Enum rusqlite::types::ValueRef [] [src]

pub enum ValueRef<'a> {
    Null,
    Integer(i64),
    Real(f64),
    Text(&'a str),
    Blob(&'a [u8]),
}

A non-owning dynamic type value. Typically the memory backing this value is owned by SQLite.

See Value for an owning dynamic type value.

Variants

The value is a NULL value.

The value is a signed integer.

The value is a floating point number.

The value is a text string.

The value is a blob of data

Methods

impl<'a> ValueRef<'a>
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impl<'a> ValueRef<'a>
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If self is case Integer, returns the integral value. Otherwise, returns Err(Error::InvalidColumnType).

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If self is case Real, returns the floating point value. Otherwise, returns Err(Error::InvalidColumnType).

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If self is case Text, returns the string value. Otherwise, returns Err(Error::InvalidColumnType).

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If self is case Blob, returns the byte slice. Otherwise, returns Err(Error::InvalidColumnType).

Trait Implementations

impl<'a> Copy for ValueRef<'a>
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impl<'a> Clone for ValueRef<'a>
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Returns a copy of the value. Read more

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Performs copy-assignment from source. Read more

impl<'a> Debug for ValueRef<'a>
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Formats the value using the given formatter. Read more

impl<'a> PartialEq for ValueRef<'a>
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This method tests for self and other values to be equal, and is used by ==. Read more

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This method tests for !=.

impl<'a> From<ValueRef<'a>> for Value
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Performs the conversion.

impl<'a> From<&'a str> for ValueRef<'a>
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Performs the conversion.

impl<'a> From<&'a [u8]> for ValueRef<'a>
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Performs the conversion.

impl<'a> From<&'a Value> for ValueRef<'a>
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Performs the conversion.