Package javax.el

Class VariableMapper

java.lang.Object
javax.el.VariableMapper

public abstract class VariableMapper extends Object
The interface to a map between EL variables and the EL expressions they are associated with.
Since:
JSP 2.1
  • Constructor Details

    • VariableMapper

      public VariableMapper()
  • Method Details

    • resolveVariable

      public abstract ValueExpression resolveVariable(String variable)
      Parameters:
      variable - The variable name
      Returns:
      the ValueExpression assigned to the variable, null if there is no previous assignment to this variable.
    • setVariable

      public abstract ValueExpression setVariable(String variable, ValueExpression expression)
      Assign a ValueExpression to an EL variable, replacing any previously assignment to the same variable. The assignment for the variable is removed if the expression is null.
      Parameters:
      variable - The variable name
      expression - The ValueExpression to be assigned to the variable.
      Returns:
      The previous ValueExpression assigned to this variable, null if there is no previous assignment to this variable.