Ja-Jakarta
Translation

javax.servlet.jsp.el
クラス Expression

java.lang.Object
  上位を拡張 javax.servlet.jsp.el.Expression

public abstract class Expression
extends java.lang.Object

The abstract class for a prepared expression.

An instance of an Expression can be obtained via from an ExpressionEvaluator instance.

An Expression may or not have done a syntactic parse of the expression. A client invoking the evaluate() method should be ready for the case where ELParseException exceptions are raised.

導入されたバージョン:
2.0

コンストラクタの概要
Expression()
           
 
メソッドの概要
abstract  java.lang.Object evaluate(VariableResolver vResolver)
          Evaluates an expression that was previously prepared.
 
クラス java.lang.Object から継承されたメソッド
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

コンストラクタの詳細

Expression

public Expression()
メソッドの詳細

evaluate

public abstract java.lang.Object evaluate(VariableResolver vResolver)
                                   throws ELException
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.

パラメータ:
vResolver - A VariableResolver instance that can be used at runtime to resolve the name of implicit objects into Objects.
戻り値:
The result of the expression evaluation.
例外:
ELException - Thrown if the expression evaluation failed.

Ja-Jakarta
Translation

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