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Java > Open Source Codes > com > caucho > relaxng > SchemaImpl


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.relaxng;
30
31 import com.caucho.config.BeanConfigException;
32 import com.caucho.relaxng.pattern.GrammarPattern;
33 import com.caucho.relaxng.program.Item;
34 import com.caucho.util.L10N;
35 import com.caucho.util.LruCache;
36
37 /**
38  * JARV Schema implementation
39  */
40 public class SchemaImpl implements Schema {
41   protected static final L10N L = new L10N(SchemaImpl.class);
42
43   private String JavaDoc _filename;
44   
45   private LruCache<Object JavaDoc,Item> _programCache
46     = new LruCache<Object JavaDoc,Item>(1024);
47   
48   private Item _startItem;
49
50   SchemaImpl(GrammarPattern grammar)
51     throws RelaxException
52   {
53     _startItem = grammar.getStart().createItem(grammar);
54
55     if (_startItem == null)
56       throw new RelaxException(L.l("Expected a start item."));
57   }
58   
59   /**
60    * Returns the program.
61    */
62   public Item getStartItem()
63     throws BeanConfigException
64   {
65     return _startItem;
66   }
67
68   public LruCache<Object JavaDoc,Item> getProgramCache()
69   {
70     return _programCache;
71   }
72
73   /**
74    * Sets the schema filename.
75    */
76   public void setFilename(String JavaDoc filename)
77   {
78     _filename = filename;
79   }
80   
81   /**
82    * Creates a verifier from the schema.
83    */
84   public Verifier newVerifier()
85   {
86     return new VerifierImpl(this);
87   }
88
89   public String JavaDoc toString()
90   {
91     if (_filename != null)
92       return "SchemaImpl[" + _filename + "]";
93     else
94       return "SchemaImpl[]";
95   }
96 }
97
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