Hi Matt,
thanks a lot for your help, you raw my mind (and filled the lack of my
poor English)!!!
All the best, have a nice day!
Simo

http://people.apache.org/~simonetripodi/
http://www.99soft.org/



On Thu, May 12, 2011 at 2:50 PM, Matt Benson <gudnabr...@gmail.com> wrote:
> On Thu, May 12, 2011 at 5:04 AM, sebb <seb...@gmail.com> wrote:
>> On 12 May 2011 09:07,  <simonetrip...@apache.org> wrote:
>>> Author: simonetripodi
>>> Date: Thu May 12 08:07:43 2011
>>> New Revision: 1102197
>>>
>>> URL: http://svn.apache.org/viewvc?rev=1102197&view=rev
>>> Log:
>>> since Digester is not thread safe, better switching from StringBuffer to 
>>> StringBuilder that's faster
>>>
>>> Modified:
>>>    commons/sandbox/digester3/trunk/src/examples/api/addressbook/Address.java
>>>    
>>> commons/sandbox/digester3/trunk/src/examples/api/dbinsert/RowInserterRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/examples/api/document-markup/MarkupDigester.java
>>>    
>>> commons/sandbox/digester3/trunk/src/examples/plugins/pipeline/SubstituteTransform.java
>>>    
>>> commons/sandbox/digester3/trunk/src/examples/xmlrules/addressbook/Address.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/BeanPropertySetterRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallMethodRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/CallParamRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/Digester.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/FactoryCreateRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/NodeCreateRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectCreateRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/ObjectParamRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/PathCallParamRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetNestedPropertiesRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetNextRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertiesRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetPropertyRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetRootRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/SetTopRule.java
>>>    
>>> commons/sandbox/digester3/trunk/src/main/java/org/apache/commons/digester3/xmlrules/DigesterRuleParser.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/Address.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/Box.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/CallMethodRuleTestCase.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/Employee.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/LocationTrackerTestCase.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/ObjectParamRuleTestCase.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/OverlappingCallMethodRuleTestCase.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/SimpleTestBean.java
>>>    
>>> commons/sandbox/digester3/trunk/src/test/java/org/apache/commons/digester3/plugins/TestXmlRuleInfo.java
>>>
>>> Modified: 
>>> commons/sandbox/digester3/trunk/src/examples/api/addressbook/Address.java
>>> URL: 
>>> http://svn.apache.org/viewvc/commons/sandbox/digester3/trunk/src/examples/api/addressbook/Address.java?rev=1102197&r1=1102196&r2=1102197&view=diff
>>> ==============================================================================
>>> --- 
>>> commons/sandbox/digester3/trunk/src/examples/api/addressbook/Address.java 
>>> (original)
>>> +++ 
>>> commons/sandbox/digester3/trunk/src/examples/api/addressbook/Address.java 
>>> Thu May 12 08:07:43 2011
>>> @@ -30,7 +30,7 @@ public class Address {
>>>     private String country;
>>>
>>>     public String toString() {
>>> -        StringBuffer sb = new StringBuffer();
>>> +        StringBuilder sb = new StringBuilder();
>>>         sb.append( " address (type "+ type + ")\n");
>>>         sb.append( "       " + street + "\n");
>>>         sb.append( "       " + city + " " + state + " " + zip + "\n");
>>> @@ -39,7 +39,7 @@ public class Address {
>>>     }
>>>
>>
>> BTW, thread-safety is not an issue for local variables (unless you
>> publish them e.g. by returning them).
>> In this case, the StringBuilder is converted to a thread-safe String
>> before publication.
>>
>
> I think Simo's actual meaning was along the lines of the more verbose
> "since all the String building takes place locally and there is no
> need for thread-safety on the builder object, switch to the faster
> StringBuilder per that class's explicitly stated purpose in being."
>
> Matt
>
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