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    1   /*
    2    * $Id: LinkSubscriptionTag.java 471754 2006-11-06 14:55:09Z husted $
    3    *
    4    * Licensed to the Apache Software Foundation (ASF) under one
    5    * or more contributor license agreements.  See the NOTICE file
    6    * distributed with this work for additional information
    7    * regarding copyright ownership.  The ASF licenses this file
    8    * to you under the Apache License, Version 2.0 (the
    9    * "License"); you may not use this file except in compliance
    10   * with the License.  You may obtain a copy of the License at
    11   *
    12   *  http://www.apache.org/licenses/LICENSE-2.0
    13   *
    14   * Unless required by applicable law or agreed to in writing,
    15   * software distributed under the License is distributed on an
    16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    17   * KIND, either express or implied.  See the License for the
    18   * specific language governing permissions and limitations
    19   * under the License.
    20   */
    21
    22
    23  package org.apache.struts.webapp.example;
    24
    25
    26  import javax.faces.component.UIComponent;
    27  import javax.faces.context.FacesContext;
    28  import javax.faces.el.ValueBinding;
    29  import javax.faces.webapp.UIComponentTag;
    30
    31
    32  /**
    33   * Generate a URL-encoded hyperlink to the specified URI, with
    34   * associated query parameters selecting a specified Subscription.
    35   *
    36   * @author Craig R. McClanahan
    37   * @version $Rev: 471754 $ $Date: 2006-11-06 08:55:09 -0600 (Mon, 06 Nov 2006) $
    38   */
    39
    40  public class LinkSubscriptionTag extends UIComponentTag {
    41
    42
    43      // -------------------------------------------------------------- Attributes
    44
    45
    46      /**
    47       * The attribute name.
    48       */
    49      protected String name = "subscription";
    50
    51      public void setName(String name) {
    52          this.name = name;
    53      }
    54
    55
    56      /**
    57       * The context-relative URI.
    58       */
    59      protected String page = null;
    60
    61      public void setPage(String page) {
    62          this.page = page;
    63      }
    64
    65
    66      // ---------------------------------------------------------- Public Methods
    67
    68
    69      /**
    70       * Return the component type for this tag.</p>
    71       */
    72      public String getComponentType() {
    73
    74          return ("javax.faces.Output");
    75
    76      }
    77
    78
    79      /**
    80       * <p>Return the renderer type associated with this tag.</p>
    81       */
    82      public String getRendererType() {
    83
    84          return ("org.apache.struts.webapp.example.LinkSubscription");
    85
    86      }
    87
    88
    89      /**
    90       * <p>Release resources allocated to this tag instance.</p>
    91       */
    92      public void release() {
    93
    94          super.release();
    95          this.name = "subscription";
    96          this.page = null;
    97
    98      }
    99
    100
    101     // ------------------------------------------------------- Protected Methods
    102
    103
    104     /**
    105      * <p>Override attributes set on this tag instance.</p>
    106      *
    107      * @param component Component whose attributes should be overridden
    108      */
    109     protected void setProperties(UIComponent component) {
    110
    111         super.setProperties(component);
    112         FacesContext context = getFacesContext();
    113         if (name != null) {
    114             if (isValueReference(name)) {
    115                 ValueBinding vb =
    116                     context.getApplication().createValueBinding(name);
    117                 component.setValueBinding("name", vb);
    118             } else {
    119                 component.getAttributes().put("name", name);
    120             }
    121         }
    122         if (page != null) {
    123             if (isValueReference(page)) {
    124                 ValueBinding vb =
    125                     context.getApplication().createValueBinding(page);
    126                 component.setValueBinding("page", vb);
    127             } else {
    128                 component.getAttributes().put("page", page);
    129             }
    130         }
    131
    132     }
    133
    134
    135 }