Trait arrow::ffi::ArrowArrayRef
source · [−]pub trait ArrowArrayRef {
fn owner(&self) -> &Arc<FFI_ArrowArray>;
fn array(&self) -> &FFI_ArrowArray;
fn schema(&self) -> &FFI_ArrowSchema;
fn data_type(&self) -> Result<DataType>;
fn to_data(&self) -> Result<ArrayData> { ... }
fn buffers(&self) -> Result<Vec<Buffer>> { ... }
fn buffer_len(&self, i: usize) -> Result<usize> { ... }
fn null_bit_buffer(&self) -> Option<Buffer> { ... }
fn child(&self, index: usize) -> ArrowArrayChild<'_> { ... }
fn dictionary(&self) -> Option<ArrowArrayChild<'_>> { ... }
}
Required Methods
fn owner(&self) -> &Arc<FFI_ArrowArray>
fn array(&self) -> &FFI_ArrowArray
fn schema(&self) -> &FFI_ArrowSchema
Provided Methods
returns all buffers, as organized by Rust (i.e. null buffer is skipped)
fn buffer_len(&self, i: usize) -> Result<usize>
fn buffer_len(&self, i: usize) -> Result<usize>
Returns the length, in bytes, of the buffer i
(indexed according to the C data interface)
fn null_bit_buffer(&self) -> Option<Buffer>
fn null_bit_buffer(&self) -> Option<Buffer>
returns the null bit buffer. Rust implementation uses a buffer that is not part of the array of buffers. The C Data interface’s null buffer is part of the array of buffers.