package foundation.dao.bizlogic;

import foundation.data.meta.field.Field;
import foundation.util.Util;
import foundation.variant.provider.IVariantsProvider;

public abstract class ICodeProvider {

	public static ICodeProviderCreator providerCreator;
	
	public static ICodeProvider getInstance(Field field, String codeRule) {
		if (providerCreator == null || Util.isEmpty(codeRule)) {
			return null;
		}
		
		int pos = codeRule.indexOf(".");
		
		if (pos > 0) {
			codeRule = codeRule.substring(pos + 1, codeRule.length());
		}
		
		return providerCreator.createCodeProvider(field, codeRule);
	}

	public abstract String getFieldName();

	public abstract String nextval(String dynamic, IVariantsProvider... providers);

}