Package com.aquima.interactions.expressions

Class ExpressionFixer

java.lang.Object
com.aquima.interactions.expressions.ExpressionFixer
public class ExpressionFixer extends Object
This class rewrites decision condition alternative expressions to full expressions which are parsable by the 4.2 expression parser.
Since:
5.0
Author:
O. Kerpershoek, F. van der Meer

  • Constructor Details

    • ExpressionFixer

      public ExpressionFixer(boolean useBexprOpr)
      Constructs the decision table expression fixer with a boolean indicating if the expressions should be fixed for a release 4 parser. As the release 4 parser does not allow a compare (=, !=) between boolean expressions, a special keyword (BEQ, BNE) is used for these type of comparisons.
      Parameters:
      useBexprOpr - Boolean indicating if expressions should be fixed for a release 4 parser.

  • Method Details

    • parse

      public String parse(String lhs, String expression)
      This method rewrites a 4.2 syntax expression used in decision tables, to an expression that is valid in the 5.0 syntax. The 4.2 syntax allows for incomplete expressions to be evaluated with a left-hand-side value, which is inserted at 'appropriate' points in the expression.
      For example: The expression '< 4 AND > 7' with an LHS value of 'X', will be rewritten to the expression 'X < 4 AND X > 7'
      Parameters:
      lhs - The left-hand-side value which should be used in the partial 4.2 expression.
      expression - The partial 4.2 expression that needs to be rewritten.
      Returns:
      Complete expression combining the LHS value and the partial expression.

    • parseWithDeclarations

      public String parseWithDeclarations(String lhs, String expression)

    • indexOfDeclarationEnd

      public Integer indexOfDeclarationEnd(String expression)