builder

问题 Sorry for asking again. I have searched over web but couldn't understand hence i have to put here. Here what I research by my self. I studied from head first design pattern. Abstract factory pattern : As per the differences i studied that builder some senses it is a Factory, but it only creates one type, most of the time. So can i say NYStore in above image is builder as it returns pizza object to client? am i correct? Please give your answer on bases of above example which may help me to

问题 Question 1 Is there a name for the pattern below? class Pattern { function createObject(array $data) { $object = new Object(); $object->setPropertyA($data['A']); $object->setPropertyB($data['B']); $object->setPropertyC($data['C']); return $object; } } Question 2 Is there a name for the above pattern if it is altered to where $data is acquired inside the method? Specifically code below: class Pattern2 { function createObject() { $data = $this->service->acquireData(); $object = new Object();

问题 i want to create a parameterized (generic) class MyType<T> and its builder. builder will have some methods that ignore the type T and some methods that use the type. but it seems like using this pattern i have to repeat the T declaration: how to omit this declaration? | V MyType<String> myType = Builder.<String>of() .method1(argument_can_be_of_any_type) .method2(argument_must_be_of_type_T = String) .build(); is it possible to use some java syntax tricks or other design patterns to omit the

问题 Kinda new to Java programming, And I am trying to create a native app for android. my problem is, that when I select some stuff from my SQLite DB - I want to add a button with an eventlistener next to the output. if(view==btnViewAll) { Cursor c=db.rawQuery("SELECT * FROM catalogue", null); if(c.getCount()==0) { showMessage("Error", "No records found"); return; } StringBuffer buffer=new StringBuffer(); while(c.moveToNext()) { buffer.append("Product name: "+c.getString(1)+"\n"); buffer.append(

问题 I want to use FreeBuilder in a Java module in Android Studio. I added the following dependency in the module dependencies: compile 'org.inferred:freebuilder:1.10.5' Then I created the following class: @FreeBuilder public abstract class MyClass { public abstract String getValue1(); public abstract String getValue2(); public abstract String getValue3(); public static class Builder extends MyClass_Builder { } } I can see that the MyClass_Builder class is correctly generated in the build/classes

问题 Having a base class (which is Parceable) using Builder pattern, now would like to create a child class derived from it so that override the default customFunc_1 and customFunc_2 function implementation. If simply deriving from the base class, class DerivedDataConfig : BaseDataConfig { override open fun customFunc_1(context: Context, savedInstanceState: Bundle?, onElementClickListener: ElementClickListener? = null) : FrameLayout? { // differnt than base Log.i("+++", "+++, customFunc_1 called

问题 I can't quite figure this out. Microsoft Access 2000, on the report total section I have totals for three columns that are just numbers. These =Sum[(ThisColumn1)], 2, 3 , etc and those grand totls all work fine. I want to have another column that says =Sum([ThisColumn1])+Sum([ThisColumn2]) + Sum([ThisColumn3]) but can't figure those one out. Just get a blank so I am sure there is an error. 回答1: Give the 3 Grand Totals meaningful Control Names and then for the Grand Grand Total use: =

问题 I have already defined several buttons in a view with Interface Builder. Now, I would like to add an UIImageView in this view. The idea is to have the UIImageView display behind the already existing buttons. I have dropped a new UIImage View in the view but curiously, I cannot get the image appear under the buttons (buttons are hidden by the fresh UIImageView). When I move my old buttons onto the UIImageView, then they remain in front of them but I guess there is another way to reach what I

问题 I'm trying to implement a simple design goal, but the complexity of Scala's type system gives me some headache. After a comparison of Traversable, Iterator, Iterable, Stream, View etc my decision is to define a custom trait (let's just call it Stream for brevity) that is non-generic (my stream semantically only makes sense as some Stream[StreamEntry] and I want to avoid meaningless types like Stream[Int] ) has similar usage to Iterable all members like take , drop , etc should return Stream

问题 I am trying to create a Holder class for different objects to be used in my application, I ended up with this code that works fine until some extent, the builder pattern works fine for the optional fields, but I guess this holder could be refactored to accept any arbitrarily number of parameter package pojos; public class Holder<T, R, S, U> { private final T t; private final R r; private final S s; private final U u; private Holder(final Builder<T, R, S, U> builder) { this.t = builder.t; this