View Javadoc

    1   /*
    2    * $Id: UseAttributeTei.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  package org.apache.struts.tiles.taglib;
    23
    24
    25  import javax.servlet.jsp.tagext.TagData;
    26  import javax.servlet.jsp.tagext.TagExtraInfo;
    27  import javax.servlet.jsp.tagext.VariableInfo;
    28
    29
    30  /**
    31   * Implementation of <code>TagExtraInfo</code> for the <b>UseAttribute</b>
    32   * tag, identifying the scripting object(s) to be made visible.
    33   *
    34   */
    35
    36  public final class UseAttributeTei extends TagExtraInfo {
    37
    38
    39      /**
    40       * Return information about the scripting variables to be created.
    41       */
    42      public VariableInfo[] getVariableInfo(TagData data) {
    43
    44        String classname = data.getAttributeString("classname");
    45        if( classname == null )
    46          classname = "java.lang.Object";
    47        String id = data.getAttributeString("id");
    48        if( id == null )
    49          id = data.getAttributeString("name");
    50
    51        return new VariableInfo[] {
    52        new VariableInfo(id,
    53                         classname,
    54                         true,
    55                         VariableInfo.AT_END)
    56    };
    57
    58      }
    59
    60
    61  }