We do use Spring and Lombok.
Option 1 - No prototype beans
@Component @RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class Consumer {
private final SomeDependency iDontNeed; // Consumer class doesn't need
private final SomeDependency2 iDontNeed2;
public void method() {
new Processor("some random per request data", iDontNeed, iDontNeed2);
}
....
@Value @RequiredArgsConstructor
public class Processor {
private final String perRequestInputData;
private final SomeDependency iReallyNeed;
private final SomeDependency2 iReallyNeed2;
}
Option 2 - Prototype beans
@Component @RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class Consumer {
private final Supplier<Processor> processorSupplier;
public void method() {
Processor p = processorSupplier.get();
p.initializeWith("some random per request data");
}
....
@Component @Scope("prototype")
@RequiredArgsConstructor(onConstructor = @__(@Autowired))
public class Processor {
private final SomeDependency iReallyNeed;
private final SomeDependency2 iReallyNeed2;
private String perRequestInputData; //wish I was final
private boolean initialized; //wish I was not needed
public void initializeWith(String perRequestInputData) {
Preconditions.checkState(!initialized);
this.perRequestInputData = perRequestInputData
}
}
Which options is the lesser evil and why? Please give some guidance on this.
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