Struct mentat_transaction::InProgressRead
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pub struct InProgressRead<'a, 'c> { pub in_progress: InProgress<'a, 'c>, }
Represents an in-progress set of reads to the store. Just like InProgress
,
which is read-write, but only allows for reads.
Fields
in_progress: InProgress<'a, 'c>
Methods
impl<'a, 'c> InProgressRead<'a, 'c>
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pub fn last_tx_id(&self) -> Entid
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Trait Implementations
impl<'a, 'c> Queryable for InProgressRead<'a, 'c>
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fn q_once<T>(&self, query: &str, inputs: T) -> Result<QueryOutput> where
T: Into<Option<QueryInputs>>,
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T: Into<Option<QueryInputs>>,
fn q_prepare<T>(&self, query: &str, inputs: T) -> PreparedResult where
T: Into<Option<QueryInputs>>,
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T: Into<Option<QueryInputs>>,
fn q_explain<T>(&self, query: &str, inputs: T) -> Result<QueryExplanation> where
T: Into<Option<QueryInputs>>,
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T: Into<Option<QueryInputs>>,
fn lookup_values_for_attribute<E>(
&self,
entity: E,
attribute: &Keyword
) -> Result<Vec<TypedValue>> where
E: Into<Entid>,
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&self,
entity: E,
attribute: &Keyword
) -> Result<Vec<TypedValue>> where
E: Into<Entid>,
fn lookup_value_for_attribute<E>(
&self,
entity: E,
attribute: &Keyword
) -> Result<Option<TypedValue>> where
E: Into<Entid>,
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&self,
entity: E,
attribute: &Keyword
) -> Result<Option<TypedValue>> where
E: Into<Entid>,
impl<'a, 'c> Pullable for InProgressRead<'a, 'c>
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fn pull_attributes_for_entities<E, A>(
&self,
entities: E,
attributes: A
) -> Result<BTreeMap<Entid, ValueRc<StructuredMap>>> where
E: IntoIterator<Item = Entid>,
A: IntoIterator<Item = Entid>,
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&self,
entities: E,
attributes: A
) -> Result<BTreeMap<Entid, ValueRc<StructuredMap>>> where
E: IntoIterator<Item = Entid>,
A: IntoIterator<Item = Entid>,
fn pull_attributes_for_entity<A>(
&self,
entity: Entid,
attributes: A
) -> Result<StructuredMap> where
A: IntoIterator<Item = Entid>,
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&self,
entity: Entid,
attributes: A
) -> Result<StructuredMap> where
A: IntoIterator<Item = Entid>,
impl<'a, 'c> HasSchema for InProgressRead<'a, 'c>
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fn entid_for_type(&self, t: ValueType) -> Option<KnownEntid>
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fn get_ident<T>(&self, x: T) -> Option<&Keyword> where
T: Into<Entid>,
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T: Into<Entid>,
fn get_entid(&self, x: &Keyword) -> Option<KnownEntid>
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fn attribute_for_entid<T>(&self, x: T) -> Option<&Attribute> where
T: Into<Entid>,
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T: Into<Entid>,
fn attribute_for_ident(
&self,
ident: &Keyword
) -> Option<(&Attribute, KnownEntid)>
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&self,
ident: &Keyword
) -> Option<(&Attribute, KnownEntid)>
fn is_attribute<T>(&self, x: T) -> bool where
T: Into<Entid>,
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T: Into<Entid>,
Return true if the provided entid identifies an attribute in this schema.
fn identifies_attribute(&self, x: &Keyword) -> bool
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Return true if the provided ident identifies an attribute in this schema.