01: /*
02: * Copyright 1999-2004 The Apache Software Foundation.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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: * $Id: XMLStringFactoryDefault.java,v 1.3 2004/02/17 04:21:14 minchau Exp $
18: */
19: package org.apache.xml.utils;
20:
21: /**
22: * The default implementation of XMLStringFactory.
23: * This implementation creates XMLStringDefault objects.
24: */
25: public class XMLStringFactoryDefault extends XMLStringFactory {
26: // A constant representing the empty String
27: private static final XMLStringDefault EMPTY_STR = new XMLStringDefault(
28: "");
29:
30: /**
31: * Create a new XMLString from a Java string.
32: *
33: *
34: * @param string Java String reference, which must be non-null.
35: *
36: * @return An XMLString object that wraps the String reference.
37: */
38: public XMLString newstr(String string) {
39: return new XMLStringDefault(string);
40: }
41:
42: /**
43: * Create a XMLString from a FastStringBuffer.
44: *
45: *
46: * @param fsb FastStringBuffer reference, which must be non-null.
47: * @param start The start position in the array.
48: * @param length The number of characters to read from the array.
49: *
50: * @return An XMLString object that wraps the FastStringBuffer reference.
51: */
52: public XMLString newstr(FastStringBuffer fsb, int start, int length) {
53: return new XMLStringDefault(fsb.getString(start, length));
54: }
55:
56: /**
57: * Create a XMLString from a FastStringBuffer.
58: *
59: *
60: * @param string FastStringBuffer reference, which must be non-null.
61: * @param start The start position in the array.
62: * @param length The number of characters to read from the array.
63: *
64: * @return An XMLString object that wraps the FastStringBuffer reference.
65: */
66: public XMLString newstr(char[] string, int start, int length) {
67: return new XMLStringDefault(new String(string, start, length));
68: }
69:
70: /**
71: * Get a cheap representation of an empty string.
72: *
73: * @return An non-null reference to an XMLString that represents "".
74: */
75: public XMLString emptystr() {
76: return EMPTY_STR;
77: }
78: }
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