Struct arthas::Query

pub struct Query<'a, T> { /* fields omitted */ }

Query.

Methods

impl<'a, T: Structure> Query<'a, T>

fn new() -> Query<'a, T>

Create new query.

fn id<I: AsRef<str>>(self, id: I) -> Query<'a, T>

Query with id.

fn limit(self, limit: usize) -> Query<'a, T>

Limit like sql.

fn offset(self, offset: usize) -> Query<'a, T>

Offset like sql.

fn field<I: AsRef<str>>(self, field: I) -> Query<'a, T>

Set field for later comparision.

fn eq<V: Serialize>(self, other: V) -> Query<'a, T>

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

fn ne<V: Serialize>(self, other: V) -> Query<'a, T>

This method tests for !=.

fn gt<V: Serialize>(self, other: V) -> Query<'a, T>

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

fn lt<V: Serialize>(self, other: V) -> Query<'a, T>

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

fn ge<V: Serialize>(self, other: V) -> Query<'a, T>

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

fn le<V: Serialize>(self, other: V) -> Query<'a, T>

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

fn len<I: AsRef<str>>(self, field: I) -> Query<'a, T>

Query the field's length.

fn desc<I: AsRef<str>>(self, field: I) -> Query<'a, T>

Query order desc field.

fn asc<I: AsRef<str>>(self, field: I) -> Query<'a, T>

Query order asc field.

fn insert(self, item: T) -> Result<Id, Error>

Insert an item.

fn remove(self) -> Result<Vec<T>, Error>

Remove item.

fn update<F>(self, updater: F) -> Result<usize, Error> where F: Fn(&mut T) + 'a

Update items.

fn replace(self, item: T) -> Result<(), Error>

Replace an item.

fn find(self) -> Result<Vec<T>, Error>

Find items.

fn find_one(self) -> Result<Option<T>, Error>

Find only one item.

fn count(self) -> Result<usize, Error>

Count items.

Trait Implementations

impl<'a, T: Default> Default for Query<'a, T>

fn default() -> Query<'a, T>

Returns the "default value" for a type.

impl<'a, T: Structure> Debug for Query<'a, T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.