Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/utils/StringUtils.java @ 806:2cea76f1112e
Added Javadoc in utils package.
gnv-artifacts/trunk@888 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 08 Apr 2010 13:10:39 +0000 |
| parents | 6cff63d0c434 |
| children | f953c9a559d8 |
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| 805:bb7afd783321 | 806:2cea76f1112e |
|---|---|
| 1 package de.intevation.gnv.utils; | 1 package de.intevation.gnv.utils; |
| 2 | 2 |
| 3 /** | 3 /** |
| 4 * Helper class which supports some methods for working with strings. | |
| 5 * | |
| 4 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | 6 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> |
| 5 */ | 7 */ |
| 6 public final class StringUtils | 8 public final class StringUtils |
| 7 { | 9 { |
| 8 private StringUtils() { | 10 private StringUtils() { |
| 9 } | 11 } |
| 10 | 12 |
| 13 /** | |
| 14 * Append a string to a string array. | |
| 15 * | |
| 16 * @param haystack String array. | |
| 17 * @param straw String to append. | |
| 18 * @return the new string array. | |
| 19 */ | |
| 11 public static final String [] append(String [] haystack, String straw) { | 20 public static final String [] append(String [] haystack, String straw) { |
| 12 if (haystack == null) { | 21 if (haystack == null) { |
| 13 return new String [] { straw }; | 22 return new String [] { straw }; |
| 14 } | 23 } |
| 15 String [] nhaystack = new String[haystack.length + 1]; | 24 String [] nhaystack = new String[haystack.length + 1]; |
| 16 System.arraycopy(haystack, 0, nhaystack, 0, haystack.length); | 25 System.arraycopy(haystack, 0, nhaystack, 0, haystack.length); |
| 17 nhaystack[haystack.length] = straw; | 26 nhaystack[haystack.length] = straw; |
| 18 return nhaystack; | 27 return nhaystack; |
| 19 } | 28 } |
| 20 | 29 |
| 30 /** | |
| 31 * Checks the existence of a string in a given string array. | |
| 32 * | |
| 33 * @param haystack String array. | |
| 34 * @param needle String for being checked. | |
| 35 * @return true, if the string is contained in <i>haystack</i> - else false. | |
| 36 */ | |
| 21 public static final boolean contains(String [] haystack, String needle) { | 37 public static final boolean contains(String [] haystack, String needle) { |
| 22 if (haystack == null) { | 38 if (haystack == null) { |
| 23 return false; | 39 return false; |
| 24 } | 40 } |
| 25 | 41 |