Common

This module contains events shared between command side and query side. Also it has a utility class to generate UUID which will be used as key for events.

The Utils.java is very simple and it is included just to ensure that the common is self-contained without too many dependencies.

package com.networknt.tram.todolist.common;


import java.util.UUID;

public class Utils {
  public static String generateUniqueString() {
    return UUID.randomUUID().toString();
  }
}

The following are three domain events class that implement DomainEvent interface.

TodoCreated.java

package com.networknt.tram.todolist.common;


import com.networknt.tram.event.common.DomainEvent;

public class TodoCreated implements DomainEvent {

  private String title;

  private boolean completed;

  private int executionOrder;

  public TodoCreated() {
  }

  public TodoCreated(String title, boolean completed, int executionOrder) {
    this.title = title;
    this.completed = completed;
    this.executionOrder = executionOrder;
  }

  public String getTitle() {
    return title;
  }

  public void setTitle(String title) {
    this.title = title;
  }

  public boolean isCompleted() {
    return completed;
  }

  public void setCompleted(boolean completed) {
    this.completed = completed;
  }

  public int getExecutionOrder() {
    return executionOrder;
  }

  public void setExecutionOrder(int executionOrder) {
    this.executionOrder = executionOrder;
  }
}

TodoDeleted.java

package com.networknt.tram.todolist.common;


import com.networknt.tram.event.common.DomainEvent;

public class TodoDeleted implements DomainEvent {
}

TodoUpdated.java

package com.networknt.tram.todolist.common;


import com.networknt.tram.event.common.DomainEvent;

public class TodoUpdated implements DomainEvent {

  private String title;

  private boolean completed;

  private int executionOrder;

  public TodoUpdated() {
  }

  public TodoUpdated(String title, boolean completed, int executionOrder) {
    this.title = title;
    this.completed = completed;
    this.executionOrder = executionOrder;
  }

  public String getTitle() {
    return title;
  }

  public void setTitle(String title) {
    this.title = title;
  }

  public boolean isCompleted() {
    return completed;
  }

  public void setCompleted(boolean completed) {
    this.completed = completed;
  }

  public int getExecutionOrder() {
    return executionOrder;
  }

  public void setExecutionOrder(int executionOrder) {
    this.executionOrder = executionOrder;
  }
}

As you can see these are just POJO and DomainEvent doesn’t have any method but just and identifier.

The next step, we are going to walk through command side common components.

“Common” was last updated: April 2, 2019: fixes #62 add Chinese language for the document site (5c820aa)
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