This a simple strategy for storing BigDecimal in the datastore. BigDecimalLongConverter multiplies by a fixed factor and stores the result as a Long. This is appropriate for monetary and other (relatively) small values with fixed decimal precision.
This is one possible strategy and not appropriate for all uses of BigDecimal - especially very large values which cannot fit in a Long. For this reason, the converter is not installed by default. You can Install this converter at the same time you perform registration:
ObjectifyService.factory().getTranslators().add(new BigDecimalLongTranslatorFactory());
The default factor of 1,000 is good for currency, which usually has 0-3 digits of precision past the decimal point. But you can pick any other factor appropriate to your application.
@author Jeff Schnitzer | |