在Swift 2.0中的抽象類

Question

我想將我在java中的抽象類轉換爲swift，我不知道我做了什麼是正確的。我需要建議。

的實際代碼

public abstract class ProtocolLayer 
{ 
    private ProtocolLayer mUpperProtocolLayer; 
    private ProtocolLayer mLowerProtocolLayer; 
    protected byte mVersion; 

    public ProtocolLayer () 
    { 
     mUpperProtocolLayer = null; 
     mLowerProtocolLayer = null; 
     mVersion = 0; 
    } 

    /** 
    * Sets the upper layer of the protocol used to pass the eventual message decoded at this level. Set <i>null</i> for the highest layer. 
    * @param pProtocolLayer upper protocol layer to set 
    * @see ProtocolLayer#getUpperProtocolLayer() 
    */ 
    public void setUpperProtocolLayer (ProtocolLayer pProtocolLayer) 
    { 
     mUpperProtocolLayer = pProtocolLayer; 
    } 

    /** 
    * Gets the upper layer of the protocol used to pass the eventual message decoded at this level. 
    * @return pProtocolLayer return the upper protocol layer set 
    * @see ProtocolLayer#setUpperProtocolLayer(ProtocolLayer) 
    */ 
    public ProtocolLayer getUpperProtocolLayer () 
    { 
     return mUpperProtocolLayer; 
    } 

    /** 
    * Sets the lower layer of the protocol used to pass the eventual message encoded at this level. Set <i>null</i> for the lowest layer. 
    * @param pProtocolLayer lower protocol layer to set 
    * @see ProtocolLayer#getLowerProtocolLayer() 
    */ 
    public void setLowerProtocolLayer (ProtocolLayer pProtocolLayer) 
    { 
     mLowerProtocolLayer = pProtocolLayer; 
    } 

    /** 
    * Gets the lower layer of the protocol used to pass the eventual message encoded at this level. 
    * @return return the lower protocol layer set 
    * @see ProtocolLayer#setLowerProtocolLayer(ProtocolLayer) 
    */ 
    public ProtocolLayer getLowerProtocolLayer () 
    { 
     return mLowerProtocolLayer; 
    } 

    /** 
    * Gets the protocol layer version of the message received 
    * @return version of the protocol 
    */ 
    public byte getVersion() 
    { 
     return mVersion; 
    } 

    /** 
    * Method to decode the received message 
    * @param pDataReceived buffer containing data related to this protocol layer 
    * @return message received 
    * @see ProtocolLayer#transmitt() 
    */ 
    public abstract Object receive (byte[] pDataReceived); 

    /** 
    * Method to encode and so transmit a message 
    * @return message encoded 
    * @see ProtocolLayer#receive(byte[]) 
    */ 
    public abstract byte[] transmitt (); 

} 

我確實在迅速

protocol ProtocolLayerProtocol: class { 


} 

public class ProtocolLayer { 
    var mUpperProtocolLayer : ProtocolLayer! 
    var mLowerProtocolLayer : ProtocolLayer! 
    var mVersion : UInt8! 

    /** 
    * Sets the upper layer of the protocol used to pass the eventual message decoded at this level. Set <i>null</i> for the highest layer. 
    * @param pProtocolLayer upper protocol layer to set 
    * @see ProtocolLayer#getUpperProtocolLayer() 
    */ 
    func setUpperProtocolLayer(pProtocolLayer: ProtocolLayer!) { 
     self.mUpperProtocolLayer = pProtocolLayer 
    } 

    /** 
    * Gets the upper layer of the protocol used to pass the eventual message decoded at this level. 
    * @return pProtocolLayer return the upper protocol layer set 
    * @see ProtocolLayer#setUpperProtocolLayer(ProtocolLayer) 
    */ 
    func getUpperProtocolLayer() -> ProtocolLayer? { 
     return self.mUpperProtocolLayer 
    } 

    /** 
    * Sets the lower layer of the protocol used to pass the eventual message encoded at this level. Set <i>null</i> for the lowest layer. 
    * @param pProtocolLayer lower protocol layer to set 
    * @see ProtocolLayer#getLowerProtocolLayer() 
    */ 
    func setLowerProtocolLayer(pProtocolLayer : ProtocolLayer!) { 
     mLowerProtocolLayer = pProtocolLayer 
    } 

    /** 
    * Gets the lower layer of the protocol used to pass the eventual message encoded at this level. 
    * @return return the lower protocol layer set 
    * @see ProtocolLayer#setLowerProtocolLayer(ProtocolLayer) 
    */ 
    func getLowerProtocolLayer() -> ProtocolLayer { 
     return mLowerProtocolLayer 
    } 

    /** 
    * Gets the protocol layer version of the message received 
    * @return version of the protocol 
    */ 
    func getVersion() -> UInt8 { 
     return mVersion 
    } 

    /** 
    * Method to decode the received message 
    * @param pDataReceived buffer containing data related to this protocol layer 
    * @return message received 
    * @see ProtocolLayer#transmitt() 
    */ 
    func receive (pDataReceived : [UInt8]) -> AnyObject!{ 
     return nil; 
    } 

    /** 
    * Method to encode and so transmit a message 
    * @return message encoded 
    * @see ProtocolLayer#receive(byte[]) 
    */ 
    func transmitt (){} 

} 

你能幫助的時刻是什麼？我堅持這個類。感謝所有幫助

Answer 1

我發現我的答案，只需要使用協議

protocol Layer { 

    func receive (pDataReceived : [UInt8]) -> AnyObject! 
    func transmitt() -> [UInt8]? 
}