mirror of
https://github.com/tiennm99/java-design-patterns.git
synced 2026-05-14 20:58:35 +00:00
deps: Refactor dependencies (#3224)
* remove spring dep move junit, logging, mockito under dep mgmt * upgrade anti-corruption-layer deps * async method invocation * balking, bloc * bridge to bytecode * caching * callback - cqrs * component - health check * hexagonal - metadata mapping * rest of the patterns * remove checkstyle, take spotless into use
This commit is contained in:
@@ -39,22 +39,22 @@ import lombok.extern.slf4j.Slf4j;
|
||||
* customer-specific roles is provided by {@link CustomerRole}, which also supports the {@link
|
||||
* Customer} interface.
|
||||
*
|
||||
* <p>The {@link CustomerRole} class is abstract and not meant to be instantiated.
|
||||
* Concrete subclasses of {@link CustomerRole}, for example {@link BorrowerRole} or {@link
|
||||
* InvestorRole}, define and implement the interface for specific roles. It is only these subclasses
|
||||
* which are instantiated at runtime. The {@link BorrowerRole} class defines the context-specific
|
||||
* view of {@link Customer} objects as needed by the loan department. It defines additional
|
||||
* operations to manage the customer’s credits and securities. Similarly, the {@link InvestorRole}
|
||||
* class adds operations specific to the investment department’s view of customers. A client like
|
||||
* the loan application may either work with objects of the {@link CustomerRole} class, using the
|
||||
* interface class {@link Customer}, or with objects of concrete {@link CustomerRole} subclasses.
|
||||
* Suppose the loan application knows a particular {@link Customer} instance through its {@link
|
||||
* Customer} interface. The loan application may want to check whether the {@link Customer} object
|
||||
* plays the role of Borrower. To this end it calls {@link Customer#hasRole(Role)} with a suitable
|
||||
* role specification. For the purpose of our example, let’s assume we can name roles with enum. If
|
||||
* the {@link Customer} object can play the role named “Borrower,” the loan application will ask it
|
||||
* to return a reference to the corresponding object. The loan application may now use this
|
||||
* reference to call Borrower-specific operations.
|
||||
* <p>The {@link CustomerRole} class is abstract and not meant to be instantiated. Concrete
|
||||
* subclasses of {@link CustomerRole}, for example {@link BorrowerRole} or {@link InvestorRole},
|
||||
* define and implement the interface for specific roles. It is only these subclasses which are
|
||||
* instantiated at runtime. The {@link BorrowerRole} class defines the context-specific view of
|
||||
* {@link Customer} objects as needed by the loan department. It defines additional operations to
|
||||
* manage the customer’s credits and securities. Similarly, the {@link InvestorRole} class adds
|
||||
* operations specific to the investment department’s view of customers. A client like the loan
|
||||
* application may either work with objects of the {@link CustomerRole} class, using the interface
|
||||
* class {@link Customer}, or with objects of concrete {@link CustomerRole} subclasses. Suppose the
|
||||
* loan application knows a particular {@link Customer} instance through its {@link Customer}
|
||||
* interface. The loan application may want to check whether the {@link Customer} object plays the
|
||||
* role of Borrower. To this end it calls {@link Customer#hasRole(Role)} with a suitable role
|
||||
* specification. For the purpose of our example, let’s assume we can name roles with enum. If the
|
||||
* {@link Customer} object can play the role named “Borrower,” the loan application will ask it to
|
||||
* return a reference to the corresponding object. The loan application may now use this reference
|
||||
* to call Borrower-specific operations.
|
||||
*/
|
||||
@Slf4j
|
||||
public class ApplicationRoleObject {
|
||||
@@ -74,20 +74,23 @@ public class ApplicationRoleObject {
|
||||
var hasInvestorRole = customer.hasRole(INVESTOR);
|
||||
LOGGER.info("Customer has an investor role - {}", hasInvestorRole);
|
||||
|
||||
customer.getRole(INVESTOR, InvestorRole.class)
|
||||
.ifPresent(inv -> {
|
||||
inv.setAmountToInvest(1000);
|
||||
inv.setName("Billy");
|
||||
});
|
||||
customer.getRole(BORROWER, BorrowerRole.class)
|
||||
.ifPresent(inv -> inv.setName("Johny"));
|
||||
customer
|
||||
.getRole(INVESTOR, InvestorRole.class)
|
||||
.ifPresent(
|
||||
inv -> {
|
||||
inv.setAmountToInvest(1000);
|
||||
inv.setName("Billy");
|
||||
});
|
||||
customer.getRole(BORROWER, BorrowerRole.class).ifPresent(inv -> inv.setName("Johny"));
|
||||
|
||||
customer.getRole(INVESTOR, InvestorRole.class)
|
||||
customer
|
||||
.getRole(INVESTOR, InvestorRole.class)
|
||||
.map(InvestorRole::invest)
|
||||
.ifPresent(LOGGER::info);
|
||||
|
||||
customer.getRole(BORROWER, BorrowerRole.class)
|
||||
customer
|
||||
.getRole(BORROWER, BorrowerRole.class)
|
||||
.map(BorrowerRole::borrow)
|
||||
.ifPresent(LOGGER::info);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user