Builder Pattern
public class Product {
private String id;
private Product(Builder builder) {
setId(builder.id);
}
public static Builder newProduct() {
return new Builder();
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public static final class Builder {
private String id;
private Builder() {
}
public Builder id(String id) {
this.id = id;
return this;
}
public Product build() {
return new Product(this);
}
}
}
Product product = Product.newProduct()
.id(1l)
.build();
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