org.summerb.approaches.jdbccrud.api.dto.tools.EasyCrudDtoUtils Maven / Gradle / Ivy

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package org.summerb.approaches.jdbccrud.api.dto.tools;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import org.summerb.approaches.jdbccrud.api.dto.HasId;

public abstract class EasyCrudDtoUtils {
	private EasyCrudDtoUtils() {
	}

	public static > Set enumerateIds(Iterable iterable) {
		// TODO: Use streams
		Set ret = new HashSet<>();
		for (HasId row : iterable) {
			ret.add(row.getId());
		}
		return ret;
	}

	public static > Map toMapById(Iterable iterable) {
		// TODO: Use streams
		Map ret = new HashMap<>();
		for (TDto row : iterable) {
			ret.put(row.getId(), row);
		}
		return ret;
	}
}