Neoview JDBC Type 4 Driver API Reference (R2.2, R2.3, R2.4, R2.5)

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com.hp.t4jdbc

Class HPT4DataSource

java.lang.Object

com.hp.t4jdbc.T4Properties

com.hp.t4jdbc.T4DSProperties

com.hp.t4jdbc.HPT4DataSource

All Implemented Interfaces:

javax.sql.DataSource, javax.naming.Referenceable, java.io.Serializable

public class HPT4DataSource

extends T4DSProperties

implements javax.sql.DataSource, java.io.Serializable, javax.naming.Referenceable

HP JDBC Type 4 Driver DataSource class.

Description: A DataSource object is a factory for Connection objects. An object that implements the DataSource

interface is typically registered with a JNDI service provider. A JDBC driver that is accessed through the DataSource

API does not automatically register itself with the DriverManager object.

The HPT4DataSource class can provide connection pooling and statement pooling features.

Setting properties for the HPT4DataSource in the Type 4 driver

HPT4DataSource ds = new HPT4DataSource();

ds.setUrl("jdbc:hpt4jdbc://:/:");

ds.setCatalog("your catalog");

ds.setSchema("your schema");

ds.setUser("user name");

ds.setPassword("user password");

// Following are optional properties

ds.setConnectionTimeout("timeout in seconds");

ds.setT4LogFile("your log file location");

ds.setT4LogLevel("SEVERE");

ds.setServerDataSource("NDCS datasource name");

// Properties relevant for Type 4 connection pooling.

// Set ds.setMaxPoolSize(-1) to turn OFF connection pooling

ds.setMaxPoolSize("number of connections required");

ds.setMinPoolSize("number of connections required");

// Properties relevant for Type 4 statement pooling.

// Set ds.setMaxStatement(0) to turn statement pooling OFF

// Statement pooling is enabled only when connection pooling is enabled.

ds.setMaxStatements("number of statements to be pooled");

Programmatically registering HPT4DataSource with JDNI

java.util.Hashtable env = new java.util.Hashtable();

env.put(Context.INITIAL_CONTEXT_FACTORY, "Factory class name here");

javax.naming.Context ctx = new javax.naming.InitialContext(env);

ctx.rebind("DataSource name here", ds);

Application making Type4 connection using the DataSource from JDNI

java.util.Hashtable env = new java.util.Hashtable();