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JSON API framework for Java

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package io.crnk.jpa.internal.query;

import io.crnk.meta.model.MetaAttributePath;

import javax.persistence.EntityGraph;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.persistence.Subgraph;
import java.util.Set;

public class EntityGraphBuilderImpl implements EntityGraphBuilder {

	@Override
	public  void build(EntityManager em, Query criteriaQuery, Class entityClass,
						  Set fetchPaths) {
		EntityGraph graph = em.createEntityGraph(entityClass);
		for (MetaAttributePath fetchPath : fetchPaths) {
			applyFetchPaths(graph, fetchPath);
		}
		criteriaQuery.setHint("javax.persistence.fetchgraph", graph);
	}

	private  Subgraph