Enum Defaults

Synopsis of Enum Defaults

public enum Defaults { 
    /*
     * Utilities (3)
     */
        static int to(Integer v, int defaultValue); 
        static int to(Integer v, Integer defaultValue); 
        static T to(T v, T defaultValue); 
} 

Code

// SSDLPedia
package il.ac.technion.cs.ssdl.utils;

import il.ac.technion.cs.ssdl.stereotypes.Utility;

/**
 * A bunch of static functions to manage the frequent
 * conditional of replacing a null value with some default.
 * Writing

   final String guess = Defaults.to(answer,"A")

 * will assign the String "A" to variable
 * guess in the case that answer is
 * null. If however, answer is not
 * null then guess's value will be that of
 * answer.
 * 
 * Author: Yossi Gil, 2008/06/20
 */
@Utility public enum Defaults {
    ;
    /**
     * Return a default value for an Integer type.
     * 
     * v a possibly null value
     * defaultValue a value to be used in case v is
     *            null
     * Return: v if it is not null, otherwise
     *         defaultValue
     */
    public static int to(final Integer v, final int defaultValue) {
        return v != null ? v.intValue() : defaultValue;
    }
    
    /**
     * Return a default value for an Integer type.
     * 
     * v a possibly null value
     * defaultValue a value to be used in case v is
     *            null
     * Return: v if it is not null, otherwise
     *         defaultValue
     */
    public static int to(final Integer v, final Integer defaultValue) {
        return v != null ? v.intValue() : defaultValue.intValue();
    }
    
    /**
     * Return a default value for an arbitrary type.
     * 
     * <T> type of parameter to receive a default value
     * v a possibly null value
     * defaultValue a value to be used in case v is
     *            null
     * Return: v if it is not null, otherwise
     *         defaultValue
     */
    public static <T> T to(final T v, final T defaultValue) {
        return v != null ? v : defaultValue;
    }
}

Metrics

Metric	Value	Acronym	Explanation
LOC	65	Lines Of Code	Total number of lines in the code
SCC	6	SemiColons Count	Total number of semicolon tokens found in the code.
NOT	122	Number Of Tokens	Comments, whitespace and text which cannot be made into a token not included.
VCC	1804	Visible Characters Count	The total number of non-white (i.e., not space, tab, newline, carriage return, form feed) characters.
CCC	396	Code Characters Count	Total number of non-white characters in tokens. White space characters in string and character literals are not counted.
UIC	15	Unique Identifiers Count	The number of different identifiers found in the code
WHC	2	Weighted Horizontal Complexity	A heuritistic on horizontal complexity

Statistics

Statitic	Value
Average token length	3.2
Tokens/line	1.9
Visible characters/line	28
Code characters/line	6.1
Semicolons/tokens	4%
Comment text percentage	78%

Tokens by Kind

Token Kind	Occurrences
KEYWORD	25
OPERATOR	8
LITERAL	0
ID	43
PUNCTUATION	46
COMMENT	5
OTHER	73