1   /*
2    * Copyright 2003 - 2013 The eFaps Team
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   * Revision:        $Rev$
17   * Last Changed:    $Date$
18   * Last Changed By: $Author$
19   */
20  
21  package org.efaps.db.print.value;
22  
23  import java.math.BigDecimal;
24  
25  import org.efaps.admin.datamodel.Attribute;
26  import org.efaps.admin.datamodel.Type;
27  import org.efaps.db.print.OneSelect;
28  import org.efaps.db.wrapper.SQLSelect;
29  import org.efaps.util.EFapsException;
30  
31  /**
32   * Class is used to select an id.
33   * Can be used directly or in conjunction with {@link TypeValueSelect}
34   * or Status.
35   *
36   * @author The eFaps Team
37   * @version $Id$
38   */
39  public class IDValueSelect
40      extends AbstractValueSelect
41  {
42      /**
43       * Attribute belonging to this IDValueSelect.
44       */
45      private Attribute attribute;
46  
47      /**
48       * @param _oneSelect OneSelect
49       */
50      public IDValueSelect(final OneSelect _oneSelect)
51      {
52          super(_oneSelect);
53      }
54  
55      /**
56       * {@inheritDoc}
57       */
58      @Override
59      public int append2SQLSelect(final Type _type,
60                                  final SQLSelect _select,
61                                  final int _tableIndex,
62                                  final int _colIndex)
63      {
64          int ret = 0;
65          if (getParent() == null || !"type".equals(getParent().getValueType())) {
66              _select.column(_tableIndex, "ID");
67              getColIndexs().add(_colIndex);
68              ret++;
69              this.attribute = _type.getAttribute("ID");
70          }
71          return ret;
72      }
73  
74      @Override
75      public Object getValue(final Object _object)
76          throws EFapsException
77      {
78          Long tempId;
79          // check is necessary because Oracle JDBC returns for getObject always a BigDecimal
80          if (_object instanceof BigDecimal) {
81              tempId = ((BigDecimal) _object).longValue();
82          } else {
83              tempId = (Long) _object;
84          }
85          return tempId;
86      }
87  
88      /**
89       * {@inheritDoc}
90       */
91      @Override
92      public Attribute getAttribute()
93      {
94          return this.attribute;
95      }
96  
97      /**
98       * {@inheritDoc}
99       */
100     @Override
101     public String getValueType()
102     {
103         return "id";
104     }
105 }