Author: bayard
Date: Sun Mar 23 17:23:00 2008
New Revision: 640279
URL: http://svn.apache.org/viewvc?rev=640279&view=rev
Log:
Adding a section on the bugfixes
Modified:
commons/proper/lang/trunk/xdocs/article2_4.xml
Modified: commons/proper/lang/trunk/xdocs/article2_4.xml
URL:
http://svn.apache.org/viewvc/commons/proper/lang/trunk/xdocs/article2_4.xml?rev=640279&r1=640278&r2=640279&view=diff
==============================================================================
--- commons/proper/lang/trunk/xdocs/article2_4.xml (original)
+++ commons/proper/lang/trunk/xdocs/article2_4.xml Sun Mar 23 17:23:00 2008
@@ -37,7 +37,7 @@
</section>
<section name="The build">
<p>Before we move on, a quick note on the build: we built 2.4 using Maven 2
and Java 1.4. We also tested that the Ant build passed the tests
-successfully under Java 1.3, and that the classes compiled under Java 1.2. As
it's been so long, we stopped building a Java 1.1-compatible jar. <strong>Most
importantly</strong>, it <em>should</em> be a drop in replacement for Lang 2.3,
but we recommend testing first, of course. Now... moving on.
+successfully under Java 1.3, and that the classes compiled under Java 1.2. As
it's been so long, we stopped building a Java 1.1-compatible jar. <strong>Most
importantly</strong>, it <em>should</em> be a drop in replacement for Lang 2.3,
but we recommend testing first, of course. Also, for those of you who work
within an OSGi framework, the jar should be ready for OSGi. Now... time to move
on.
</p>
</section>
<section name="New classes">
@@ -132,19 +132,19 @@
<section name="New methods">
<p>There were 58 new methods added to existing Commons Lang classes. Going
through each one, one at a time would be dull,
and fortunately there are some nice groupings that we can discuss instead:</p>
-<p><b>CharSet <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/CharSet.html#getInstance(java.lang.String[])">getInstance(String[])</a></b>
adds an additional builder method by which you can build a CharSet from
multiple sets of characters at the same time. If you weren't aware of the
CharSet class, it holds a set of characters created by a simple pattern
language allowing constructs such as <code>"a-z"</code> and <code>"^a"</code>
(everything but 'a'). It's most used by the CharSetUtils class, and came out of
CharSetUtils.translate, a simple variant of the UNIX tr command.</p>
-<p><b>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html";>canonical
name</a> methods</b> are akin to the non '<code>Canonical</code>' methods,
except they work with the more human readable <code>int[]</code> type names
rather than the JVM versions of <code>[I</code>. This makes them useful for
parsing input from developer's configuration files. </p>
-<p><b>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html#toClass(java.lang.Object[])">toClass(String[])</a></b>
is very easy to explain - it calls <code>toClass</code> on each
<code>Object</code> in the array and returns an array of <code>Class</code>
objects.</p>
-<p><b>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html#wrappersToPrimitives(java.lang.Class[])">wrapper->primitive</a>
conversions</b> are the reflection of the pre-existing
<code>primitiveToWrapper</code> methods. Again easy to explain, they turn an
array of <code>Integer</code> into an array of <code>int[]</code>.</p>
-<p><b>ObjectUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ObjectUtils.html#identityToString(java.lang.StringBuffer,%20java.lang.Object)">identityToString(StringBuffer,
Object)</a></b> is the StringBuffer variant of the pre-existing
<code>identityToString</code> method. In case you've not met that before, it
produces the toString that would have been produced by an Object if it hadn't
been overridden.</p>
-<p><b>StringEscapeUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/StringEscapeUtils.html#escapeCsv(java.lang.String)">CSV
methods</a></b> are a new addition to our range of simple parser/printers.
These, quite as expected, parse and unparse CSV text as per <a
href="http://tools.ietf.org/html/rfc4180";>RFC-4180</a>.</p>
-<p><b>StringUtils</b> has a host of new methods, as always, and we'll leave
these for later.</p>
-<p><b>WordUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/WordUtils.html#abbreviate(java.lang.String,%20int,%20int,%20java.lang.String)">abbreviate</a></b>
finds the first space after the lower limit and abbreviates the text.</p>
-<p><b>math.<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/math/IntRange.html#toArray()">IntRange</a>/<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/math/LongRange.html#toArray()">LongRange.toArray</a></b>
turn the range into an array of primitive <code>int</code>/<code>long</code>s
contained in the range.</p>
-<p><b>text.StrMatch.<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/text/StrMatcher.html#isMatch(char[],%20int)">isMatch(char[],
int)</a></b> is a helper method for checking whether there was a match with
the StrMatcher objects.</p>
-<p><b>time.DateFormatUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateFormatUtils.html";>format(Calendar,
...)</a></b> provide Calendar variants for the pre-existing format methods. If
these are new to you, they are helper methods to formatting a date.</p>
-<p><b>time.DateUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateUtils.html";>getFragment*</a>
methods</b> are used to splice the time element out of Date. If you have
<code>2008/12/13 14:57</code>, then these could, for example, pull out the
13.</p>
-<p><b>time.DateUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateUtils.html";>setXxx
methods</a></b> round off our walk through the methods - the setXxx variant of
the existing addXxx helper methods.</p>
+<p>CharSet <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/CharSet.html#getInstance(java.lang.String[])">getInstance(String[])</a>
adds an additional builder method by which you can build a CharSet from
