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Adding javadoc per LANG-424 to point out what happens in substringLast/substringBefore methods when substring is not found 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@749151 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Henri Yandell 2009-03-02 02:33:24 +00:00
parent cb8a0d43ea
commit 4f3b802594
1 changed files with 8 additions and 0 deletions
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8
src/java/org/apache/commons/lang/StringUtils.java
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@ -1755,6 +1755,8 @@ public class StringUtils {
* An empty ("") string input will return the empty string.
* A <code>null</code> separator will return the input string.</p>
*
* <p>If nothing is found, the string input is returned.</p>
*
* <pre>
* StringUtils.substringBefore(null, *) = null
* StringUtils.substringBefore("", *) = ""
@ -1795,6 +1797,8 @@ public class StringUtils {
* A <code>null</code> separator will return the empty string if the
* input string is not <code>null</code>.</p>
*
* <p>If nothing is found, the empty string is returned.</p>
*
* <pre>
* StringUtils.substringAfter(null, *) = null
* StringUtils.substringAfter("", *) = ""
@ -1834,6 +1838,8 @@ public class StringUtils {
* An empty ("") string input will return the empty string.
* An empty or <code>null</code> separator will return the input string.</p>
*
* <p>If nothing is found, the string input is returned.</p>
*
* <pre>
* StringUtils.substringBeforeLast(null, *) = null
* StringUtils.substringBeforeLast("", *) = ""
@ -1871,6 +1877,8 @@ public class StringUtils {
* An empty or <code>null</code> separator will return the empty string if
* the input string is not <code>null</code>.</p>
*
* <p>If nothing is found, the empty string is returned.</p>
*
* <pre>
* StringUtils.substringAfterLast(null, *) = null
* StringUtils.substringAfterLast("", *) = ""