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/**
 * Copyright (c) 2009-2011, Lukas Eder, [email protected]
 * All rights reserved.
 *
 * This software is licensed to you under the Apache License, Version 2.0
 * (the "License"); You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * . Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * . Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * . Neither the name "jOOQ" nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package org.jooq.util.db2;

import static org.jooq.util.db2.syscat.tables.Columns.COLUMNS;

import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import org.jooq.Record;
import org.jooq.util.AbstractTableDefinition;
import org.jooq.util.ColumnDefinition;
import org.jooq.util.DataTypeDefinition;
import org.jooq.util.Database;
import org.jooq.util.DefaultColumnDefinition;
import org.jooq.util.DefaultDataTypeDefinition;
import org.jooq.util.db2.syscat.tables.Columns;

/**
 * DB2 table definition
 *
 * @author Espen Stromsnes
 */
public class DB2TableDefinition extends AbstractTableDefinition {

    public DB2TableDefinition(Database database, String name, String comment) {
        super(database, name, comment);
    }

    @Override
    public List getElements0() throws SQLException {
        List result = new ArrayList();

        for (Record record : create().select(
                    Columns.COLNAME,
                    Columns.COLNO,
                    Columns.TYPENAME,
                    Columns.LENGTH,
                    Columns.SCALE,
                    Columns.IDENTITY)
                .from(COLUMNS)
                .where(Columns.TABSCHEMA.equal(getSchemaName()))
                .and(Columns.TABNAME.equal(getName()))
                .orderBy(Columns.COLNO)
                .fetch()) {

            DataTypeDefinition type = new DefaultDataTypeDefinition(getDatabase(),
                record.getValue(Columns.TYPENAME),
                record.getValue(Columns.LENGTH),
                record.getValue(Columns.SCALE));

            ColumnDefinition column = new DefaultColumnDefinition(
            	getDatabase().getTable(getName()),
                record.getValue(Columns.COLNAME),
                record.getValue(Columns.COLNO),
                type,
                "Y".equalsIgnoreCase(record.getValue(Columns.IDENTITY)),
                null);

            result.add(column);
        }

        return result;
    }
}