设计模式:创建型 - 原型模式
程序员文章站
2022-06-13 15:52:29
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JAVA:
浅复制:Work 类 中数据不会被克隆
class ProtoType implements Cloneable{
private String id;
private Work work;
public String getId() {return id;}
public void setId(String id) {this.id = id;}
public Work getWork() {return work;}
public void setWork(Work work) {this.work = work;}
@Override
protected Object clone() throws CloneNotSupportedException {
return super.clone();
}
}
class Work{
private String name;
public String getName() {return name;}
public void setName(String name) {this.name = name;}
}
深复制:
class Work implements Cloneable{
private String name;
public String getName() {return name;}
public void setName(String name) {this.name = name;}
// Work 也实现 Cloneable 类
@Override
protected Object clone() throws CloneNotSupportedException {return super.clone();}
}
class ProtoType implements Cloneable{
private String id;
private Work work;
public String getId() {return id;}
public void setId(String id) {this.id = id;}
public Work getWork() {return work;}
public void setWork(Work work) {this.work = work;}
@Override
protected Object clone() throws CloneNotSupportedException {
// work利用引用地址克隆
ProtoType protoType = (ProtoType)super.clone();
protoType.setWork((Work)protoType.getWork().clone());
return protoType;
}
}
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