Mao Mao Dou Dou

JPA is a specification defined for java by sun. It does not provide any implementation. It was originally developed by EJB 3.0 software expert group, but it is not limited to EJB software components.

Hibernate has an implementation of JPA.

TBC

zip -r output.zip input -x “\*\*/.svn\*\*”
zip -r output.zip input -x “\*.git\*”

__str.matches(“\\\d+”);__
d+ –> one or more digits
It allows starting with 0, eg. 0000124

__str.matches(“^[1-9]\\\d+”);__
It doesn’t allow starting with 0

Problem: Folder archive and replicated to target server are out of sequence

Solution 1:
Update the timestamp of collections record, this will trigger a new round of archiving.

Solution 2:

1. Go to content server -> Admin Applet -> Archiver;
2. Open your archive in the list
3. In the transfer to tab, disable automated transfer
4. Made change in your collections record, then exam the batch file created.
5. I found that in the batch view generated, one column is missing for the consumption server database.
6. Add in the missing column.
7. Re-test works.

open the file
press v
shift + g
press d

For Apache HTTP server, this can be done by turning on the URL rewriting engine and specifying some rewriting rules.
Create .htaccess file and located it under project folder in webroot.

RewriteEngine on

\# if a directory or a file exists, use it directly
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

\# otherwise forward it to index.php
RewriteRule . index.php

#####Save as in VIM, there are two ways – ( Assumed that I’m editing a.txt. )
**:w b.txt** will write a.txt’s content to the file b.txt while keeping a.txt as the opened buffer in vim.
**:sav b.txt** will first write a.txt’s content to the file b.txt, then close buffer a.txt, finally open b.txt as the current buffer.