multiple sets of characters at the same time. If you weren't aware of the
CharSet class, it holds a set of characters created by a simple pattern
language allowing constructs such as <code>"a-z"</code> and <code>"^a"</code>
(everything but 'a'). It's most used by the CharSetUtils class, and came out of
CharSetUtils.translate, a simple variant of the UNIX tr command.</p>
+<p>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html";>canonical
name</a> methods are akin to the non '<code>Canonical</code>' methods, except
they work with the more human readable <code>int[]</code> type names rather
than the JVM versions of <code>[I</code>. This makes them useful for parsing
input from developer's configuration files. </p>
+<p>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html#toClass(java.lang.Object[])">toClass(String[])</a>
is very easy to explain - it calls <code>toClass</code> on each
<code>Object</code> in the array and returns an array of <code>Class</code>
objects.</p>
+<p>ClassUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ClassUtils.html#wrappersToPrimitives(java.lang.Class[])">wrapper->primitive</a>
conversions are the reflection of the pre-existing
<code>primitiveToWrapper</code> methods. Again easy to explain, they turn an
array of <code>Integer</code> into an array of <code>int[]</code>.</p>
+<p>ObjectUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/ObjectUtils.html#identityToString(java.lang.StringBuffer,%20java.lang.Object)">identityToString(StringBuffer,
Object)</a> is the StringBuffer variant of the pre-existing
<code>identityToString</code> method. In case you've not met that before, it
produces the toString that would have been produced by an Object if it hadn't
been overridden.</p>
+<p>StringEscapeUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/StringEscapeUtils.html#escapeCsv(java.lang.String)">CSV
methods</a> are a new addition to our range of simple parser/printers. These,
quite as expected, parse and unparse CSV text as per <a
href="http://tools.ietf.org/html/rfc4180";>RFC-4180</a>.</p>
+<p>StringUtils has a host of new methods, as always, and we'll leave these for
later.</p>
+<p>WordUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/WordUtils.html#abbreviate(java.lang.String,%20int,%20int,%20java.lang.String)">abbreviate</a>
finds the first space after the lower limit and abbreviates the text.</p>
+<p>math.<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/math/IntRange.html#toArray()">IntRange</a>/<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/math/LongRange.html#toArray()">LongRange.toArray</a>
turn the range into an array of primitive <code>int</code>/<code>long</code>s
contained in the range.</p>
+<p>text.StrMatch.<a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/text/StrMatcher.html#isMatch(char[],%20int)">isMatch(char[],
int)</a> is a helper method for checking whether there was a match with the
StrMatcher objects.</p>
+<p>time.DateFormatUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateFormatUtils.html";>format(Calendar,
...)</a> provide Calendar variants for the pre-existing format methods. If
these are new to you, they are helper methods to formatting a date.</p>
+<p>time.DateUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateUtils.html";>getFragment*</a>
methods are used to splice the time element out of Date. If you have
<code>2008/12/13 14:57</code>, then these could, for example, pull out the
13.</p>
+<p>time.DateUtils <a
href="http://commons.apache.org/lang/api-release/org/apache/commons/lang/time/DateUtils.html";>setXxx
methods</a> round off our walk through the methods - the setXxx variant of the
existing addXxx helper methods.</p>
</section>
<section name="StringUtils methods">
@@ -174,8 +174,19 @@
</section>
+<section name="What's fixed in Lang 2.4?">
+<p>In addition to new things, there are the bugfixes. As you can tell from the
release notes, there are a good few - 24 in fact according to JIRA. Here are
some of the interesting ones: </p>
+<ul>
+<li><a href="http://issues.apache.org/jira/browse/LANG-393";>LANG-393</a> - We
fixed EqualsBuilder so that it understands that BigDecimals are equal even when
they think they're not. It seems very likely that usually you will want "29.0"
and "29.00" to be equal, even if BigDecimal disagrees. </li>
+<li><a href="http://issues.apache.org/jira/browse/LANG-380";>LANG-380</a> -
Chances are you'll know if you met this one. Fraction.reduce has an infinite
loop if the numerator is 0. </li>
+<li><a href="http://issues.apache.org/jira/browse/LANG-369";>LANG-369</a>, <a
href="http://issues.apache.org/jira/browse/LANG-367";>LANG-367</a>, <a
href="http://issues.apache.org/jira/browse/LANG-334";>LANG-334</a> - Threading
bugs - we improved how things work in concurrency situations for
ExceptionUtils, FastDateFormat and Enum. </li>
+<li><a href="http://issues.apache.org/jira/browse/LANG-346";>LANG-346</a> -
DateUtils.round was getting things wrong for minutes and seconds. </li>
+<li><a href="http://issues.apache.org/jira/browse/LANG-328";>LANG-328</a> -
LocaleUtils.toLocale was broken if there was no country code defined. </li>
+</ul>
+</section>
+
<section name="So long, farewell...">
-<p>Hopefully that was of interest. Don't forget to download <a
href="download_lang.cgi">Lang 2.4</a>, or, for the Maven repository users,
upgrade your <version> tag to 2.4. Please feel free to raise any
questions you might have on the <a href="mail-lists.html">mailing lists</a>,
and report bugs or enhancements in the <a href="issue-tracking.html">issue
tracker</a>.</p>
+<p>Hopefully that was all of interest. Don't forget to download <a
href="download_lang.cgi">Lang 2.4</a>, or, for the Maven repository users,
upgrade your <version> tag to 2.4. Please feel free to raise any
questions you might have on the <a href="mail-lists.html">mailing lists</a>,
and report bugs or enhancements in the <a href="issue-tracking.html">issue
tracker</a>.</p>
</section>
</section>
