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/*-
 * ========================LICENSE_START=================================
 * flyway-database-sybasease
 * ========================================================================
 * Copyright (C) 2010 - 2024 Red Gate Software Ltd
 * ========================================================================
 * 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.
 * =========================LICENSE_END==================================
 */
package org.flywaydb.database.sybasease;

import org.flywaydb.core.internal.database.base.SchemaObject;
import org.flywaydb.core.internal.database.base.Table;
import org.flywaydb.core.internal.jdbc.JdbcTemplate;

import java.sql.SQLException;

/**
 * Sybase ASE table.
 */
public class SybaseASETable extends Table {
    /**
     * Creates a new SAP ASE table.
     *
     * @param jdbcTemplate The Jdbc Template for communicating with the DB.
     * @param database The database-specific support.
     * @param schema The schema this table lives in.
     * @param name The name of the table.
     */
    SybaseASETable(JdbcTemplate jdbcTemplate, SybaseASEDatabase database, SybaseASESchema schema, String name) {
        super(jdbcTemplate, database, schema, name);
    }

    @Override
    protected boolean doExists() throws SQLException {
        return jdbcTemplate.queryForString("SELECT object_id('" + name + "')") != null;
    }

    @Override
    protected void doLock() throws SQLException {
        // Flyway's locking assumes transactions are being used to release locks on commit at some later point
        // (hence the lack of an 'unlock' method)
        // If multi statement transactions aren't supported, then locking a table makes no sense,
        // since that's the only operation we can do
        if (database.supportsMultiStatementTransactions()) {
            jdbcTemplate.execute("LOCK TABLE " + this + " IN EXCLUSIVE MODE");
        }
    }

    @Override
    protected void doDrop() throws SQLException {
        jdbcTemplate.execute("DROP TABLE " + getName());
    }

    /**
     * Since Sybase ASE does not support schema, dropping out the schema name for toString method
     *
     * @see SchemaObject#toString()
     */
    @Override
    public String toString() {
        return name;
    }
}