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Java > Open Source Codes > org > exolab > jms > selector > SNumber


1 /**
2  * Redistribution and use of this software and associated documentation
3  * ("Software"), with or without modification, are permitted provided
4  * that the following conditions are met:
5  *
6  * 1. Redistributions of source code must retain copyright
7  * statements and notices. Redistributions must also contain a
8  * copy of this document.
9  *
10  * 2. Redistributions in binary form must reproduce the
11  * above copyright notice, this list of conditions and the
12  * following disclaimer in the documentation and/or other
13  * materials provided with the distribution.
14  *
15  * 3. The name "Exolab" must not be used to endorse or promote
16  * products derived from this Software without prior written
17  * permission of Exoffice Technologies. For written permission,
18  * please contact info@exolab.org.
19  *
20  * 4. Products derived from this Software may not be called "Exolab"
21  * nor may "Exolab" appear in their names without prior written
22  * permission of Exoffice Technologies. Exolab is a registered
23  * trademark of Exoffice Technologies.
24  *
25  * 5. Due credit should be given to the Exolab Project
26  * (http://www.exolab.org/).
27  *
28  * THIS SOFTWARE IS PROVIDED BY EXOFFICE TECHNOLOGIES AND CONTRIBUTORS
29  * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32  * EXOFFICE TECHNOLOGIES OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39  * OF THE POSSIBILITY OF SUCH DAMAGE.
40  *
41  * Copyright 2000-2001,2003 (C) Exoffice Technologies Inc. All Rights Reserved.
42  */
43
44 package org.exolab.jms.selector;
45
46
47 /**
48  * This class is the base class for numeric type adapters.
49  *
50  * @version $Revision: 1.1 $ $Date: 2004/11/26 01:50:44 $
51  * @author <a HREF="mailto:tma@netspace.net.au">Tim Anderson</a>
52  * @see SObject
53  */
54 abstract class SNumber extends SObject {
55
56     /**
57      * Returns the addition of a number to this
58      *
59      * @param number the number to add
60      * @return the value of <code>this + number<code>
61      */
62     public abstract SNumber add(final SNumber number);
63
64     /**
65      * Returns the value of the substraction of a number from this
66      *
67      * @param number the number to subtract
68      * @return the value of <code>this - number<code>
69      */
70     public abstract SNumber subtract(final SNumber number);
71
72     /**
73      * Returns the multiplication of a number to this
74      *
75      * @param number the number to multiply
76      * @return the value of <code>this * number<code>
77      */
78     public abstract SNumber multiply(final SNumber number);
79
80     /**
81      * Returns the division of a number from this
82      *
83      * @param number the number to divide
84      * @return the value of <code>this / number<code>
85      */
86     public abstract SNumber divide(final SNumber number);
87
88     /**
89      * Returns the value of this as a <code>long</code>
90      *
91      * @return the value of this as a <code>long</code>
92      */
93     public abstract long getLong();
94
95     /**
96      * Returns the value of this as a <code>double</code>
97      *
98      * @return the value of this as a <code>double</code>
99      */
100     public abstract double getDouble();
101
102     /**
103      * Returns the type of this
104      *
105      * @return {@link Type#NUMERIC}
106      */
107     public final Type type() {
108         return Type.NUMERIC;
109     }
110
111 } //-- SNumber
112
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