?? broker.java
字號:
package com.javapatterns.command.stocktrader;
// Invoker. Invoker.java
public class Broker
{
/**
* @link aggregation
*/
private Command buyCommand, sellCommand;
public Broker( Command buy, Command sell)
{
buyCommand = buy;
sellCommand = sell;
}
void buy()
{
buyCommand.execute() ;
}
void sell()
{
sellCommand.execute();
}
}
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