EnumBeanFactory for using beans of the same type.

APricePolicy.java

public APricePolicy implements PricePolicy {
    
    @OOverride
    public void apply(PolicyInfo policyInfo) {
        // implements logic..
    }
        
}

Client.java

@Service
@RequiredArgsConstructor
public class Client {
    private final EnumBeanFactory enumBeanFactory;
    
    public void process(PolicyInfo policyInfo) {
        // ..
        enumBeanFactory.getBean(PricePolicyType.A).apply(policyInfo);
        // or
        enumBeanFactory.getBean(PricePolicyType.B).apply(policyInfo);
        // or
        enumBeanFactory.getBean(PricePolicyType.C).apply(policyInfo);
        // ..
    }
}

EnumBeanAble.java

public interface EnumBeanAble<T> {

    Class<? extends T> serviceClass();
}

EnumBeanFactory.java

@Service
@RequiredArgsConstructor
public class EnumBeanFactory {

    private final ApplicationContext applicationContext;

    public <T> T getBean(EnumBeanAble<T> e) {
        return applicationContext.getBean(e.serviceClass());
    }
}

PolicyType.java

@RequiredArgsConstructor
public enum PricePolicyType implements EnumBeanAble<PricePolicy> {
    A(APricePolicy.class),
    B(BPricePolicy.class),
    C(CPricePolicy.class);

    private final Class<? extends PricePolicy> serviceClass;

    @Override
    public Class<? extends PricePolicy> serviceClass() {
        return serviceClass;
    }
}

PricePolicy.java

public interface PricePolicy {

    void apply(PolicyInfo policyInfo);
}