scribe.decimal — vise890/scribe 2018.9.24

Utils for the conversions and massaging of BigDecimal values.

->decimal-conformer clj macro

(->decimal-conformer & {:keys [precision scale]})

Returns a clojure.spec.alpha/conformer, that conforms a decimal? with precision and scale, returning :clojure.spec.alpha/invalid if unsuccessful.

byte-buffer? clj

(byte-buffer? x)

Is x an instance of a java.nio.ByteBuffer or any of its subclasses?

bytes->decimal clj

(bytes->decimal buffer-or-bytes precision scale)

Converts a byte array or ByteBuffer containing the two's-complement representation of an unscaled Integer value in big-endian byte order to a BigDecimal.

decimal->bytes clj

(decimal->bytes bd precision scale)

Converts a BigDecimal bd to a ByteBuffer containing the two's-complement representation of its underlying unscaled BigInteger value in big-endian byte order.

decimal->fixed clj

(decimal->fixed bd precision scale)

Converts a BigDecimal to a org.apache.avro.generic.GenericFixed containing the two's-complement representation of its underlying unscaled BigInteger value in big-endian byte order.

TODO FIXME not implemented

fixed->decimal clj

(fixed->decimal fixed precision scale)

Converts an org.apache.avro.generic.GenericFixed containing the two's-complement representation of an unscaled Integer value in big-endian byte order to a BigDecimal.

TODO FIXME not really implemented

s-conform-decimal clj

(s-conform-decimal precision scale bd)

Conforms the decimal? bd with precision and scale, returning :clojure.spec.alpha/invalid if unsuccessful.

This is the f in the call to clojure.spec.alpha/conformer.

NOTE you probably don't want to call this, use ->decimal-conformer instead.

set-precision clj

(set-precision bd precision)

Sets the precision of a BigDecimal bd.

set-scale clj

(set-scale bd scale)

Sets the scale of a BigDecimal bd.