Class BasicVariables

java.lang.Object
org.apache.commons.jxpath.BasicVariables
All Implemented Interfaces:
Serializable, Variables
public class BasicVariables extends 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) $
Author:
Dmitri Plotnikov
See Also:

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      See Also:

    • vars

      private HashMap vars
      Contains the values of declared variables

  • Constructor Details

    • BasicVariables

      public BasicVariables()

  • Method Details

    • isDeclaredVariable

      public boolean isDeclaredVariable(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 Object getVariable(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(String varName, 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(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 String toString()
      Overrides:
      toString in class Object