Java Utililty Methods Wildcard

String wildCard(final String _name)
This method appends wild cards before and after a string./

String trimmedName = _name.toString().trim();
if (trimmedName == null || trimmedName.equals("") || trimmedName.length() == 0) {
 return "";
if (trimmedName.length() > 0 && !trimmedName.endsWith("%")) {
 trimmedName = trimmedName + "%";
if (trimmedName.length() > 0 && !trimmedName.startsWith("%")) {
...

String wildCard(String _name)
wild Card

String trimmedName = _name.toString().trim();
if (trimmedName == null || trimmedName.equals("") || trimmedName.length() == 0) {
 return "";
} else if (trimmedName.length() > 0 && !trimmedName.endsWith("%")) {
 return trimmedName + "%";
} else {
 return trimmedName;

String wildCardBoth(String s)
_more_

return "%" + s + "%";

int wildcardCompare(String s, String z)
wildcard Compare

if (s.equals("*") || z.equals("*")) {
 return 0;
int l = s.length();
int m = z.length();
int i = 0;
int j = 0;
while (j < m && i < l) {
...

String wildcardCriterionSQL(final String query)
Replaces the query with the wildcards asterisk "*" and interrogation mark "?"

String newQuery = query.replace('*', '%').replace('?', '_');
return newQuery;

String wildcardIfEmpty(String inString)
wildcard If Empty

if ((inString == null) || (inString.equalsIgnoreCase(""))) {
 return "%";
return inString;

String wildcardOrIsNullIfEmpty(String column, String inString)
wildcard Or Is Null If Empty

StringBuilder sb = new StringBuilder();
if ((inString == null) || (inString.equalsIgnoreCase(""))) {
 sb.append("'%' or ").append(column).append(" is null");
 return sb.toString();
sb.append("'").append(inString).append("'");
return sb.toString();

String wildcardSearchToRegex(final String wildcard)
wildcard Search To Regex

StringBuilder buffer = new StringBuilder(wildcard.length() + 2);
buffer.append('^');
for (char c : wildcard.toCharArray()) {
 if (c == '*') {
 buffer.append(".*");
 } else if (c == '?') {
 buffer.append('.');
 } else if ("+()^$.{}[]|\\".indexOf(c) != -1) {
...

String wildcardSqlToUser(String exp)
Convert an SQL LIKE/NOT LIKE expression to a * wildcard expression.

StringBuffer sb = new StringBuffer();
for (int i = 0; i < exp.length(); i++) {
 String substring = exp.substring(i);
 if (substring.startsWith("%")) {
 sb.append("*");
 } else {
 if (substring.startsWith("_")) {
 sb.append("?");
...

String wildCardsToX(String s)
Replaces all '*' and '?'

if (s == null || s.isEmpty())
 return s;
StringBuilder res = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
 char ch = s.charAt(i);
 if (Character.isLetterOrDigit(ch) || ch == '-' || ch == '.') { 
 } else if (ch == '*' || ch == '?') { 
 ch = 'x';
...