_history: Option<bool>,
    // some fields omitted
}

Fields

value_type: Option<ValueType>

multival: Option<bool>

unique: Option<Option<Unique>>

index: Option<bool>

fulltext: Option<bool>

component: Option<bool>

no_history: Option<bool>

Methods

impl AttributeBuilder

pub fn helpful() -> AttributeBuilder

Make a new AttributeBuilder for human consumption: it will help you by flipping relevant flags.

pub fn to_modify_attribute(attribute: &Attribute) -> AttributeBuilder

Make a new AttributeBuilder from an existing Attribute. This is important to allow retraction. Only attributes that we allow to change are duplicated here.

pub fn value_type(     &'a mut self,     value_type: ValueType ) -> &'a mut AttributeBuilder

pub fn multival(&'a mut self, multival: bool) -> &'a mut AttributeBuilder

pub fn non_unique(&'a mut self) -> &'a mut AttributeBuilder

pub fn unique(&'a mut self, unique: Unique) -> &'a mut AttributeBuilder

pub fn index(&'a mut self, index: bool) -> &'a mut AttributeBuilder

pub fn fulltext(&'a mut self, fulltext: bool) -> &'a mut AttributeBuilder

pub fn component(&'a mut self, component: bool) -> &'a mut AttributeBuilder

pub fn no_history(&'a mut self, no_history: bool) -> &'a mut AttributeBuilder

pub fn validate_install_attribute(&self) -> Result<(), DbError>

pub fn validate_alter_attribute(&self) -> Result<(), DbError>

pub fn build(&self) -> Attribute

Important traits for Vec<u8>

impl Write for Vec<u8>

pub fn mutate(&self, attribute: &mut Attribute) -> Vec<AttributeAlteration>

Trait Implementations

impl Clone for AttributeBuilder

fn clone(&self) -> AttributeBuilder

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Hash for AttributeBuilder

fn hash<__H>(&self, __arg_0: &mut __H) where     __H: Hasher,

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Eq for AttributeBuilder

impl Debug for AttributeBuilder

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialOrd<AttributeBuilder> for AttributeBuilder

fn partial_cmp(&self, __arg_0: &AttributeBuilder) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &AttributeBuilder) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &AttributeBuilder) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &AttributeBuilder) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &AttributeBuilder) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for AttributeBuilder

fn cmp(&self, __arg_0: &AttributeBuilder) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl PartialEq<AttributeBuilder> for AttributeBuilder

fn eq(&self, __arg_0: &AttributeBuilder) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &AttributeBuilder) -> bool

This method tests for !=.

impl Default for AttributeBuilder

fn default() -> AttributeBuilder

Returns the "default value" for a type.