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ComposeSourceOptions

opendal::options

Struct ComposeSourceOptions 

pub struct ComposeSourceOptions {
    pub version: Option<String>,
    pub if_match: Option<String>,
    pub if_not_changed: Option<Metadata>,
}
Expand description

Options for one complete source object in a composition.

These options select or constrain the source object. They do not apply to the destination object.

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§version: Option<String>

Compose this version of the source object.

This selects which stored version the composition reads; it is not a condition on the destination object.

Check crate::Capability::compose_with_source_version before using this option.

§if_match: Option<String>

Compose only when the selected source has this exact ETag.

The operation returns crate::ErrorKind::Unsupported when the service does not advertise crate::Capability::compose_with_source_if_match.

§if_not_changed: Option<Metadata>

Compose only when the selected source retains this metadata identity.

OpenDAL selects the metadata version when the service supports source versions. Otherwise it requires the ETag when possible. The operation returns crate::ErrorKind::Unsupported when the service does not support the derived source option, and crate::ErrorKind::ConfigInvalid when the metadata contains neither identity.

Trait Implementations§

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impl Clone for ComposeSourceOptions

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fn clone(&self) -> ComposeSourceOptions

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 ComposeSourceOptions

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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 ComposeSourceOptions

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fn default() -> ComposeSourceOptions

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

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fn eq(&self, other: &ComposeSourceOptions) -> 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 ComposeSourceOptions

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impl StructuralPartialEq for ComposeSourceOptions

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