Tec Bar » Java

Lock in Java

James — Wed, 22 Jul 2015 19:20:22 +0000

In the previous post (Synchronized vs ReentrantLock in Java) , we have discussed the difference between synchronized and ReentrantLock. The keyword synchronized can be widely used in many multi-threaded environments. However, there are some drawbacks when using synchronized. The use of … Continue reading →

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How to Optimize Tomcat Performance

James — Tue, 31 Mar 2015 23:20:01 +0000

The default Tomcat configuration looks powerful and hassle-free to the 1st time users. However, it is not customized for the real work where high server load can be expected. Therefore, it is important to optimize Tomcat performance by setting customization … Continue reading →

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Hibernate Session

James — Tue, 24 Feb 2015 23:26:38 +0000

The main function of a Hibernate session is to open a database connection, and offer read and update operations for instances. Each instance object associated with the session will keep alive until the session is closed or the object is … Continue reading →

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JDBC CallableStatement

James — Mon, 23 Feb 2015 21:43:09 +0000

A CallableStatement is used to call stored procedures in a database. The post (“JDBC Batch Update”) will give a simple example, and show how to use JDBC CallableStatement to call stored procedures. Example: [crayon-69f3bd610d1c6456681096/]

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JDBC Batch Update

James — Sun, 22 Feb 2015 07:34:17 +0000

The post (“JDBC Batch Update”) will give an example, and show how to use JDBC batch update. Example [crayon-69f3bd610d50f170081517/]

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JDBC Delete Record Using PreparedStatement

James — Sun, 22 Feb 2015 06:52:18 +0000

The post (“JDBC Delete Record Using PreparedStatement”) will give an example, and show how to delete a record using PreparedStatement. Example: [crayon-69f3bd610d84e972815554/]

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JDBC Delete Record Using Statement

James — Sun, 22 Feb 2015 06:45:23 +0000

The post (“JDBC Delete Record Using Statement”) will give an example, and show how to delete a record using Statement. Example [crayon-69f3bd610dda4249689116/]

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JDBC Update Record Using PreparedStatement

James — Sat, 21 Feb 2015 01:53:47 +0000

The post (“JDBC Update Record Using PreparedStatement”) will give an example, and show how to update records using JDBC PreparedStatement. Example [crayon-69f3bd610e0de625649337/]

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JDBC Update Records Using Statement

James — Sat, 21 Feb 2015 01:45:17 +0000

The post (“JDBC Update Records”) will give an example, and show how to update records. Example: [crayon-69f3bd610e43a464682776/]

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JDBC Select Records

James — Fri, 20 Feb 2015 23:43:25 +0000

The post (“JDBC Select Records”) will give an example, and show how to select and parse records. Example: [crayon-69f3bd610e962466914085/]

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