## org.springframework.mock.web
Class MockExpressionEvaluator

    java.lang.Object
      javax.servlet.jsp.el.ExpressionEvaluator
          org.springframework.mock.web.MockExpressionEvaluator

    public class MockExpressionEvaluator

extends ExpressionEvaluator

Mock implementation of the JSP 2.0 `ExpressionEvaluator` interface, delegating to the Jakarta JSTL ExpressionEvaluatorManager.

Used for testing the web framework; only necessary for testing applications when testing custom JSP tags.

Note that the Jakarta JSTL implementation (jstl.jar, standard.jar) has to be available on the class path to use this expression evaluator.

Since:
  1.1.5
Author:
  Juergen Hoeller
See Also:
  `ExpressionEvaluatorManager`

Constructor Summary
`MockExpressionEvaluator(PageContext pageContext)` Create a new MockExpressionEvaluator for the given PageContext.

Method Summary
`protected Object` `doEvaluate(String expression, Class expectedType, FunctionMapper functionMapper)`
`Object` `evaluate(String expression, Class expectedType, VariableResolver variableResolver, FunctionMapper functionMapper)`
`Expression` `parseExpression(String expression, Class expectedType, FunctionMapper functionMapper)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### MockExpressionEvaluator

    public MockExpressionEvaluator(PageContext pageContext)

  Create a new MockExpressionEvaluator for the given PageContext.

  Parameters:
    `pageContext` - the JSP PageContext to run in

Method Detail

### parseExpression

    public Expression parseExpression(String expression,
                                      Class expectedType,
                                      FunctionMapper functionMapper)
                               throws ELException

  Specified by:
    `parseExpression` in class `ExpressionEvaluator`
  Throws:
    `ELException`

### evaluate

    public Object evaluate(String expression,
                           Class expectedType,
                           VariableResolver variableResolver,
                           FunctionMapper functionMapper)
                    throws ELException

  Specified by:
    `evaluate` in class `ExpressionEvaluator`
  Throws:
    `ELException`

### doEvaluate

    protected Object doEvaluate(String expression,
                                Class expectedType,
                                FunctionMapper functionMapper)
                         throws ELException

  Throws:
    `ELException`