Factory, Factory Method ? Abstract Factory ??? ??? ???? ???? ?? ?? ???? ????
Nov 04, 2024 am 06:08 AM
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Factory
Factory ??? ????? ??? ?????? ???? ?? ??? ?????. ?? ?????? ?? ?? ??? ??? ????. ????? ?? ??? ??? ??? ??????.
??? ???
??? ???? ?? ??? ?? ?????? ???? ?? ???? ?????? ???? ??? ? ??? ???. Factory ??? ????, ??? ??? ???? ?? ?? ?????? ?????.
Abstract Factory
?? ??? ??? ???? ???? ???? ?? ?? ?? ??? ???? ?? ?????? ?????. ?????. ? ??? ??? ?????? ?? ??? ???? ? ? ?????.
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| Pattern | Differences | When to Use |
|---|---|---|
| Factory | Simplified version of Factory Method | Use when you need a fixed, object-creation mechanism without subclassing. |
| Factory Method | Generic base class with specific creation logic handled by subclasses | Use when you need to vary the object type based on the subclass implementation. |
| Abstract Factory | Creates related objects of the same type | Use when you need to ensure consistency in creating object families for dependency injection or strategy patterns. |
Java ??
??:
<code class="java">public class FruitFactory {
public Fruit makeFruit(String type) {
switch (type) {
case "Apple":
return new Apple();
case "Orange":
return new Orange();
default:
throw new IllegalArgumentException("Invalid fruit type");
}
}
}</code>
??? ???:
<code class="java">abstract class FruitPicker {
protected abstract Fruit makeFruit();
public void pickFruit() {
Fruit fruit = makeFruit();
// Perform operations using fruit...
}
}
class ApplePicker extends FruitPicker {
@Override
protected Fruit makeFruit() {
return new Apple();
}
}
class OrangePicker extends FruitPicker {
@Override
protected Fruit makeFruit() {
return new Orange();
}
}</code>
?? ???:
<code class="java">interface FruitPlantFactory {
public Plant makePlant();
public Picker makePicker();
}
class AppleFactory implements FruitPlantFactory {
@Override
public Apple makePlant() {
return new Apple();
}
@Override
public ApplePicker makePicker() {
return new ApplePicker();
}
}
class OrangeFactory implements FruitPlantFactory {
@Override
public Orange makePlant() {
return new Orange();
}
@Override
public OrangePicker makePicker() {
return new OrangePicker();
}
}</code>? ??? Factory, Factory Method ? Abstract Factory ??? ??? ???? ???? ?? ?? ???? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
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