public BaseTransaction(Inventory inventory, int slot, Item sourceItem, Item targetItem) {
this.inventory = inventory;
this.slot = slot;
this.sourceItem = sourceItem.clone();
this.targetItem = targetItem.clone();
this.creationTime = System.currentTimeMillis();
}
@Override
public Item getTargetItem() {
return targetItem.clone();
}
@Override
public Item getSourceItem() {
return sourceItem.clone();
}