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/*
 * This file is part of datanucleus-postgresql.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 * Copyright (c) Niklas Düster. All Rights Reserved.
 */
package io.github.nscuro.datanucleus.postgresql.method;

import org.datanucleus.store.rdbms.sql.SQLStatement;
import org.datanucleus.store.rdbms.sql.expression.SQLExpression;
import org.datanucleus.store.rdbms.sql.expression.StringExpression;
import org.datanucleus.store.rdbms.sql.method.SQLMethod;

import java.util.List;

abstract class AbstractJsonbMethod implements SQLMethod {

    SQLExpression castAsJsonb(final SQLStatement stmt, final StringExpression expression) {
        final var stringTypeMapping = stmt.getSQLExpressionFactory().getMappingForType(String.class);
        return new StringExpression(stmt, stringTypeMapping, "CAST", List.of(expression), List.of("JSONB"));
    }

}