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DataSource

ncview_rs::data

Trait DataSource 

Source 
pub trait DataSource: Send + Sync {

Show 13 methods    // Required methods
    fn metadata(&self) -> &DatasetMetadata;
    fn read_slice(&self, request: &SliceRequest) -> Result<Slice2D>;

    // Provided methods
    fn is_remote(&self) -> bool { ... }
    fn source_identity(&self) -> Option<&str> { ... }
    fn remote_capabilities(&self) -> Option<AccessCapabilities> { ... }
    fn read_slice_on_axes(
        &self,
        request: &SliceRequest,
        _row_axis: Option<&str>,
        _col_axis: Option<&str>,
        _fixed_axes: &[(String, usize)],
    ) -> Result<Slice2D> { ... }
    fn read_slice_on_axes_cancellable(
        &self,
        request: &SliceRequest,
        row_axis: Option<&str>,
        col_axis: Option<&str>,
        fixed_axes: &[(String, usize)],
        _cancelled: Arc<AtomicBool>,
    ) -> Result<Slice2D> { ... }
    fn time_label(&self, _index: usize) -> Option<String> { ... }
    fn time_label_for_variable(
        &self,
        _variable: &str,
        index: usize,
    ) -> Option<String> { ... }
    fn vertical_label(&self, _variable: &str, _index: usize) -> Option<String> { ... }
    fn vertical_labels(&self, variable: &str) -> Vec<String> { ... }
    fn dimension_values(
        &self,
        _variable: &str,
        _dimension: &str,
    ) -> Option<Vec<f64>> { ... }
    fn point_coordinates(
        &self,
        _variable: &str,
        _row: usize,
        _col: usize,
    ) -> PointCoordinates { ... }

}

Required Methods§

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fn metadata(&self) -> &DatasetMetadata

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fn read_slice(&self, request: &SliceRequest) -> Result<Slice2D>

Provided Methods§

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fn is_remote(&self) -> bool

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fn source_identity(&self) -> Option<&str>

Stable source-version token for remote collection diagnostics and cache identity.

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fn remote_capabilities(&self) -> Option<AccessCapabilities>

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fn read_slice_on_axes( &self, request: &SliceRequest, _row_axis: Option<&str>, _col_axis: Option<&str>, _fixed_axes: &[(String, usize)], ) -> Result<Slice2D>

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fn read_slice_on_axes_cancellable( &self, request: &SliceRequest, row_axis: Option<&str>, col_axis: Option<&str>, fixed_axes: &[(String, usize)], _cancelled: Arc<AtomicBool>, ) -> Result<Slice2D>

Variant used by interactive workers that may supersede an in-flight provider operation. Format adapters that can propagate cancellation override this; local sources retain the ordinary synchronous behavior.

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fn time_label(&self, _index: usize) -> Option<String>

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fn time_label_for_variable( &self, _variable: &str, index: usize, ) -> Option<String>

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fn vertical_label(&self, _variable: &str, _index: usize) -> Option<String>

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fn vertical_labels(&self, variable: &str) -> Vec<String>

Labels for every index of the variable’s vertical (Depth) axis, in index order. Empty when the variable has no vertical axis. The sidebar level list renders this, so it is read once per variable change rather than per frame.

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fn dimension_values( &self, _variable: &str, _dimension: &str, ) -> Option<Vec<f64>>

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fn point_coordinates( &self, _variable: &str, _row: usize, _col: usize, ) -> PointCoordinates

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§