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eFaps is a framework used to map objects with or without attached files to a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface. The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.

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/*
 * Copyright 2003 - 2012 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev: 7483 $
 * Last Changed:    $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
 * Last Changed By: $Author: [email protected] $
 */


package org.efaps.db.search.section;

import java.util.ArrayList;
import java.util.List;

import org.efaps.db.AbstractObjectQuery;
import org.efaps.db.search.AbstractQPart;
import org.efaps.db.wrapper.SQLPart;
import org.efaps.db.wrapper.SQLSelect;
import org.efaps.util.EFapsException;


/**
 * Comparison for max value.
 *
 * @author The eFaps Team
 * @version $Id: QOrderBySection.java 7483 2012-05-11 16:57:38Z [email protected] $
 */
public class QOrderBySection
     extends AbstractQSection
{

    /**
     * List of attributes this will be ordered.
     */
    private final List parts = new ArrayList();

    /**
     * Constructor adding Attributes.
     * @param _parts Array of AbstractQPart
     */
    public QOrderBySection(final AbstractQPart... _parts)
    {
        for (final AbstractQPart part : _parts) {
            this.parts.add(part);
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public QOrderBySection appendSQL(final SQLSelect _select)
        throws EFapsException
    {
        _select.addPart(SQLPart.ORDERBY);
        boolean first = true;
        for (final AbstractQPart part : this.parts) {
            if (first) {
                first = false;
            } else {
                _select.addPart(SQLPart.COMMA);
            }
            part.appendSQL(_select);
        }
        return this;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public QOrderBySection prepare(final AbstractObjectQuery _query)
        throws EFapsException
    {
        for (final AbstractQPart part : this.parts) {
            part.prepare(_query, null);
        }
        return this;
    }

    /**
     * Add an attribute to the list of attributes the query will be ordered by.
     *
     * @param _part AbstractQPart to be added
     * @return this
     */
    public QOrderBySection addPart(final AbstractQPart _part)
    {
        this.parts.add(_part);
        return this;
    }
}