ExpressionImpl (Apache Tomcat 10.1.57 API Documentation)
Description: declaration: package: org.apache.jasper.el, class: ExpressionImpl

# Class ExpressionImpl

java.lang.Object
jakarta.servlet.jsp.el.Expression
org.apache.jasper.el.ExpressionImpl

@Deprecated public final class ExpressionImpl extends Expression
Deprecated.

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `ExpressionImpl(ValueExpression ve, ExpressionFactory factory)`
  Deprecated.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `Object`
  `evaluate(VariableResolver vResolver)`
  Deprecated.
  Evaluates an expression that was previously prepared.

  ### Methods inherited from class Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### ExpressionImpl

    public ExpressionImpl(ValueExpression ve, ExpressionFactory factory)
    Deprecated.

- ## Method Details

  - ### evaluate

    public Object evaluate(VariableResolver vResolver) throws ELException
    Deprecated.
    Description copied from class: `jakarta.servlet.jsp.el.Expression`
    Evaluates an expression that was previously prepared. In some implementations preparing an expression involves full syntactic validation, but others may not do so. Evaluating the expression may raise an ELParseException as well as other ELExceptions due to run-time evaluation.
    Specified by:
      `evaluate` in class `Expression`
    Parameters:
      `vResolver` - A VariableResolver instance that can be used at runtime to resolve the name of implicit objects into Objects.
    Returns:
      The result of the expression evaluation.
    Throws:
      `ELException` - Thrown if the expression evaluation failed.