Struct msi::Column

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

A database column.

Implementations§

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impl Column

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pub fn build<S: Into<String>>(name: S) -> ColumnBuilder

Begins building a new column with the given name.

Examples
let column = msi::Column::build("Foo").nullable().int16();
assert_eq!(column.name(), "Foo");
assert!(column.is_nullable());
assert_eq!(column.coltype(), msi::ColumnType::Int16);
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pub fn name(&self) -> &str

Returns the name of the column.

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pub fn coltype(&self) -> ColumnType

Returns the type of data stored in the column.

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pub fn is_localizable(&self) -> bool

Returns true if values in this column can be localized.

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pub fn is_nullable(&self) -> bool

Returns true if values in this column can be null.

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pub fn is_primary_key(&self) -> bool

Returns true if this is primary key column.

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pub fn value_range(&self) -> Option<(i32, i32)>

Returns the (min, max) integer value range for this column, if any.

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pub fn category(&self) -> Option<Category>

Returns the string value category for this column, if any.

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pub fn enum_values(&self) -> Option<&[String]>

Returns the list of valid enum values for this column, if any.

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pub fn is_valid_value(&self, value: &Value) -> bool

Returns true if the given value is valid for this column.

Trait Implementations§

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impl Clone for Column

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fn clone(&self) -> Column

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.