Posts Tagged ‘java’

Full-import http://<host>:<port>/solr/dataimport?command=full-import Delta-import http://<host>:<port>/solr/dataimport?command=delta-import status http://<host>:<port>/solr/dataimport reload-config http://<host>:<port>/solr/dataimport?command=reload-config abort http://<host>:<port>/solr/dataimport?command=abort  

Jan 19th, 2012 | Filed under java
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I found an interesting link which helped me to speed up the eclipse loading time. Let me know if that helped you.

Nov 8th, 2011 | Filed under java, linux

Using JNDI javax.naming.Context context = new javax.naming.InitialContext(); javax.sql.DataSource ds =  (javax.sql.DataSource) context.lookup(“java:comp/env/jdbc/XXXJNDINAMEXXX”); java.sql.Connection con = ds.getConnection();

Jan 14th, 2009 | Filed under java, oracle
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The only way I could figure out to get the distinct list using Hibernate Criteria is by using ResultTransformer function. eg. List result = session.createCriteria(Order.class)         .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY)         ——-         .list(); The con is it fetches all the objects and then filters it. (very time consuming) The only way to circumvent this problem is to write query using […]

Apr 3rd, 2008 | Filed under hibernate, java

public String replaceAll(String regex, String replacement) This method works fine if replacement string does not contain ‘$’ or ‘/’ characters.If replacement string contains these characters, the results can be in-accurate. Fix: Use Matcher.quoteReplacement(replacement) public String replaceAll(String regex,         Matcher.quoteReplacement(replacement))

Mar 12th, 2008 | Filed under java

For System Wide settings To see the settings for maximum open files for the OS level, use following command. cat /proc/sys/fs/file-max This should be a value from 36000 to 50000 or more. To increase the system wide maximum open files, as root edit the /etc/sysctl.conf and add the following to the end of the file. […]

Jan 18th, 2008 | Filed under java, linux
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for original post go here. Strong references First I need to start with a refresher on strong references. A strong reference is an ordinary Java reference, the kind you use every day. For example, the code: StringBuffer buffer = new StringBuffer(); creates a new StringBuffer() and stores a strong reference to it in the variable […]

Oct 24th, 2007 | Filed under java

Using the in-built zip function of java, attached is a sample code to copy a folder and all its sub-folders into a zip file. Java Program to Zip a folder This program uses Commons IO – IOUtils library to copy files.

Sep 18th, 2007 | Filed under java

Google provides a feed url to check your new mail(s) in your inbox. The url is You would need to authenticate first with your gmail username and password and it will list the unread email(s). I was reading about Rome and thought to write a small program utilizing its features to read my gmail […]

Sep 17th, 2007 | Filed under java
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Struts uses ActionForm to both populate a HTML form, and then to capture the parameters when a form is submitted. When a request is submitted, the ActionServlet matches the URI for the request against the path of an action-mapping. If there is a form-bean for that action-mapping, it looks for an ActionForm under the form-bean […]

Aug 17th, 2007 | Filed under struts
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