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1   /***
2    *  Copyright 2003-2010 Terracotta, Inc.
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  
17  package net.sf.ehcache.config.generator.model;
18  
19  /***
20   * Interface that abstracts the idea of an attribute. An attribute has a name, a value, boolean indicating if its an optional attribute and
21   * a default value
22   * 
23   * @author Abhishek Sanoujam
24   * 
25   */
26  public interface NodeAttribute {
27  
28      /***
29       * Name of the attribute
30       * 
31       * @return Name of the attribute
32       */
33      String getName();
34  
35      /***
36       * Value of the attribute
37       * 
38       * @return value of the attribute
39       */
40      String getValue();
41  
42      /***
43       * Returns true if the attribute is optional, otherwise false
44       * 
45       * @return Returns true if the attribute is optional, otherwise false
46       */
47      boolean isOptional();
48  
49      /***
50       * Returns the default value of the attribute
51       * 
52       * @return default value of the attribute
53       */
54      String getDefaultValue();
55  
56      /***
57       * Sets this attribute to optional or not
58       * 
59       * @param optional
60       *            true if this attribute is optional
61       */
62      public void setOptional(boolean optional);
63  
64      /***
65       * Default value setter
66       * 
67       * @param defaultValue
68       *            the default value
69       */
70      public void setDefaultValue(String defaultValue);
71      
72      /***
73       * Setter for value
74       * 
75       * @param value
76       *            the new value
77       */
78      public void setValue(String value);
79  
80      /***
81       * Builder convenience method for setting optional
82       * 
83       * @param optional
84       *            true if optional
85       * @return the same attribute instance
86       */
87      NodeAttribute optional(boolean optional);
88  
89      /***
90       * Builder convenience method for setting defaultValue
91       * 
92       * @param defaultValue
93       *            the default value
94       * @return the same attribute instance
95       */
96      NodeAttribute defaultValue(String defaultValue);
97  
98  }