forked from cerc-io/ipld-eth-server
26 lines
814 B
Go
26 lines
814 B
Go
// Package keytransform introduces a Datastore Shim that transforms keys before
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// passing them to its child. It can be used to manipulate what keys look like
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// to the user, for example namespacing keys, reversing them, etc.
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//
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// Use the Wrap function to wrap a datastore with any KeyTransform.
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// A KeyTransform is simply an interface with two functions, a conversion and
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// its inverse. For example:
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//
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// import (
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// ktds "github.com/ipfs/go-datastore/keytransform"
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// ds "github.com/ipfs/go-datastore"
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// )
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//
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// func reverseKey(k ds.Key) ds.Key {
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// return k.Reverse()
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// }
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//
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// func invertKeys(d ds.Datastore) {
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// return ktds.Wrap(d, &ktds.Pair{
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// Convert: reverseKey,
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// Invert: reverseKey, // reverse is its own inverse.
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// })
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// }
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//
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package keytransform
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