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package io.katharsis.jpa.query.criteria;

import java.lang.reflect.Type;
import java.util.List;

import io.katharsis.jpa.internal.JpaQueryFactoryBase;
import io.katharsis.jpa.internal.query.backend.criteria.JpaCriteriaQueryImpl;
import io.katharsis.jpa.query.JpaQueryFactory;

public class JpaCriteriaQueryFactory extends JpaQueryFactoryBase implements JpaQueryFactory {

	private JpaCriteriaQueryFactory() {
	}

	public static JpaCriteriaQueryFactory newInstance() {
		return new JpaCriteriaQueryFactory();
	}

	@Override
	public  JpaCriteriaQuery query(Class entityClass) {
		return new JpaCriteriaQueryImpl<>(metaLookup, em, entityClass, computedAttrs);
	}

	@Override
	public  JpaCriteriaQuery query(Class entityClass, String attrName, List entityIds) {
		return new JpaCriteriaQueryImpl<>(metaLookup, em, entityClass, computedAttrs, attrName, entityIds);
	}

	public void registerComputedAttribute(Class targetClass, String attributeName, Type attributeType,
			JpaCriteriaExpressionFactory expressionFactory) {
		computedAttrs.register(targetClass, attributeName, expressionFactory, attributeType);
	}

}