抽象类错误

时间:2013-07-31 13:28:41

标签: java jvm cloud virtualization

我正在研究Cloudsim.i想要为我自己的工作改变PowerVmAllocationPolicyAbstract类的findHostForVm()方法。将findHostForVm()更改为以下表达的抽象方法

public abstract class PowerVmAllocationPolicyAbstract extends VmAllocationPolicy {
    public PowerVmAllocationPolicyAbstract(List<? extends Host> list) {
    super(list);
      }
    public abstract PowerHost   findHostForVm(Vm vm) ;
     .
     .
} 

在我自己的课上我写了findHostForVm(Vm vm)。当我从powerDatacenter创建实例时,一个参数需要引用PowerVmAllocationPolicyAbstract .i在下面写的

public class D{
  public PowerHost findHostForVm(List<Vm>  vmlist) {
   .
   .
  }
    powerDatacenter = new PowerDatacenter(
                name,
                characteristics,
                new D(),
                 new LinkedList<Storage>(),
                5.0);
   }

但它有错误。这个错误是:

constructor PowerDatacenter in class org.cloudbus.cloudsim.power.PowerDatacenter cannot            be applied to given types;
   required:    java.lang.String,org.cloudbus.cloudsim.DatacenterCharacteristics,org.cloudbus.cloudsim.VmAl       locationPolicy,java.util.List<org.cloudbus.cloudsim.Storage>,double
    found:     java.lang.String,org.cloudbus.cloudsim.DatacenterCharacteristics,cs.umu.se.vmp.alg.    D,java.util.LinkedList<org.cloudbus.cloudsim.Storage>,double
   reason: actual argument cs.umu.se.vmp.alg. D  cannot be converted to    org.cloudbus.cloudsim.VmAllocationPolicy by method invocation conversion

请帮帮我,我该怎么办? 非常感谢

0 个答案:

没有答案