InitOperators function creates a new StrategyOperators struct with the db instance and info about tokens provided.

ANDTag constant contains the string that identifies the AND operator.

ORTag constant contains the string that identifies the OR operator.

ValidOperators variable contains the information of the supported operators.

ValidOperatorsTags variable contains the supported operator tags.

StrategyIteration struct represents the data that is passed to the operators in every iteration of the evaluation process.

StrategyOperators struct represents a custom set of predicate operators associated with a SQL database as data source.

TokenInformation struct represents the information of a token that is used by strategy operators in a predicate evaluation.