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      1 /*
      2  * Licensed to the Apache Software Foundation (ASF) under one
      3  * or more contributor license agreements. See the NOTICE file
      4  * distributed with this work for additional information
      5  * regarding copyright ownership. The ASF licenses this file
      6  * to you under the Apache License, Version 2.0 (the  "License");
      7  * you may not use this file except in compliance with the License.
      8  * You may obtain a copy of the License at
      9  *
     10  *     http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  * Unless required by applicable law or agreed to in writing, software
     13  * distributed under the License is distributed on an "AS IS" BASIS,
     14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  * See the License for the specific language governing permissions and
     16  * limitations under the License.
     17  */
     18 /*
     19  * $Id:  $
     20  */
     21 package org.apache.xml.serializer.dom3;
     22 
     23 import java.util.Vector;
     24 
     25 //import org.apache.xerces.dom3.DOMStringList;
     26 import org.w3c.dom.DOMStringList;
     27 
     28 /**
     29  * This class implemets the DOM Level 3 Core interface DOMStringList.
     30  *
     31  * @xsl.usage internal
     32  */
     33 final class DOMStringListImpl implements DOMStringList {
     34 
     35     //A collection of DOMString values
     36     private Vector fStrings;
     37 
     38     /**
     39      * Construct an empty list of DOMStringListImpl
     40      */
     41     DOMStringListImpl() {
     42         fStrings = new Vector();
     43     }
     44 
     45     /**
     46      * Construct an empty list of DOMStringListImpl
     47      */
     48     DOMStringListImpl(Vector params) {
     49         fStrings = params;
     50     }
     51 
     52     /**
     53      * Construct an empty list of DOMStringListImpl
     54      */
     55     DOMStringListImpl(String[] params ) {
     56         fStrings = new Vector();
     57         if (params != null) {
     58             for (int i=0; i < params.length; i++) {
     59                 fStrings.add(params[i]);
     60             }
     61         }
     62     }
     63 
     64     /**
     65      * @see org.apache.xerces.dom3.DOMStringList#item(int)
     66      */
     67     public String item(int index) {
     68         try {
     69             return (String) fStrings.elementAt(index);
     70         } catch (ArrayIndexOutOfBoundsException e) {
     71             return null;
     72         }
     73     }
     74 
     75     /**
     76      * @see org.apache.xerces.dom3.DOMStringList#getLength()
     77      */
     78     public int getLength() {
     79         return fStrings.size();
     80     }
     81 
     82     /**
     83      * @see org.apache.xerces.dom3.DOMStringList#contains(String)
     84      */
     85     public boolean contains(String param) {
     86         return fStrings.contains(param) ;
     87     }
     88 
     89     /**
     90      * DOM Internal:
     91      * Add a <code>DOMString</code> to the list.
     92      *
     93      * @param domString A string to add to the list
     94      */
     95     public void add(String param) {
     96         fStrings.add(param);
     97     }
     98 
     99 }
    100