pub enum ValueMode {
Exclusive,
Cluster,
Replace,
}
Expand description
Define the behavior of the index in case a key value pair already exists
An error will return if a key value pair already exists
The value will be add to a list of values for the key, duplicate value will be collapsed to
only one entry
The existing value will be replaced with the new value if a key value pair already exists
Performs copy-assignment from
source
.
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Formats the value using the given formatter.
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Converts to this type from the input type.
This method tests for self
and other
values to be equal, and is used
by ==
.
This method tests for !=
. The default implementation is almost always
sufficient, and should not be overridden without very good reason.
Immutably borrows from an owned value.
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Mutably borrows from an owned value.
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Returns the argument unchanged.
Calls U::from(self)
.
That is, this conversion is whatever the implementation of
From<T> for U
chooses to do.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning.
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Uses borrowed data to replace owned data, usually by cloning.
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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.