Package com.brodygaudel.bank.query.service.customer

Class CustomerQueryHandlerService

java.lang.Object

com.brodygaudel.bank.query.service.customer.CustomerQueryHandlerService

@Service
public class CustomerQueryHandlerService
extends Object

Service class for handling customer-related queries and providing query responses.

Constructor Summary

Constructors

Constructor	Description
CustomerQueryHandlerService(CustomerRepository customerRepository, Mappers mappers)	Constructs a CustomerQueryHandlerService with the specified CustomerRepository and Mappers instance.

Method Summary

Modifier and Type	Method	Description
List<CustomerResponseDTO>	on(@NotNull GetAllCustomersQuery query)	Handles the GetAllCustomersQuery by retrieving and mapping all customers.
CustomerResponseDTO	on(@NotNull GetCustomerByIdQuery query)	Handles the GetCustomerByIdQuery by retrieving and mapping a customer's details by ID.
List<CustomerResponseDTO>	on(@NotNull SearchCustomersQuery query)	Handles the SearchCustomersQuery by performing a keyword search and mapping the results.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CustomerQueryHandlerService

public CustomerQueryHandlerService(CustomerRepository customerRepository,
 Mappers mappers)

Constructs a CustomerQueryHandlerService with the specified CustomerRepository and Mappers instance.

Parameters:

customerRepository - The repository for retrieving customer data.

mappers - The mapper utility for converting entities to DTOs.

Method Details

on

@QueryHandler
public CustomerResponseDTO on(@NotNull
 @NotNull GetCustomerByIdQuery query)

Handles the GetCustomerByIdQuery by retrieving and mapping a customer's details by ID.

Parameters:

query - The GetCustomerByIdQuery to handle.

Returns:

A CustomerResponseDTO containing the details of the requested customer.

Throws:

CustomerNotFoundException - if no customer with the given ID is found.

on

@QueryHandler
public List<CustomerResponseDTO> on(@NotNull
 @NotNull SearchCustomersQuery query)

Handles the SearchCustomersQuery by performing a keyword search and mapping the results.

Parameters:

query - The SearchCustomersQuery to handle.

Returns:

A list of CustomerResponseDTO objects matching the search criteria.

on

@QueryHandler
public List<CustomerResponseDTO> on(@NotNull
 @NotNull GetAllCustomersQuery query)

Handles the GetAllCustomersQuery by retrieving and mapping all customers.

Parameters:

query - The GetAllCustomersQuery to handle.

Returns:

A list of CustomerResponseDTO objects representing all customers.