package foundation.data.meta.template;

import java.util.ArrayList;
import java.util.List;

import foundation.data.meta.field.Field;
import foundation.data.meta.field.FieldsRuntime;

public class Index {

	private List<String> fields;
	private String[] names;
	private int[] values;

	
	public Index() {
		fields = new ArrayList<String>();
	}

	public void build(FieldsRuntime fieldsRuntime) {
		//1.
		List<String> fieldList = new ArrayList<String>();
		List<Integer> noList = new ArrayList<Integer>();
		
		Field field;
		
		for (String fieldName: fields) {
			field = fieldsRuntime.get(fieldName);
			
			if (field == null) {
				continue;
			}
			
			fieldList.add(fieldName);
			noList.add(field.getIndexNo());
		}
		
		//2.
		names = new String[fieldList.size()];
		fieldList.toArray(names);
		
		int max = noList.size();
		values = new int[max];
		for (int i = 0; i < max; i++) {
			values[i] = noList.get(i);
		}
	}
	
	public void loadOne(String fieldName) {
		fields.add(fieldName);
	}
	
	public int[] getValues() {
		return values;
	}

	public String[] getNames() {
		return names;
	}
	
	public void clear() {
		fields.clear();
	}

}