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Introduce the FacetGroupLazyValue type

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Clément Renault 2024-06-05 15:06:25 -04:00
parent ff2e498267
commit e4a69c5ac3
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1 changed files with 20 additions and 0 deletions
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20
milli/src/heed_codec/facet/mod.rs
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@ -47,6 +47,12 @@ pub struct FacetGroupValue {
pub bitmap: RoaringBitmap, pub bitmap: RoaringBitmap,
} }
#[derive(Debug)]
pub struct FacetGroupLazyValue<'b> {
pub size: u8,
pub bitmap_bytes: &'b [u8],
}
pub struct FacetGroupKeyCodec<T> { pub struct FacetGroupKeyCodec<T> {
_phantom: PhantomData<T>, _phantom: PhantomData<T>,
} }
@ -69,6 +75,7 @@ where
Ok(Cow::Owned(v)) Ok(Cow::Owned(v))
} }
} }
impl<'a, T> heed::BytesDecode<'a> for FacetGroupKeyCodec<T> impl<'a, T> heed::BytesDecode<'a> for FacetGroupKeyCodec<T>
where where
T: BytesDecode<'a>, T: BytesDecode<'a>,
@ -84,6 +91,7 @@ where
} }
pub struct FacetGroupValueCodec; pub struct FacetGroupValueCodec;
impl<'a> heed::BytesEncode<'a> for FacetGroupValueCodec { impl<'a> heed::BytesEncode<'a> for FacetGroupValueCodec {
type EItem = FacetGroupValue; type EItem = FacetGroupValue;
@ -93,11 +101,23 @@ impl<'a> heed::BytesEncode<'a> for FacetGroupValueCodec {
Ok(Cow::Owned(v)) Ok(Cow::Owned(v))
} }
} }
impl<'a> heed::BytesDecode<'a> for FacetGroupValueCodec { impl<'a> heed::BytesDecode<'a> for FacetGroupValueCodec {
type DItem = FacetGroupValue; type DItem = FacetGroupValue;
fn bytes_decode(bytes: &'a [u8]) -> Result<Self::DItem, BoxedError> { fn bytes_decode(bytes: &'a [u8]) -> Result<Self::DItem, BoxedError> {
let size = bytes[0]; let size = bytes[0];
let bitmap = CboRoaringBitmapCodec::deserialize_from(&bytes[1..])?; let bitmap = CboRoaringBitmapCodec::deserialize_from(&bytes[1..])?;
Ok(FacetGroupValue { size, bitmap }) Ok(FacetGroupValue { size, bitmap })
} }
} }
pub struct FacetGroupLazyValueCodec;
impl<'a> heed::BytesDecode<'a> for FacetGroupLazyValueCodec {
type DItem = FacetGroupLazyValue<'a>;
fn bytes_decode(bytes: &'a [u8]) -> Result<Self::DItem, BoxedError> {
Ok(FacetGroupLazyValue { size: bytes[0], bitmap_bytes: &bytes[1..] })
}
}