package io.trygvis.soilmoisture; import android.util.Log; class SmDevice { private final static String TAG = SmDevice.class.getSimpleName(); public SmDevice() { Log.i(TAG, "new device"); } private Boolean isUseful; public boolean isUseful() { return isUseful != null && isUseful; } public Boolean getIsUseful() { return isUseful; } public void setIsUseful(Boolean isUseful) { Log.i(TAG, "useful=" + isUseful); this.isUseful = isUseful; } }