Struct hdk::prelude::QueryFilter
source · [−]#[non_exhaustive]pub struct QueryFilter {
pub sequence_range: ChainQueryFilterRange,
pub entry_type: Option<EntryType>,
pub entry_hashes: Option<HashSet<HoloHash<Entry>, RandomState>>,
pub header_type: Option<HeaderType>,
pub include_entries: bool,
}
Expand description
Query arguments
Fields (Non-exhaustive)
This struct is marked as non-exhaustive
Struct { .. }
syntax; cannot be matched against without a wildcard ..
; and struct update syntax will not work.sequence_range: ChainQueryFilterRange
Limit the results to a range of elements according to their headers.
entry_type: Option<EntryType>
Filter by EntryType
entry_hashes: Option<HashSet<HoloHash<Entry>, RandomState>>
Filter by a list of EntryHash
.
header_type: Option<HeaderType>
Filter by HeaderType
include_entries: bool
Include the entries in the elements
Implementations
Create a no-op ChainQueryFilter which returns everything.
Filter on sequence range.
Filter on entry type.
pub fn entry_hashes(
self,
entry_hashes: HashSet<HoloHash<Entry>, RandomState>
) -> ChainQueryFilter
pub fn entry_hashes(
self,
entry_hashes: HashSet<HoloHash<Entry>, RandomState>
) -> ChainQueryFilter
Filter on entry hashes.
Filter on header type.
Include the entries in the ElementsVec that is returned.
If the sequence range supports fork disambiguation, apply it to remove headers that are not in the correct branch. Numerical range bounds do NOT support fork disambiguation, and neither does unbounded, but everything hash bounded does.
Filter a vector of hashed headers according to the query.
Trait Implementations
Returns the “default value” for a type. Read more
pub fn deserialize<__D>(
__deserializer: __D
) -> Result<ChainQueryFilter, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
pub fn deserialize<__D>(
__deserializer: __D
) -> Result<ChainQueryFilter, <__D as Deserializer<'de>>::Error> where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
pub fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
__S: Serializer,
pub fn serialize<__S>(
&self,
__serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
__S: Serializer,
Serialize this value into the given Serde serializer. Read more
type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
Performs the conversion.
type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
Performs the conversion.
type Error = SerializedBytesError
type Error = SerializedBytesError
The type returned in the event of a conversion error.
Performs the conversion.
Auto Trait Implementations
impl RefUnwindSafe for ChainQueryFilter
impl Send for ChainQueryFilter
impl Sync for ChainQueryFilter
impl Unpin for ChainQueryFilter
impl UnwindSafe for ChainQueryFilter
Blanket Implementations
Mutably borrows from an owned value. Read more
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn instrument(self, span: Span) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn in_current_span(self) -> Instrumented<Self>ⓘNotable traits for Instrumented<T>impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
impl<T> Future for Instrumented<T> where
T: Future, type Output = <T as Future>::Output;
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
where
S: Into<Dispatch>,
impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
fn with_current_subscriber(self) -> WithDispatch<Self>ⓘNotable traits for WithDispatch<T>impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
impl<T> Future for WithDispatch<T> where
T: Future, type Output = <T as Future>::Output;
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more