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/**
 * Copyright (c) 2009-2014, Data Geekery GmbH (http://www.datageekery.com)
 * All rights reserved.
 *
 * This work is dual-licensed
 * - under the Apache Software License 2.0 (the "ASL")
 * - under the jOOQ License and Maintenance Agreement (the "jOOQ License")
 * =============================================================================
 * You may choose which license applies to you:
 *
 * - If you're using this work with Open Source databases, you may choose
 *   either ASL or jOOQ License.
 * - If you're using this work with at least one commercial database, you must
 *   choose jOOQ License
 *
 * For more information, please visit http://www.jooq.org/licenses
 *
 * Apache Software License 2.0:
 * -----------------------------------------------------------------------------
 * 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.
 *
 * jOOQ License and Maintenance Agreement:
 * -----------------------------------------------------------------------------
 * Data Geekery grants the Customer the non-exclusive, timely limited and
 * non-transferable license to install and use the Software under the terms of
 * the jOOQ License and Maintenance Agreement.
 *
 * This library is distributed with a LIMITED WARRANTY. See the jOOQ License
 * and Maintenance Agreement for more details: http://www.jooq.org/licensing
 */
package org.jooq.util.postgres;

import static org.jooq.util.postgres.information_schema.Tables.ATTRIBUTES;

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

import org.jooq.Record;
import org.jooq.util.AbstractUDTDefinition;
import org.jooq.util.AttributeDefinition;
import org.jooq.util.DataTypeDefinition;
import org.jooq.util.DefaultAttributeDefinition;
import org.jooq.util.DefaultDataTypeDefinition;
import org.jooq.util.RoutineDefinition;
import org.jooq.util.SchemaDefinition;

public class PostgresUDTDefinition extends AbstractUDTDefinition {

    public PostgresUDTDefinition(SchemaDefinition schema, String name, String comment) {
        super(schema, name, comment);
    }

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

        for (Record record : create().select(
                    ATTRIBUTES.ATTRIBUTE_NAME,
                    ATTRIBUTES.ORDINAL_POSITION,
                    ATTRIBUTES.DATA_TYPE,
                    ATTRIBUTES.CHARACTER_MAXIMUM_LENGTH,
                    ATTRIBUTES.NUMERIC_PRECISION,
                    ATTRIBUTES.NUMERIC_SCALE,
                    ATTRIBUTES.IS_NULLABLE,
                    ATTRIBUTES.ATTRIBUTE_DEFAULT,
                    ATTRIBUTES.ATTRIBUTE_UDT_NAME)
                .from(ATTRIBUTES)
                .where(ATTRIBUTES.UDT_SCHEMA.equal(getSchema().getName()))
                .and(ATTRIBUTES.UDT_NAME.equal(getName()))
                .orderBy(ATTRIBUTES.ORDINAL_POSITION)
                .fetch()) {

            DataTypeDefinition type = new DefaultDataTypeDefinition(
                getDatabase(),
                getSchema(),
                record.getValue(ATTRIBUTES.DATA_TYPE),
                record.getValue(ATTRIBUTES.CHARACTER_MAXIMUM_LENGTH),
                record.getValue(ATTRIBUTES.NUMERIC_PRECISION),
                record.getValue(ATTRIBUTES.NUMERIC_SCALE),
                record.getValue(ATTRIBUTES.IS_NULLABLE, boolean.class),
                record.getValue(ATTRIBUTES.ATTRIBUTE_DEFAULT) != null,
                record.getValue(ATTRIBUTES.ATTRIBUTE_UDT_NAME)
            );

            AttributeDefinition column = new DefaultAttributeDefinition(
                this,
                record.getValue(ATTRIBUTES.ATTRIBUTE_NAME),
                record.getValue(ATTRIBUTES.ORDINAL_POSITION),
                type);

            result.add(column);
        }

        return result;
    }

    @Override
    protected List getRoutines0() {
        return Collections.emptyList();
    }
}