class

Nuummite

Inherits Locking < Reference < Object

Nuummite is a minimalistic persistent key-value store.

Constants

VERSION = 1

Constructors

new(folder : String, filename : String = "db.nuummite", sync : Bool = true)
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Instance methods

[](key)

Reads value to given key.

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[]=(key, value)

Set key to value.

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[]?(key)

Reads value to given key. Returns nil if key is not avilable.

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auto_garbage_collect_after_writes

Number of writes or deletes before automatic garbage collection happens.

Set it to nil to disable automatic garbage collection.

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auto_garbage_collect_after_writes=(auto_garbage_collect_after_writes : Int32 | Nil)

Number of writes or deletes before automatic garbage collection happens.

Set it to nil to disable automatic garbage collection.

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delete(key)

Delets a key. Returns its value.

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each(starts_with : String = "", &)

Yields every key-value pair where the key starts with starts_with.

db["crystals/ruby"] = "9.0"
db["crystals/quartz"] = "~ 7.0"
db["crystals/nuummite"] = "5.5 - 6.0"

db.each("crystals/") do |key, value|
  # only crystals in here
end

starts_with defaults to "". Then every key-value pair is yield.

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garbage_collect

Rewrites current state to logfile.

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shutdown

Shuts down this instance of Nuummite.

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sync

If true the logfile is flushed on every write.

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sync=(sync : Bool)

If true the logfile is flushed on every write.

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Nested types