package foundation.data.rule.exists;

import java.util.Iterator;

import foundation.server.config.DBaseType;
import foundation.util.MapList;

public class ExistsRules implements Iterable<ExistsRule> {

	private DBaseType dbaseType;
	private String dataName;
	private MapList<String, ExistsRule> rules;
	
	
	public ExistsRules(String dataName) {
		this.dataName = dataName;
		rules = new MapList<String, ExistsRule>();
	}

	public static ExistsRules getInstance(String dataName, DBaseType dbaseType) {
		ExistsBucket bucket = ExistsBucket.getInstance();
		ExistsRules result = bucket.get(dataName);
		
		if (result == null) {
			return null;
		}
		
		result.setDbaseType(dbaseType);
		return result;
	}

	public void loadOne(String ruleId, ExistsRule rule) {	
		if (rules.contains(ruleId)) {
			return;
		}
		
		rules.add(ruleId, rule);
	}

	public ExistsRules setDbaseType(DBaseType dbaseType) {
		this.dbaseType = dbaseType;
		
		for (ExistsRule rule: rules) {
			rule.setDBaseType(dbaseType);
		}
		
		return this;
	}

	public DBaseType getDbaseType() {
		return dbaseType;
	}

	@Override
	public Iterator<ExistsRule> iterator() {
		return rules.iterator();
	}

	@Override
	public String toString() {
		return dataName + " size=" + rules.size();
	}
	
}