Kotlin重写Java setter[重复]

Question

void setInputStream(InputStream in);

class ProxyCommand : Command {
    lateinit var _inputStream: ChannelPipedInputStream

    var inputStream: InputStream
        get() = this._inputStream
        set(value) { // This should override it.
            this._inputStream = (value as ChannelPipedInputStream)
        }
}

Accidental override: The following declarations have the same JVM signature (setInputStream(Ljava/io/InputStream;)V): 
public final fun <set-inputStream>(value: InputStream): Unit defined in ...
public abstract fun setInputStream(`in`: InputStream!): Unit defined in ...

上面说这是一次意外的超驰，但这不是偶然的...

我想要的可能吗？还是必须重写SetInputStream方法。我更喜欢kotlin setter..

Answer 1

还是必须重写setInputStream方法。我更喜欢kotlin setter..

TLDR：是的

属性设置器无法重写超类型命令的函数。作为解决办法，将您的属性private设置为private并实现所需的接口方法，例如：

class ProxyCommand : Command {
    override fun setInputStream(`in`: InputStream) {
        TODO("not implemented")
    }

    private lateinit var inputStream: ChannelPipedInputStream
}