ssklogs

SELECT *
  FROM   java.io.File
  WHERE  name $LIKE "%.html"
  AND    lastModified BETWEEN toDate('01-12-2004')
                      AND toDate('31-12-2004')

• SPF - Sender Policy Framework - to authorize, usage of domain names
  

• Domain Keys- uses public key cryptography
  

• Auto loading of JDBC drivers

• Access to ROW ID

• SQL/XML support

• Nokia has 6136 phone which can do both GSM and WiFi

• Barablu has their client for Nokia 9500

• Microsoft has free internet voice service for mobile phones in their upcoming Microsoft Office Communicator

• Skype for Pocket PC
  

• Annotations support for easier programming

• In web.xml, multi servlet mapping to filters using wildcard

• In web.xml, multi URL patterns mapping to servlet names

• If the Database supports paging directly, then its the most efficient way to do it. For e.g Oracle has a feature of returning rownum with the results. Using this a select query can do paging based on the total count of rows

• If the JDBC driver for the DB, supports Scrollable ResultSets (JDBC 2.0), then its more easier and DB independent

• If an ORM tool is used, it may take care of underlying database specific details. For eg Hibernate provides a more simplified usage using Query API (it still internally uses JDBC)

• Last option is to just get the data and cache it in user`s session e.g HttpSession. This approach eats memory and may provide stale data

• LB polling: In this method, the LB keeps checking the server IP/port, whether its up or not. This is a very basic health check

• Custom LB polling: A server application may still be down or hung, eventhough the IP/port is responding. To cover this case, most load balancers supports custom scripts to be executed. These scripts can contain application specific checks e.g. for SIP load balancing, it can issue a SIP request and check the response

• DFP (Dynamic Feedback Protocol) by Cisco
  

• SASP (Server Application State Protocol) by IBM

• Use JAXB for data binding. Earlier if u do need JAXB, the XML schema cannot be embedded in the WSDL itself, as JAX-RPC creates its own binding. One work around is to accept the XML as String and marshall/unmarshall it using JAXB

• support for new W3C WebService standards

• Annotations for Java<->WSDL mapping

• JSR 183 (WS Security)

• non-HTTP transports

• If core files are not needed , set "ulimit -c 0", else set the required size using "ulimit -c <size>"

• To set destination dir/pattern for core files, use "sysctl -w kernel.core_pattern=<pattern>". Refer to "man proc" for more details on patterns
  

• To make a program purposely "core dump" , send SIGSEV signal to it , by using "kill -s SIGSEGV <pid>"