visitor.java

来自「《Java与模式》一书的源代码」· Java 代码 · 共 18 行

package com.javapatterns.visitor.inventory;

public abstract class Visitor
{
    public abstract void visitCase(Case e);

    public abstract void visitCpu(Cpu e);

    public abstract void visitHardDisk(HardDisk e);

    public abstract void visitIntegratedBoard(IntegratedBoard e);

    public abstract void visitMainBoard(MainBoard e);

    public abstract void visitPc(Pc e);
}