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Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Object ¶
type Object struct {
// contains filtered or unexported fields
}
Object is the interface to load a given VNG object from storage into memory and perform projections (or whole value reads) of the in-memory data. This is also suitable for one-pass use where the data is read on demand, used for processing, then discarded. Objects maybe be persisted across multiple callers of Cache and the zed.Context in use is passed in for each vector constructed from its in-memory shadow.
func NewObject ¶
NewObject creates a new in-memory Object corresponding to a VNG object residing in storage. The VNG header and metadata section are read and the metadata is deserialized so that vectors can be loaded into the cache on demand only as needed and retained in memory for future use.
func (*Object) Fetch ¶ added in v1.13.0
Fetch returns the indicated projection of data in this VNG object. If any required data is not memory resident, it will be fetched from storage and cached in memory so that subsequent calls run from memory. The vectors returned will have types from the provided zctx. Multiple Fetch calls to the same object may run concurrently.
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