CopyOptions

opendal::options

Struct CopyOptions 

Source 
pub struct CopyOptions {
    pub if_not_exists: bool,
    pub source_content_length_hint: Option<u64>,
    pub concurrent: usize,
    pub chunk: Option<usize>,
}
Expand description

Options for copy operations.

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§if_not_exists: bool

Sets the condition that copy operation will succeed only if target does not exist.

§Capability

Check [Capability::copy_with_if_not_exists] before using this feature.

§Behavior
  • If supported, the copy operation will only succeed if the target path does not exist
  • Will return error if target already exists
  • If not supported, the value will be ignored

This operation provides a way to ensure copy operations only create new resources without overwriting existing ones, useful for implementing “copy if not exists” logic.

§source_content_length_hint: Option<u64>

Known content length of the source object.

This is an execution hint that allows OpenDAL to avoid extra metadata requests while planning copy operations. It must not be used as an object identity or consistency condition.

§concurrent: usize

Sets concurrent copy operations for this copier.

This is a best-effort execution option. Services that cannot split copy into concurrent server-side tasks can ignore it.

§chunk: Option<usize>

Sets chunk size for segmented copy operations.

§Capability

Check [Capability::copy_can_multi], [Capability::copy_multi_min_size] and [Capability::copy_multi_max_size] before using this feature.

This is a best-effort execution option. Services that support server-side segmented copy can use it as the target size for each copy step. Services that cannot split copy operations can ignore it.

Trait Implementations§

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impl Clone for CopyOptions

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fn clone(&self) -> CopyOptions

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CopyOptions

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

Formats the value using the given formatter. Read more
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impl Default for CopyOptions

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fn default() -> CopyOptions

Returns the “default value” for a type. Read more
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impl PartialEq for CopyOptions

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fn eq(&self, other: &CopyOptions) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for CopyOptions

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impl StructuralPartialEq for CopyOptions

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