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package io.katharsis.jpa.internal.query.backend.criteria;

import java.util.List;
import java.util.Map;

import javax.persistence.EntityManager;
import javax.persistence.criteria.CriteriaQuery;

import io.katharsis.jpa.internal.meta.MetaLookup;
import io.katharsis.jpa.internal.query.AbstractJpaQueryImpl;
import io.katharsis.jpa.internal.query.ComputedAttributeRegistryImpl;
import io.katharsis.jpa.query.criteria.JpaCriteriaQuery;

public class JpaCriteriaQueryImpl extends AbstractJpaQueryImpl>
		implements JpaCriteriaQuery {

	public JpaCriteriaQueryImpl(MetaLookup metaLookup, EntityManager em, Class clazz,
			ComputedAttributeRegistryImpl virtualAttrs) {
		super(metaLookup, em, clazz, virtualAttrs);
	}

	public JpaCriteriaQueryImpl(MetaLookup metaLookup, EntityManager em, Class clazz,
			ComputedAttributeRegistryImpl virtualAttrs, String attrName, List entityIds) {
		super(metaLookup, em, clazz, virtualAttrs, attrName, entityIds);
	}

	public CriteriaQuery buildQuery() {
		return buildExecutor().getQuery();
	}

	@Override
	public JpaCriteriaQueryExecutorImpl buildExecutor() {
		return (JpaCriteriaQueryExecutorImpl) super.buildExecutor();
	}

	@Override
	protected JpaCriteriaQueryBackend newBackend() {
		return new JpaCriteriaQueryBackend<>(this, em, clazz, parentEntityClass, parentAttr, parentIdSelection);
	}

	@Override
	protected JpaCriteriaQueryExecutorImpl newExecutor(JpaCriteriaQueryBackend ctx, int numAutoSelections, Map selectionBindings) {
		return new JpaCriteriaQueryExecutorImpl<>(em, meta, ctx.getCriteriaQuery(), numAutoSelections, selectionBindings);
	}
}