2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
32 import java.util.HashMap;
33 import java.util.Iterator;
34 import java.util.List;
37 import mir.config.MirPropertiesConfiguration;
38 import mir.config.MirPropertiesConfiguration.PropertiesConfigExc;
39 import mir.log.LoggerWrapper;
40 import mir.storage.StorageObject;
41 import mir.storage.StorageObjectExc;
42 import mir.storage.StorageObjectFailure;
45 * Base class the entities are derived from. Provides base functionality of
48 * @version $Id: AbstractEntity.java,v 1.8.2.2 2004/02/08 21:05:00 zapata Exp $
51 public class AbstractEntity implements Entity {
52 protected static MirPropertiesConfiguration configuration;
55 protected StorageObject storageObject;
56 protected LoggerWrapper logger;
60 configuration = MirPropertiesConfiguration.instance();
62 catch (PropertiesConfigExc e) {
63 throw new RuntimeException(e.getMessage());
67 public AbstractEntity() {
68 logger = new LoggerWrapper("Entity");
70 values = new HashMap();
75 * @param StorageObject The StorageObject of the Entity.
78 public AbstractEntity(StorageObject StorageObject) {
81 setStorage(StorageObject);
84 public void setStorage(StorageObject storage) {
85 this.storageObject = storage;
89 public void setFieldValues(Map aMap) {
91 Iterator i = aMap.entrySet().iterator();
94 Map.Entry entry = (Map.Entry) i.next();
96 setFieldValue( (String) entry.getKey(), (String) entry.getValue());
103 public String getId() {
104 return getFieldValue(storageObject.getIdName());
108 public void setId(String id) {
109 setFieldValue(storageObject.getIdName(), id);
113 public String insert() throws StorageObjectExc {
114 logger.debug("Entity: trying to insert ...");
116 if (storageObject != null) {
117 return storageObject.insert(this);
120 throw new StorageObjectExc("storageObject == null!");
124 public void update() throws StorageObjectFailure {
125 storageObject.update(this);
129 public String getFieldValue(String aFieldName) {
130 String returnValue = null;
132 if (aFieldName != null) {
133 returnValue = (String) values.get(aFieldName);
139 public boolean hasFieldValue(String aFieldName) {
140 return values.containsKey(aFieldName);
144 * Sets the value for a field. Issues a log message if the field name
145 * supplied was not found in the Entity.
146 * @param theProp The field name whose value has to be set
147 * @param theValue The new value of the field
148 * @exception StorageObjectFailure
150 public void setFieldValue(String theProp, String theValue) throws StorageObjectFailure {
151 if (hasField(theProp))
152 values.put(theProp, theValue);
154 logger.warn("Entity.setFieldValue: Property not found: " + theProp + " (" + theValue + ")");
159 * Returns the field names of the Entity
161 public List getFieldNames() throws StorageObjectFailure {
162 return storageObject.getFields();
165 /** Returns whether fieldName is a valid field name of this Entity.
167 * @return true in case fieldName is a field name, else false.
168 * @exception StorageObjectFailure
170 public boolean hasField(String fieldName) throws StorageObjectFailure {
171 return getFieldNames().contains(fieldName);