Interface JexlContext

All Known Implementing Classes:
MapContext, ObjectContext, ReadonlyContext, UnifiedJEXL.TemplateContext
public interface JexlContext
Manages variables which can be referenced in a JEXL expression.

Note that JEXL may use '$jexl' and '$ujexl' variables for internal purpose; setting or getting those variables may lead to unexpected results unless specified otherwise.

Since:
1.0
Version:
$Id: JexlContext.java 1202769 2011-11-16 16:33:02Z henrib $

  • Method Summary

    Modifier and Type
    Method
    Description
    Object
    get(String name)
    Gets the value of a variable.
    boolean
    has(String name)
    Checks whether a variable is defined in this context.
    void
    set(String name, Object value)
    Sets the value of a variable.

  • Method Details

    • get

      Object get(String name)
      Gets the value of a variable.
      Parameters:
      name - the variable's name
      Returns:
      the value

    • set

      void set(String name, Object value)
      Sets the value of a variable.
      Parameters:
      name - the variable's name
      value - the variable's value

    • has

      boolean has(String name)
      Checks whether a variable is defined in this context.

      A variable may be defined with a null value; this method checks whether the value is null or if the variable is undefined.

      Parameters:
      name - the variable's name
      Returns:
      true if it exists, false otherwise