public abstract class Expression
extends Object 

Since:

JSP 2.0

• Constructor Summary

  Constructors

  Constructor and Description
  Expression () Deprecated.

• Method Summary

  All Methods

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

  • Methods inherited from class java.lang.Object

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

• Constructor Detail

  • Expression

    public Expression()

    Deprecated.

• Method Detail

  • evaluate

    public abstract Object evaluate(VariableResolver vResolver)
     throws ELException 

    Deprecated.
    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.

    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.