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1   /**
2    * Copyright 2005-2011 The Kuali Foundation
3    *
4    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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  package org.kuali.rice.kew.api.rule;
17  
18  import java.io.Serializable;
19  import java.util.Collection;
20  import javax.xml.bind.annotation.XmlAccessType;
21  import javax.xml.bind.annotation.XmlAccessorType;
22  import javax.xml.bind.annotation.XmlAnyElement;
23  import javax.xml.bind.annotation.XmlElement;
24  import javax.xml.bind.annotation.XmlRootElement;
25  import javax.xml.bind.annotation.XmlType;
26  import org.kuali.rice.core.api.CoreConstants;
27  import org.kuali.rice.core.api.mo.AbstractDataTransferObject;
28  import org.kuali.rice.core.api.mo.ModelBuilder;
29  import org.w3c.dom.Element;
30  
31  @XmlRootElement(name = RuleExpression.Constants.ROOT_ELEMENT_NAME)
32  @XmlAccessorType(XmlAccessType.NONE)
33  @XmlType(name = RuleExpression.Constants.TYPE_NAME, propOrder = {
34      RuleExpression.Elements.TYPE,
35      RuleExpression.Elements.EXPRESSION,
36      RuleExpression.Elements.ID,
37      CoreConstants.CommonElements.VERSION_NUMBER,
38      CoreConstants.CommonElements.OBJECT_ID,
39      CoreConstants.CommonElements.FUTURE_ELEMENTS
40  })
41  public final class RuleExpression
42      extends AbstractDataTransferObject
43      implements RuleExpressionContract
44  {
45  
46      @XmlElement(name = Elements.TYPE, required = false)
47      private final String type;
48      @XmlElement(name = Elements.EXPRESSION, required = false)
49      private final String expression;
50      @XmlElement(name = Elements.ID, required = false)
51      private final String id;
52      @XmlElement(name = CoreConstants.CommonElements.VERSION_NUMBER, required = false)
53      private final Long versionNumber;
54      @XmlElement(name = CoreConstants.CommonElements.OBJECT_ID, required = false)
55      private final String objectId;
56      @SuppressWarnings("unused")
57      @XmlAnyElement
58      private final Collection<Element> _futureElements = null;
59  
60      /**
61       * Private constructor used only by JAXB.
62       * 
63       */
64      private RuleExpression() {
65          this.type = null;
66          this.expression = null;
67          this.id = null;
68          this.versionNumber = null;
69          this.objectId = null;
70      }
71  
72      private RuleExpression(Builder builder) {
73          this.type = builder.getType();
74          this.expression = builder.getExpression();
75          this.id = builder.getId();
76          this.versionNumber = builder.getVersionNumber();
77          this.objectId = builder.getObjectId();
78      }
79  
80      @Override
81      public String getType() {
82          return this.type;
83      }
84  
85      @Override
86      public String getExpression() {
87          return this.expression;
88      }
89  
90      @Override
91      public String getId() {
92          return this.id;
93      }
94  
95      @Override
96      public Long getVersionNumber() {
97          return this.versionNumber;
98      }
99  
100     @Override
101     public String getObjectId() {
102         return this.objectId;
103     }
104 
105 
106     /**
107      * A builder which can be used to construct {@link RuleExpression} instances.  Enforces the constraints of the {@link RuleExpressionContract}.
108      * 
109      */
110     public final static class Builder
111         implements Serializable, ModelBuilder, RuleExpressionContract
112     {
113 
114         private String type;
115         private String expression;
116         private String id;
117         private Long versionNumber;
118         private String objectId;
119 
120         private Builder() {
121             // TODO modify this constructor as needed to pass any required values and invoke the appropriate 'setter' methods
122         }
123 
124         public static Builder create() {
125             // TODO modify as needed to pass any required values and add them to the signature of the 'create' method
126             return new Builder();
127         }
128 
129         public static Builder create(RuleExpressionContract contract) {
130             if (contract == null) {
131                 throw new IllegalArgumentException("contract was null");
132             }
133             // TODO if create() is modified to accept required parameters, this will need to be modified
134             Builder builder = create();
135             builder.setType(contract.getType());
136             builder.setExpression(contract.getExpression());
137             builder.setId(contract.getId());
138             builder.setVersionNumber(contract.getVersionNumber());
139             builder.setObjectId(contract.getObjectId());
140             return builder;
141         }
142 
143         public RuleExpression build() {
144             return new RuleExpression(this);
145         }
146 
147         @Override
148         public String getType() {
149             return this.type;
150         }
151 
152         @Override
153         public String getExpression() {
154             return this.expression;
155         }
156 
157         @Override
158         public String getId() {
159             return this.id;
160         }
161 
162         @Override
163         public Long getVersionNumber() {
164             return this.versionNumber;
165         }
166 
167         @Override
168         public String getObjectId() {
169             return this.objectId;
170         }
171 
172         public void setType(String type) {
173             // TODO add validation of input value if required and throw IllegalArgumentException if needed
174             this.type = type;
175         }
176 
177         public void setExpression(String expression) {
178             // TODO add validation of input value if required and throw IllegalArgumentException if needed
179             this.expression = expression;
180         }
181 
182         public void setId(String id) {
183             // TODO add validation of input value if required and throw IllegalArgumentException if needed
184             this.id = id;
185         }
186 
187         public void setVersionNumber(Long versionNumber) {
188             // TODO add validation of input value if required and throw IllegalArgumentException if needed
189             this.versionNumber = versionNumber;
190         }
191 
192         public void setObjectId(String objectId) {
193             // TODO add validation of input value if required and throw IllegalArgumentException if needed
194             this.objectId = objectId;
195         }
196 
197     }
198 
199 
200     /**
201      * Defines some internal constants used on this class.
202      * 
203      */
204     static class Constants {
205 
206         final static String ROOT_ELEMENT_NAME = "ruleExpression";
207         final static String TYPE_NAME = "RuleExpressionType";
208 
209     }
210 
211 
212     /**
213      * A private class which exposes constants which define the XML element names to use when this object is marshalled to XML.
214      * 
215      */
216     static class Elements {
217 
218         final static String TYPE = "type";
219         final static String EXPRESSION = "expression";
220         final static String ID = "id";
221 
222     }
223 
224 }