Variable

java.lang.Object

Behavioral.Interpreter.Variable

All Implemented Interfaces:: Expression

public final class Variable extends Object implements Expression

Terminal expression representing a variable lookup in the interpreter pattern. Implements the Expression interface.

Constructor Summary

Constructors

Constructor

Description

Variable(String name)

Constructs a Variable expression with the specified variable name.
Method Summary

Modifier and Type

Method

Description

boolean

interpret(Map<String,Boolean> ctx)

Interprets the variable expression by looking up its value in the provided context.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- Variable
  
  public Variable(String name)
  
  Constructs a Variable expression with the specified variable name.
  
  Parameters:
  
  name - the name of the variable
Method Details
- interpret
  
  public boolean interpret(Map<String,Boolean> ctx)
  
  Interprets the variable expression by looking up its value in the provided context.
  
  Specified by:
  
  interpret in interface Expression
  
  Parameters:
  
  ctx - the context map containing variable bindings
  
  Returns:
  
  the boolean value of the variable
  
  Throws:
  
  IllegalStateException - if the variable is not found in the context