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: XMLStringFactory.java,v 1.4 2004/02/17 04:21:14 minchau Exp $
18: */
19: package org.apache.xml.utils;
20:
21: /**
22: * A concrete class that implements this interface creates XMLString objects.
23: */
24: public abstract class XMLStringFactory {
25:
26: /**
27: * Create a new XMLString from a Java string.
28: *
29: *
30: * @param string Java String reference, which must be non-null.
31: *
32: * @return An XMLString object that wraps the String reference.
33: */
34: public abstract XMLString newstr(String string);
35:
36: /**
37: * Create a XMLString from a FastStringBuffer.
38: *
39: *
40: * @param string FastStringBuffer reference, which must be non-null.
41: * @param start The start position in the array.
42: * @param length The number of characters to read from the array.
43: *
44: * @return An XMLString object that wraps the FastStringBuffer reference.
45: */
46: public abstract XMLString newstr(FastStringBuffer string,
47: int start, int length);
48:
49: /**
50: * Create a XMLString from a FastStringBuffer.
51: *
52: *
53: * @param string FastStringBuffer reference, which must be non-null.
54: * @param start The start position in the array.
55: * @param length The number of characters to read from the array.
56: *
57: * @return An XMLString object that wraps the FastStringBuffer reference.
58: */
59: public abstract XMLString newstr(char[] string, int start,
60: int length);
61:
62: /**
63: * Get a cheap representation of an empty string.
64: *
65: * @return An non-null reference to an XMLString that represents "".
66: */
67: public abstract XMLString emptystr();
68: }
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