Introduction to BangDB

BangDB is a high-performance, converged NoSQL database designed to handle big data workloads, provide complex analytics, and offer seamless integration with other enterprise systems. In this blog post, we will explore various BangDB APIs with practical code snippets to help you understand its capabilities more effectively.

Connecting to BangDB

First, let’s start by establishing a connection to BangDB using the BangDBClient class:

  
    BangDBClient client = new BangDBClient("127.0.0.1", 10101);
  

Creating a Table

Creating a table in BangDB is straightforward:

  
    BangDBTable table = client.createTable("my_table");
  

Inserting Data

You can insert data into the table using the insert method:

  
    table.insert("key1", "value1");
  

Updating Data

Update data with the update method:

  
    table.update("key1", "new_value");
  

Deleting Data

Delete data from the table using the delete method:

  
    table.delete("key1");
  

Retrieving Data

Retrieve data using the get method:

  
    String value = table.get("key1");
    System.out.println("Retrieved Value: " + value);
  

Advanced Querying

Perform complex queries using find and scan methods:

  
    ResultSet rs = table.find("key*", "startKey", "endKey");
    while (rs.next()) {
        System.out.println("Key: " + rs.getKey() + ", Value: " + rs.getValue());
    }
  

Concurrency and Transactions

Manage concurrent operations using transactions:

  
    client.beginTransaction();
    table.insert("key2", "value2");
    table.update("key2", "updated_value2");
    client.commitTransaction();
  

Application Example

Let’s create an application that incorporates some of the APIs discussed above:

  
    public class BangDBExample {

        public static void main(String[] args) {
            BangDBClient client = new BangDBClient("127.0.0.1", 10101);
            BangDBTable table = client.createTable("example_table");
            
            client.beginTransaction();
            
            table.insert("name", "John Doe");
            table.insert("email", "john@example.com");
            
            String name = table.get("name");
            String email = table.get("email");
            
            System.out.println("Name: " + name);
            System.out.println("Email: " + email);
            
            table.update("email", "john.doe@example.com");
            client.commitTransaction();
            
            String updatedEmail = table.get("email");
            System.out.println("Updated Email: " + updatedEmail);
            
            table.delete("name");
            table.delete("email");
            
            client.close();
        }
    }
  

In this example, we create a new table named “example_table”, insert some data, retrieve and update the data, and finally delete it – all encapsulated within a transaction.

BangDB’s versatility and high performance make it an excellent choice for modern big data applications. We hope this guide provides a helpful introduction to its features and API usage.

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