Package org.apache.commons.jxpath

Class BasicVariables

  • All Implemented Interfaces:
    java.io.Serializable, Variables
    public class BasicVariables
extends java.lang.Object
implements Variables
    A basic implementation of the Variables interface that uses a HashMap.
    Version:
    $Revision: 652925 $ $Date: 2008-05-02 17:05:41 -0500 (Fri, 02 May 2008) $
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static long serialVersionUID  
      private java.util.HashMap vars
      Contains the values of declared variables

    • Constructor Summary

      Constructors 
      Constructor Description
      BasicVariables()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void declareVariable​(java.lang.String varName, java.lang.Object value)
      Defines a new variable with the specified value or modifies the value of an existing variable.
      java.lang.Object getVariable​(java.lang.String varName)
      Returns the value of the variable if it is defined, otherwise, throws IllegalArgumentException
      boolean isDeclaredVariable​(java.lang.String varName)
      Returns true if the variable has been defined, even if the value of the variable is null.
      java.lang.String toString()  
      void undeclareVariable​(java.lang.String varName)
      Removes an existing variable.

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • vars

        private java.util.HashMap vars
        Contains the values of declared variables

    • Constructor Detail

      • BasicVariables

        public BasicVariables()

    • Method Detail

      • isDeclaredVariable

        public boolean isDeclaredVariable​(java.lang.String varName)
        Returns true if the variable has been defined, even if the value of the variable is null.
        Specified by:
        isDeclaredVariable in interface Variables
        Parameters:
        varName - is a variable name without the "$" sign
        Returns:
        true if the variable is declared

      • getVariable

        public java.lang.Object getVariable​(java.lang.String varName)
        Returns the value of the variable if it is defined, otherwise, throws IllegalArgumentException
        Specified by:
        getVariable in interface Variables
        Parameters:
        varName - is a variable name without the "$" sign
        Returns:
        the value of the variable

      • declareVariable

        public void declareVariable​(java.lang.String varName,
                            java.lang.Object value)
        Defines a new variable with the specified value or modifies the value of an existing variable.
        Specified by:
        declareVariable in interface Variables
        Parameters:
        varName - is a variable name without the "$" sign
        value - is the new value for the variable, which can be null

      • undeclareVariable

        public void undeclareVariable​(java.lang.String varName)
        Removes an existing variable. May throw UnsupportedOperationException.
        Specified by:
        undeclareVariable in interface Variables
        Parameters:
        varName - is a variable name without the "$" sign

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object