@Override
	public int size() {
		int sum = 0;
		for (P p : parts) {
			sum += p.size();
		}
		return sum;
	}
Construct a view

@param space the space, bound to an address space
@param parts the single-type views composed
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/listing/AbstractComposedDBTraceCodeUnitsView.java