I have made this mxj object wich takes floats and measures the time between those incoming floats and puts them into a variable which is List of doubles (List is an object from the java.util package wich can add up items to a list without first declaring its size).

Now i want to make the object handle lists and put those incoming lists followed by the delta-time (since the previous list) into that variable instead of floats.

It would be nice if somebody could take a look:

import com.cycling74.max.*;
import java.util.*;

public class ynsListTest extends MaxObject {

private boolean isRecording = false;
private List storage = new ArrayList();
private double time = -1;

public ynsListTest() {
declareIO(2,1);
}

public void record(boolean b) {
isRecording = b;
if (b) {
storage.clear();
time = -1;
}
}

public void inlet(float value) {
if (getInlet() == 1 && isRecording) {
double currentTime = MaxClock.getTime();
double delta;
if (time == -1) {
delta = 0;
} else {
delta = currentTime – time;
}
storage.add(new Double[] {(double)value, delta});
time = currentTime;
}
}
}

private List storage = new ArrayList();

and then instead of filling it with a Double[] fill it with a wrapper class (that i’d have to make) which contains an Atom[] (which would be the list coming in) and a double timestamp(don’t know what that is actually?) like this?:

storage.add(new Wrapper(value, delta};

private List storage = new ArrayList();

I hope it’s not to time consuming though, making an object every time I need to add something to the List. The addition’s will be done with a speed up to 10 ms.

Would there be a way without needing the wrapper object but maybe converting some values so they can go into List ?

But you think that the Wrapper object would take less memory than an array of doubles?

Could i skip the Wrapper object, convert the data coming from the MaxClock form double to float and create a List of float[]?