Package com.sun.el.lang

Class ELSupport

  • Direct Known Subclasses:
    SimpleNode
    public class ELSupport
extends java.lang.Object
    A helper class that implements the EL Specification
    Version:
    $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: kchung $
    Author:
    Jacob Hookom [jacob@hookom.net], Kin-man Chung

    • Constructor Summary

      Constructors 
      Constructor Description
      ELSupport()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void checkType​(java.lang.Object obj, java.lang.Class<?> type)  
      static java.lang.Boolean coerceToBoolean​(java.lang.Object obj)  
      static java.lang.Character coerceToCharacter​(java.lang.Object obj)  
      static java.lang.Enum coerceToEnum​(java.lang.Object obj, java.lang.Class type)  
      protected static java.lang.Number coerceToNumber​(java.lang.Number number, java.lang.Class type)  
      static java.lang.Number coerceToNumber​(java.lang.Object obj)  
      static java.lang.Number coerceToNumber​(java.lang.Object obj, java.lang.Class type)  
      protected static java.lang.Number coerceToNumber​(java.lang.String val, java.lang.Class type)  
      static java.lang.String coerceToString​(java.lang.Object obj)  
      static java.lang.Object coerceToType​(java.lang.Object obj, java.lang.Class<?> type)  
      static java.lang.Object coerceToType​(java.lang.Object obj, java.lang.Class<?> type, boolean isEL22Compatible)  
      static int compare​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean containsNulls​(java.lang.Object[] obj)  
      static boolean equals​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isBigDecimalOp​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isBigIntegerOp​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isDoubleOp​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isDoubleStringOp​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isLongOp​(java.lang.Object obj0, java.lang.Object obj1)  
      static boolean isStringFloat​(java.lang.String str)  
      static void throwUnhandled​(java.lang.Object base, java.lang.Object property)  
      static java.lang.Number toFloat​(java.lang.String value)  
      static java.lang.Number toNumber​(java.lang.String value)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ELSupport

        public ELSupport()

    • Method Detail

      • throwUnhandled

        public static final void throwUnhandled​(java.lang.Object base,
                                        java.lang.Object property)
                                 throws javax.el.ELException
        Throws:
        javax.el.ELException

      • compare

        public static final int compare​(java.lang.Object obj0,
                                java.lang.Object obj1)
                         throws javax.el.ELException
        Parameters:
        obj0 - First object to be compared
        obj1 - Second object to be compared
        Returns:
        The result (an int with values -1, 0, or 1) of the comparison
        Throws:
        EvaluationException
        javax.el.ELException

      • equals

        public static final boolean equals​(java.lang.Object obj0,
                                   java.lang.Object obj1)
                            throws javax.el.ELException
        Parameters:
        obj0 - Fisrt object to be compared
        obj1 - Second object to be compared
        Returns:
        true if the objects compared equal
        Throws:
        EvaluationException
        javax.el.ELException

      • coerceToBoolean

        public static final java.lang.Boolean coerceToBoolean​(java.lang.Object obj)
                                               throws java.lang.IllegalArgumentException
        Parameters:
        obj - Object to be coerced
        Returns:
        The result of coercion
        Throws:
        java.lang.IllegalArgumentException

      • coerceToEnum

        public static final java.lang.Enum coerceToEnum​(java.lang.Object obj,
                                                java.lang.Class type)

      • coerceToCharacter

        public static final java.lang.Character coerceToCharacter​(java.lang.Object obj)
                                                   throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToNumber

        public static final java.lang.Number coerceToNumber​(java.lang.Object obj)

      • coerceToNumber

        protected static final java.lang.Number coerceToNumber​(java.lang.Number number,
                                                       java.lang.Class type)
                                                throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToNumber

        public static final java.lang.Number coerceToNumber​(java.lang.Object obj,
                                                    java.lang.Class type)
                                             throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToNumber

        protected static final java.lang.Number coerceToNumber​(java.lang.String val,
                                                       java.lang.Class type)
                                                throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToString

        public static final java.lang.String coerceToString​(java.lang.Object obj)
        Parameters:
        obj - Object to be coerced
        Returns:
        The result of coercion

      • checkType

        public static final void checkType​(java.lang.Object obj,
                                   java.lang.Class<?> type)
                            throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToType

        public static final java.lang.Object coerceToType​(java.lang.Object obj,
                                                  java.lang.Class<?> type)
                                           throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • coerceToType

        public static final java.lang.Object coerceToType​(java.lang.Object obj,
                                                  java.lang.Class<?> type,
                                                  boolean isEL22Compatible)
                                           throws java.lang.IllegalArgumentException
        Throws:
        java.lang.IllegalArgumentException

      • containsNulls

        public static final boolean containsNulls​(java.lang.Object[] obj)
        Parameters:
        obj - An array of objects
        Returns:
        true if the array contains a null, false otherwise

      • isBigDecimalOp

        public static final boolean isBigDecimalOp​(java.lang.Object obj0,
                                           java.lang.Object obj1)

      • isBigIntegerOp

        public static final boolean isBigIntegerOp​(java.lang.Object obj0,
                                           java.lang.Object obj1)

      • isDoubleOp

        public static final boolean isDoubleOp​(java.lang.Object obj0,
                                       java.lang.Object obj1)

      • isDoubleStringOp

        public static final boolean isDoubleStringOp​(java.lang.Object obj0,
                                             java.lang.Object obj1)

      • isLongOp

        public static final boolean isLongOp​(java.lang.Object obj0,
                                     java.lang.Object obj1)

      • isStringFloat

        public static final boolean isStringFloat​(java.lang.String str)

      • toFloat

        public static final java.lang.Number toFloat​(java.lang.String value)

      • toNumber

        public static final java.lang.Number toNumber​(java.lang.String value)