Class MapContext

java.lang.Object
org.apache.commons.jexl3.MapContext
All Implemented Interfaces:
JexlContext

public class MapContext extends Object implements JexlContext
Wraps a map in a context.

Each entry in the map is considered a variable name, value pair.

  • Constructor Details

    • MapContext

      public MapContext()
      Creates a MapContext on an automatically allocated underlying HashMap.
    • MapContext

      public MapContext(Map<String,Object> vars)
      Creates a MapContext wrapping an existing user provided map.
      Parameters:
      vars - the variable map
  • Method Details

    • clear

      public void clear()
      Clears all variables.
    • get

      public Object get(String name)
      Description copied from interface: JexlContext
      Gets the value of a variable.
      Specified by:
      get in interface JexlContext
      Parameters:
      name - the variable's name
      Returns:
      the value
    • has

      public boolean has(String name)
      Description copied from interface: JexlContext
      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.

      Specified by:
      has in interface JexlContext
      Parameters:
      name - the variable's name
      Returns:
      true if it exists, false otherwise
    • set

      public void set(String name, Object value)
      Description copied from interface: JexlContext
      Sets the value of a variable.
      Specified by:
      set in interface JexlContext
      Parameters:
      name - the variable's name
      value - the variable's value