Spring 5 Design Patterns

The Template Design pattern in Spring

Let's see how to go about using the Template Design pattern in spring:

• Define the outline or skeleton of an algorithm

1. Leave the details for specific implementations until later.
2. Hide away large amounts of boilerplate code.

• Spring provides many template classes:
• JdbcTemplate
• JmsTemplate
• RestTemplate
• WebServiceTemplate
• Most hide low-level resource management

Let's look at the same code that we used earlier with Spring's JdbcTemplate and how it removes the boilerplate code.

Use JdbcTemplates to let your code the focus on the task:

 public Account getAccountById(long id) { return jdbcTemplate.queryForObject( "select id, name, amoount" + "from account where id=?", new RowMapper<Account>() { public Account ...