chsnged state class to record

Author: darkhyper24

bloc/src/main/java/com/iluwatar/bloc/Bloc.java

@@ -68,13 +68,13 @@ private void emitState(State newState) {
    * Increments the current state value by 1 and notifies listeners of the change.
    */
   public void increment() {
-    emitState(new State(currentState.getValue() + 1));
+    emitState(new State(currentState.value() + 1));
   }
 
   /**
    * Decrements the current state value by 1 and notifies listeners of the change.
    */
   public void decrement() {
-    emitState(new State(currentState.getValue() - 1));
+    emitState(new State(currentState.value() - 1));
   }
 }

bloc/src/main/java/com/iluwatar/bloc/BlocUi.java

@@ -41,7 +41,7 @@ public void createAndShowUi() {
     frame.add(toggleListenerButton, BorderLayout.EAST);
 
     // making a state listener to update the counter label when the state changes
-    StateListener<State> stateListener = state -> counterLabel.setText("Counter: " + state.getValue());
+    StateListener<State> stateListener = state -> counterLabel.setText("Counter: " + state.value());
 
     // adding the listener to the Bloc instance
     bloc.addListener(stateListener);

bloc/src/main/java/com/iluwatar/bloc/State.java

@@ -1,27 +1,8 @@
 package com.iluwatar.bloc;
 
-import lombok.Getter;
-
 /**
  * The {@code State} class represents a state with an integer value.
  * This class encapsulates the value and provides methods to retrieve it.
  */
-@Getter
-public class State {
-  /**
-   * -- GETTER --
-   *  Returns the value of the state.
-   *
-   */
-  private final int value;
-
-  /**
-   * Constructs a {@code State} with the specified value.
-   *
-   * @param value the value of the state
-   */
-  public State(int value) {
-    this.value = value;
-  }
-
-}
+public record State(int value) {
+}

bloc/src/test/java/com/iluwatar/bloc/BlocTest.java

@@ -19,14 +19,14 @@ void initialState() {
 
   @Test
   void IncrementUpdateState() {
-    bloc.addListener(state -> stateValue.set(state.getValue()));
+    bloc.addListener(state -> stateValue.set(state.value()));
     bloc.increment();
     assertEquals(1, stateValue.get(), "State should increment to 1");
   }
 
   @Test
   void DecrementUpdateState() {
-    bloc.addListener(state -> stateValue.set(state.getValue()));
+    bloc.addListener(state -> stateValue.set(state.value()));
     bloc.decrement();
     assertEquals(-1, stateValue.get(), "State should decrement to -1");
   }
@@ -47,8 +47,8 @@ void removingListener() {
   @Test
   void multipleListeners() {
     AtomicInteger secondValue = new AtomicInteger();
-    bloc.addListener(state -> stateValue.set(state.getValue()));
-    bloc.addListener(state -> secondValue.set(state.getValue()));
+    bloc.addListener(state -> stateValue.set(state.value()));
+    bloc.addListener(state -> secondValue.set(state.value()));
     bloc.increment();
     assertEquals(1, stateValue.get(), "First listener should receive state 1.");
     assertEquals(1, secondValue.get(), "Second listener should receive state 1.");

bloc/src/test/java/com/iluwatar/bloc/BlocUiTest.java

@@ -40,7 +40,7 @@ public void setUp() {
     frame.add(decrementButton, BorderLayout.SOUTH);
     frame.add(toggleListenerButton, BorderLayout.EAST);
 
-    stateListener = state -> counterLabel.setText("Counter: " + state.getValue());
+    stateListener = state -> counterLabel.setText("Counter: " + state.value());
     bloc.addListener(stateListener);
 
     incrementButton.addActionListener(e -> bloc.increment());