parkour.wrapper documentation

Wrapper
Protocol for working with mutable wrapper objects, such as Hadoop Writables.

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auto-wrapper
macro
(auto-wrapper & cs)
Auto-generate `Wrapper` implementations for classes `cs`.

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clone
(clone wobj)(clone conf wobj)
Return a clone of wrapper object `wobj`.

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new-instance
(new-instance klass)(new-instance conf klass)
Return a new instance of the class of `klass`, or of `klass` itself if a
class.  If Hadoop `conf` is provided and `klass` is Configurable, configure the
new instance with `conf`.
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rewrap
(rewrap wobj obj)
Mutate wapper `wobj` to wrap `obj`.

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unwrap
(unwrap wobj)
Unwrap `wobj` in a type-specific fashion.

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unwrap-all
(unwrap-all coll)
Unwrap all members of `coll` (usually key/value) to new vector.

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wrap-keyvals
(wrap-keyvals k v)(wrap-keyvals conf k v)
Return a function which wraps its key/value pair argument in instances of the
wrapper types `k` & `v`.
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wrap-vals
(wrap-vals t)(wrap-vals conf t)
Return a function which wraps its argument in an instance of the wrapper type
`t`.
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