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The runtime library of DBFlute

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/*
 * Copyright 2014-2023 the original author or authors.
 *
 * 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 org.dbflute.cbean.scoping;

import org.dbflute.cbean.ConditionBean;

/**
 * The interface of union-query.
 *  * cb.union(new UnionQuery<FooCB>() {
 *     public void query(FooCB unionCB) {
 *         unionCB.query().setFoo...
 *     }
 * }
 * 
 * @author jflute
 * @param  The type of condition-bean for union.
 */
@FunctionalInterface
public interface UnionQuery {

    /**
     * Set up your query condition for union. 

     * Don't call the method 'setupSelect_Xxx()' and 'addOrderBy_Xxx...()'
     * and they are ignored if you call.
     * @param unionCB The condition-bean for union. (NotNull)
     */
    void query(UNION_CB unionCB);
}