Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

spring-roo/src/main/java/com/baeldung/domain/Book.java

@@ -0,0 +1,58 @@
+package com.baeldung.domain;
+import org.springframework.roo.addon.javabean.annotations.RooEquals;
+import org.springframework.roo.addon.javabean.annotations.RooJavaBean;
+import org.springframework.roo.addon.javabean.annotations.RooToString;
+import org.springframework.roo.addon.jpa.annotations.entity.RooJpaEntity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Version;
+import javax.validation.constraints.NotNull;
+
+/**
+ * = Book
+ TODO Auto-generated class documentation
+ *
+ */
+@RooJavaBean
+@RooToString
+@RooJpaEntity
+@RooEquals(isJpaEntity = true)
+public class Book {
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @Version
+    private Integer version;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String title;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String author;
+
+    /**
+     * TODO Auto-generated attribute documentation
+     *
+     */
+    @NotNull
+    private String isbn;
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_Equals.aj

@@ -0,0 +1,41 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+import java.util.Objects;
+
+privileged aspect Book_Roo_Equals {
+    
+    /**
+     * This `equals` implementation is specific for JPA entities and uses 
+     * the entity identifier for it, following the article in 
+     * https://vladmihalcea.com/2016/06/06/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
+     * 
+     * @param obj
+     * @return Boolean
+     */
+    public boolean Book.equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        // instanceof is false if the instance is null
+        if (!(obj instanceof Book)) {
+            return false;
+        }
+        return getId() != null && Objects.equals(getId(), ((Book) obj).getId());
+    }
+    
+    /**
+     * This `hashCode` implementation is specific for JPA entities and uses a fixed `int` value to be able 
+     * to identify the entity in collections after a new id is assigned to the entity, following the article in 
+     * https://vladmihalcea.com/2016/06/06/how-to-implement-equals-and-hashcode-using-the-jpa-entity-identifier/
+     * 
+     * @return Integer
+     */
+    public int Book.hashCode() {
+        return 31;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_JavaBean.aj

@@ -0,0 +1,100 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+
+privileged aspect Book_Roo_JavaBean {
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Long
+     */
+    public Long Book.getId() {
+        return this.id;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param id
+     */
+    public void Book.setId(Long id) {
+        this.id = id;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return Integer
+     */
+    public Integer Book.getVersion() {
+        return this.version;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param version
+     */
+    public void Book.setVersion(Integer version) {
+        this.version = version;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getTitle() {
+        return this.title;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param title
+     */
+    public void Book.setTitle(String title) {
+        this.title = title;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getAuthor() {
+        return this.author;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param author
+     */
+    public void Book.setAuthor(String author) {
+        this.author = author;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.getIsbn() {
+        return this.isbn;
+    }
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @param isbn
+     */
+    public void Book.setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_Jpa_Entity.aj

@@ -0,0 +1,28 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+import io.springlets.format.EntityFormat;
+import javax.persistence.Entity;
+
+privileged aspect Book_Roo_Jpa_Entity {
+    
+    declare @type: Book: @Entity;
+    
+    declare @type: Book: @EntityFormat;
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String Book.ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE = "The given Iterable of items to add can't be null!";
+    
+    /**
+     * TODO Auto-generated attribute documentation
+     * 
+     */
+    public static final String Book.ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE = "The given Iterable of items to add can't be null!";
+    
+}

spring-roo/src/main/java/com/baeldung/domain/Book_Roo_ToString.aj

@@ -0,0 +1,26 @@
+// WARNING: DO NOT EDIT THIS FILE. THIS FILE IS MANAGED BY SPRING ROO.
+// You may push code into the target .java compilation unit if you wish to edit any member(s).
+
+package com.baeldung.domain;
+
+import com.baeldung.domain.Book;
+
+privileged aspect Book_Roo_ToString {
+    
+    /**
+     * TODO Auto-generated method documentation
+     * 
+     * @return String
+     */
+    public String Book.toString() {
+        return "Book {" + 
+                "id='" + id + '\'' + 
+                ", version='" + version + '\'' + 
+                ", title='" + title + '\'' + 
+                ", author='" + author + '\'' + 
+                ", isbn='" + isbn + '\'' + 
+                ", ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE='" + ITERABLE_TO_ADD_CANT_BE_NULL_MESSAGE + '\'' + 
+                ", ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE='" + ITERABLE_TO_REMOVE_CANT_BE_NULL_MESSAGE + '\'' + "}" + super.toString();
+    }
+    
+}