/*
 * 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
 *
 *  https://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.
 *
 * Other licenses:
 * -----------------------------------------------------------------------------
 * Commercial licenses for this work are available. These replace the above
 * Apache-2.0 license and offer limited warranties, support, maintenance, and
 * commercial database integrations.
 *
 * For more information, please visit: https://www.jooq.org/legal/licensing
 *
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 */
package org.jooq.impl;

import static org.jooq.Clause.TEMPLATE;

import org.jooq.Clause;
import org.jooq.Context;
import org.jooq.QueryPart;
import org.jooq.SQL;
import org.jooq.impl.QOM.UEmpty;

final class SQLConcatenationImpl extends AbstractQueryPart implements SQL, UEmpty {

    private static final Clause[] CLAUSES = { TEMPLATE };
    private final QueryPart[]     input;

    SQLConcatenationImpl(QueryPart... input) {
        this.input = input;
    }

    @Override
    public final void accept(Context<?> ctx) {
        for (int i = 0; i < input.length; i++) {
            if (i > 0)
                ctx.formatSeparator();

            ctx.visit(input[i]);
        }
    }

    @Override
    public final Clause[] clauses(Context<?> ctx) {
        return CLAUSES;
    }
}
