Examples of javax.servlet.jsp.el.ExpressionEvaluator.parseExpression()

Class javax.servlet.jsp.el.ExpressionEvaluator

Examples of javax.servlet.jsp.el.ExpressionEvaluator.parseExpression()

javax.servlet.jsp.el.ExpressionEvaluator.parseExpression()
Prepare an expression for later evaluation. This method should perform syntactic validation of the expression; if in doing so it detects errors, it should raise an ELParseException. @param expression The expression to be evaluated. @param expectedType The expected type of the result of the evaluation @param fMapper A FunctionMapper to resolve functions found in the expression. It can be null, in which case no functions are supported for this invocation. The ExpressionEvaluator must not hold on to the FunctionMapper reference after returning from parseExpression(). The Expression object returned must invoke the same functions regardless of whether the mappings in the provided FunctionMapper instance change between calling ExpressionEvaluator.parseExpression() and Expression.evaluate(). @return The Expression object encapsulating the arguments. @exception ELException Thrown if parsing errors were found.

    StringBuffer s = new StringBuffer();
    s.append("${");
    s.append(test);
    s.append("}");
    try {
      expression = evaluator.parseExpression(s.toString(), Boolean.class, this);
    } catch (Exception e) {
      throw new ConfigException("Parse error in '" + test + "'", e);
    }
  }

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      StringBuffer s = new StringBuffer();
      s.append("${");
      s.append(relax);
      s.append("}");
      try {
        relaxExpression = evaluator.parseExpression(s.toString(), Boolean.class, this);
      } catch (Exception e) {
        throw new ConfigException("Parse error in '" + relax + "'", e);
      }
    }
    if (ignore != null) {

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      StringBuffer s = new StringBuffer();
      s.append("${");
      s.append(ignore);
      s.append("}");
      try {
        ignoreExpression = evaluator.parseExpression(s.toString(), Boolean.class, this);
      } catch (Exception e) {
        throw new ConfigException("Parse error in '" + ignore + "'", e);
      }
    }
  }

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                ExpressionEvaluator evaluator = getEvaluator();
                if (evaluator == null) return;


                // If this turns out to be slow we could probably cache the parsed expression
                String expression = validationInfo.expression();
                expr = evaluator.parseExpression(expression, Boolean.class, null);
                resolver = new BeanVariableResolver(bean);
            }
            catch (ELException ele) {
                throw new StripesRuntimeException(
                        "Could not parse the EL expression being used to validate field " +

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                ExpressionEvaluator evaluator = getEvaluator();
                if (evaluator == null) return;


                // If this turns out to be slow we could probably cache the parsed expression
                String expression = validationInfo.expression();
                expr = evaluator.parseExpression(expression, Boolean.class, null);
                resolver = new BeanVariableResolver(bean);
            }
            catch (ELException ele) {
                throw new StripesRuntimeException(
                        "Could not parse the EL expression being used to validate field " +

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