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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.print.value;

import java.math.BigDecimal;

import org.efaps.admin.datamodel.Attribute;
import org.efaps.admin.datamodel.Type;
import org.efaps.db.print.OneSelect;
import org.efaps.db.wrapper.SQLSelect;
import org.efaps.util.EFapsException;

/**
 * Class is used to select an id.
 * Can be used directly or in conjunction with {@link TypeValueSelect}
 * or Status.
 *
 * @author The eFaps Team
 * @version $Id: IDValueSelect.java 7483 2012-05-11 16:57:38Z [email protected] $
 */
public class IDValueSelect
    extends AbstractValueSelect
{
    /**
     * Attribute belonging to this IDValueSelect.
     */
    private Attribute attribute;

    /**
     * @param _oneSelect OneSelect
     */
    public IDValueSelect(final OneSelect _oneSelect)
    {
        super(_oneSelect);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public int append2SQLSelect(final Type _type,
                                final SQLSelect _select,
                                final int _tableIndex,
                                final int _colIndex)
    {
        int ret = 0;
        if (getParent() == null || !"type".equals(getParent().getValueType())) {
            _select.column(_tableIndex, "ID");
            getColIndexs().add(_colIndex);
            ret++;
            this.attribute = _type.getAttribute("ID");
        }
        return ret;
    }

    @Override
    public Object getValue(final Object _object)
        throws EFapsException
    {
        Long tempId;
        // check is necessary because Oracle JDBC returns for getObject always a BigDecimal
        if (_object instanceof BigDecimal) {
            tempId = ((BigDecimal) _object).longValue();
        } else {
            tempId = (Long) _object;
        }
        return tempId;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Attribute getAttribute()
    {
        return this.attribute;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getValueType()
    {
        return "id";
    }
}