pub struct JsonLinesLoader<REC: DeserializeOwned> { /* private fields */ }
Expand description

A struct that defines the CSV loader with configurable options.

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impl<REC: DeserializeOwned + Debug + Sync> JsonLinesLoader<REC>

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pub fn new(path: PathBuf, regex_filter: Option<Regex>) -> Self

Creates a new CSV loader with the given path.

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pub fn load_into_graph<F, G>(&self, g: &G, loader: F) -> Result<(), JsonErr>where REC: DeserializeOwned + Debug, F: Fn(REC, &G) -> Result<(), GraphError> + Send + Sync, G: Sync,

Load data from all JSON files in the directory into a graph.

Arguments
  • g - A reference to the graph object where the data should be loaded.
  • loader - A closure that takes a deserialized record and the graph object as arguments and adds the record to the graph.
Returns

A Result containing an empty Ok value if the data is loaded successfully.

Errors

An error of type CsvErr is returned if an I/O error occurs while reading the files or parsing the CSV data.

Trait Implementations§

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impl<REC: Debug + DeserializeOwned> Debug for JsonLinesLoader<REC>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<REC> RefUnwindSafe for JsonLinesLoader<REC>where REC: RefUnwindSafe,

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impl<REC> Send for JsonLinesLoader<REC>where REC: Send,

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impl<REC> Sync for JsonLinesLoader<REC>where REC: Sync,

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impl<REC> Unpin for JsonLinesLoader<REC>where REC: Unpin,

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impl<REC> UnwindSafe for JsonLinesLoader<REC>where REC: UnwindSafe,

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more