Package org.zkoss.zkmax.xel.el

Class ApacheELFactory

  • All Implemented Interfaces:
    org.zkoss.xel.ExpressionFactory
    public class ApacheELFactory
extends java.lang.Object
implements org.zkoss.xel.ExpressionFactory
    An implementation that is based on Apache commons-el: org.apache.commons.el.ExpressionEvaluatorImpl.

    Available in ZK EE

    The org.zkoss.xel.el.ELFactory class is recommended since the implementation it encapsulates has the better performance.

    Since:
    3.0.0
    Author:
    tomyeh

    • Field Summary

      • Fields inherited from interface org.zkoss.xel.ExpressionFactory

        FEATURE_CLASS, FEATURE_FUNCTION

    • Constructor Summary

      Constructors 
      Constructor Description
      ApacheELFactory()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object evaluate​(org.zkoss.xel.XelContext xelc, java.lang.String expression, java.lang.Class expectedType)  
      boolean isSupported​(int feature)  
      protected jakarta.servlet.jsp.el.ExpressionEvaluator newExpressionEvaluator()
      Returns the EL expression factory.
      org.zkoss.xel.Expression parseExpression​(org.zkoss.xel.XelContext xelc, java.lang.String expression, java.lang.Class expectedType)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ApacheELFactory

        public ApacheELFactory()

    • Method Detail

      • isSupported

        public boolean isSupported​(int feature)
        Specified by:
        isSupported in interface org.zkoss.xel.ExpressionFactory

      • parseExpression

        public org.zkoss.xel.Expression parseExpression​(org.zkoss.xel.XelContext xelc,
                                                java.lang.String expression,
                                                java.lang.Class expectedType)
                                         throws org.zkoss.xel.XelException
        Specified by:
        parseExpression in interface org.zkoss.xel.ExpressionFactory
        Throws:
        org.zkoss.xel.XelException

      • evaluate

        public java.lang.Object evaluate​(org.zkoss.xel.XelContext xelc,
                                 java.lang.String expression,
                                 java.lang.Class expectedType)
                          throws org.zkoss.xel.XelException
        Specified by:
        evaluate in interface org.zkoss.xel.ExpressionFactory
        Throws:
        org.zkoss.xel.XelException

      • newExpressionEvaluator

        protected jakarta.servlet.jsp.el.ExpressionEvaluator newExpressionEvaluator()
        Returns the EL expression factory.

        Default: Use org.apache.commons.el.ExpressionEvaluatorImpl.

        You might override it to use a different implementation.