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/*
 * Copyright 2014 - 2021 Blazebit.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.blazebit.persistence.criteria;

import javax.persistence.criteria.Path;
import javax.persistence.metamodel.MapAttribute;
import javax.persistence.metamodel.PluralAttribute;
import javax.persistence.metamodel.SingularAttribute;

/**
 * An extended version of {@link Path}.
 *
 * @param  The target type
 * @author Christian Beikov
 * @since 1.2.0
 */
public interface BlazePath extends Path, BlazeExpression {

    /* Covariant overrides */

    /**
     * Like {@link Path#getParentPath} but returns the subtype {@link BlazePath} instead.
     *
     * @return parent
     */
    BlazePath getParentPath();

    /**
     * Like {@link Path#get(SingularAttribute)} but returns the subtype {@link BlazePath} instead.
     *
     * @param attribute single-valued attribute
     * @param        The attribute type
     * @return path corresponding to the referenced attribute
     */
     BlazePath get(SingularAttribute attribute);

    /**
     * Like {@link Path#get(PluralAttribute)} but returns the subtype {@link BlazeExpression} instead.
     *
     * @param collection collection-valued attribute
     * @param         The attribute collection type
     * @param         The attribute collection element type
     * @return expression corresponding to the referenced attribute
     */
    > BlazeExpression get(PluralAttribute collection);

    /**
     * Like {@link Path#get(MapAttribute)} but returns the subtype {@link BlazeExpression} instead.
     *
     * @param map map-valued attribute
     * @param  The attribute map type
     * @param  The attribute map key type
     * @param  The attribute map element type
     * @return expression corresponding to the referenced attribute
     */
    > BlazeExpression get(MapAttribute map);

    /**
     * Like {@link Path#type} but returns the subtype {@link BlazeExpression} instead.
     *
     * @return expression corresponding to the type of the path
     */
    BlazeExpression> type();

    /**
     * Like {@link Path#get(String)} but returns the subtype {@link BlazePath} instead.
     *
     * @param attributeName name of the attribute
     * @param            The attribute type
     * @return path corresponding to the referenced attribute
     */
     BlazePath get(String attributeName);

}




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