01: /*
02: (c) Copyright 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP, all rights reserved.
03: [See end of file]
04: $Id: CollectionFactory.java,v 1.7 2008/01/02 12:07:43 andy_seaborne Exp $
05: */
06: package com.hp.hpl.jena.util;
07:
08: import java.util.*;
09:
10: /**
11: CollectionFactory - a central place for allocating sets and maps, mostly so that
12: it's easy to plug in new implementations (eg trove).
13:
14: @author kers
15: */
16: public class CollectionFactory {
17: /**
18: Answer a new Map which uses hashing for lookup.
19: */
20: public static Map createHashedMap() {
21: return new HashMap();
22: }
23:
24: /**
25: Answer a new Map which uses hashing for lookup and has initial size
26: <code>size</code>.
27: */
28: public static Map createHashedMap(int size) {
29: return new HashMap(size);
30: }
31:
32: /**
33: Answer a new Map which uses hashing for lookup and is initialised to be
34: a copy of <code>toCopy</code>.
35: */
36: public static Map createHashedMap(Map toCopy) {
37: return new HashMap(toCopy);
38: }
39:
40: /**
41: Answer a new Set which uses haashing for lookup.
42: */
43: public static Set createHashedSet() {
44: return new HashSet();
45: }
46:
47: /**
48: Answer a new Set which uses hashing for lookup and is initialised as a copy
49: of <code>toCopy</code>.
50: */
51: public static Set createHashedSet(Collection toCopy) {
52: return new HashSet(toCopy);
53: }
54: }
55:
56: /*
57: (c) Copyright 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
58: All rights reserved.
59:
60: Redistribution and use in source and binary forms, with or without
61: modification, are permitted provided that the following conditions
62: are met:
63:
64: 1. Redistributions of source code must retain the above copyright
65: notice, this list of conditions and the following disclaimer.
66:
67: 2. Redistributions in binary form must reproduce the above copyright
68: notice, this list of conditions and the following disclaimer in the
69: documentation and/or other materials provided with the distribution.
70:
71: 3. The name of the author may not be used to endorse or promote products
72: derived from this software without specific prior written permission.
73:
74: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
75: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
76: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
77: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
78: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
79: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
80: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
81: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
82: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
83: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
84: */
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