Package org.outerj.expression

Examples of org.outerj.expression.Expression.evaluate()

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    public Object evaluate(ExpressionContext context) throws ExpressionException {
        BigDecimal result = new BigDecimal("0");
        for(int i = 0; i < arguments.size(); i++) {
            Expression function = (Expression)arguments.get(i);
            Object ret = function.evaluate(context);
            if (ret instanceof Collection) {
                ret = ((Collection)ret).iterator();
            }
            if (ret instanceof Iterator) {
               Iterator iter = (Iterator)ret;
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                       throw new IllegalArgumentException("Cannot sum an argument of type " + p.getClass().getName());
                   }
                   result = result.add(db);
               }
            } else {
                result = result.add((BigDecimal)function.evaluate(context));
            }
        }
        return result;       
    }
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