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Java > Open Source Codes > org > apache > jetspeed > om > registry > PortletEntry


1 /*
2  * Copyright 2000-2001,2004 The Apache Software Foundation.
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 org.apache.jetspeed.om.registry;
18
19 import java.util.Iterator JavaDoc;
20
21 /**
22  * This entry describes all the properties that should be present in
23  * a RegistryEntry describing a Portlet.
24  * <p>Each PortletEntry must have a type, which may be:
25  * <dl>
26  * <dt>abstract</dt><dd>The entry description is unsuitable for instanciating
27  * a Portlet</dd>
28  * <dt>instance</dt><dd>This entry may be used to create a Portlet and does not
29  * depend on any other portlet entries</dd>
30  * <dt>ref</dt><dd>This entry may be used to instanciate Portlets but depends on
31  * another PortletEntry definition whose registry name can be retrieved by getParent()
32  * </dd>
33  * </dl></p>
34  *
35  * @author <a HREF="mailto:raphael@apache.org">RaphaŽl Luta</a>
36  * @version $Id: PortletEntry.java,v 1.5 2004/02/23 03:11:39 jford Exp $
37  */

38 public interface PortletEntry extends PortletInfoEntry
39 {
40
41     public static final String JavaDoc TYPE_REF = "ref";
42     public static final String JavaDoc TYPE_INSTANCE = "instance";
43     public static final String JavaDoc TYPE_ABSTRACT = "abstract";
44
45     public final static String JavaDoc DEFAULT_GROUP = "Jetspeed";
46     public final static String JavaDoc DEFAULT_CATEGORY_REF = "General";
47     public final static String JavaDoc DEFAULT_CATEGORY_ABSTRACT = "Abstract";
48
49     /** @return the URL associated with this portlet or null */
50     public String JavaDoc getURL();
51
52     /**
53      * Sets the URL for this PortletEntry
54      * @param url the new PortletEntry URL
55      */

56     public void setURL( String JavaDoc url );
57
58     /**
59      * Determines whether to use the URL as part of the unique id to the portlet cache.
60      * This can be used to control the lifetime of the portlet.
61      * The URL is used in combination with the parameter names and values for this portlet
62      * to uniquely identify to portlet. Parameters may also be optionally included in the cache key.
63      * This value can be set in the portlet registry.
64      *
65      * @return true if the URL is to be part of the cache key.
66      */

67     public boolean isCachedOnURL();
68
69     /**
70      * Determines whether to use the URL as part of the unique id to the portlet cache.
71      * This can be used to control the lifetime of the portlet.
72      * The URL is used in combination with the parameter names and values for this portlet
73      * to uniquely identify to portlet. Parameters may also be optionally included in the cache key.
74      * This value can be set in the portlet registry.
75      *
76      * @return cached set to true if want this portlet to be cached based on the url
77      */

78     public void setCachedOnURL(boolean cached);
79
80     /**
81      * Gets the URL entry record for this portlet entry
82      *
83      * @return ContentURL the URL entry object
84      */

85     public ContentURL getURLEntry();
86
87     /**
88       * helper to get an instance of a cached parameter.
89       *
90       * @param name The parameter name.
91       * @return The cached parameter entry.
92       */

93     public CachedParameter getCachedParameter( String JavaDoc name );
94
95     /** @return the entry name from which this one is derived */
96     public String JavaDoc getParent();
97
98     /**
99      * Sets the ancestor for this PortletEntry.
100      * @param parent the new ancestor entry name. This name should
101      * be defined in the system registry
102      */

103     public void setParent( String JavaDoc parent );
104
105     /** @return true is this entry is only accessible by the
106       * portal administrators.
107       */

108     public boolean isAdmin();
109
110     /** @return true is the PortletEntry is marked as an application */
111     public boolean isApplication();
112
113     /** Sets the application status of this portlet entry. If an entry
114      * is maked as application, the associated portlet will only be displayed
115      * in Maximized mode and can be retrieved specifically
116      *
117      * @param application the new application status
118      */

119     public void setApplication( boolean application );
120
121     /** @return the type of this entry */
122     public String JavaDoc getType();
123
124     /** Sets the type of this entry. The type specifies whether it is
125      * abstract, instance or ref
126      *
127      * @param type the new type for the PortletEntry
128      */

129     public void setType( String JavaDoc type );
130
131
132     /**
133      * Returns a list of the categories
134      *
135      * @return an iterator on the categories
136      */

137     public Iterator JavaDoc listCategories();
138
139     /**
140      * Test if a given category exists for this entry
141      *
142      * @param name the category name
143      * @return true is the category exists in the default group
144      */

145     public boolean hasCategory(String JavaDoc name);
146
147     /**
148      * Test if a given category exists for this entry, in the specified group of categories.
149      *
150      * @param name the category name
151      * @param group the category group
152      * @return true is the category exists in the specified group
153      */

154     public boolean hasCategory(String JavaDoc name, String JavaDoc group);
155
156     /**
157      * Add a new category to this portlet entry in the default group.
158      *
159      * @param name the category name
160      */

161     public void addCategory(String JavaDoc name);
162
163     /**
164      * Add a new category to this portlet entry.
165      *
166      * @param name the category name
167      * @param group the category group name
168      */

169     public void addCategory(String JavaDoc name, String JavaDoc group);
170
171     /**
172      * Remove a category from this portlet entry in the default group.
173      *
174      * @param name the category name
175      */

176     public void removeCategory(String JavaDoc name);
177
178     /**
179      * Remove a category from this portlet entry in the specified group.
180      *
181      * @param name the media type name to remove.
182      * @param group the category group name
183      */

184     public void removeCategory(String JavaDoc name, String JavaDoc group);
185
186 }
187
188
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