Represents boolean constants such as NULL, NOTNULL, TRUE, and FALSE.
ExtendsConverts the patio.sql.BooleanConstant to a string.
Argumentsdataset used to created the SQL fragment, if the dataset is ommited then the default patio.Dataset implementation is used.
String the SQL version of the patio.sql.BooleanConstant.
function (ds){
!Dataset && (Dataset = require("./dataset"));
ds = ds || new Dataset();
return ds.booleanConstantSql(this.__constant);
}