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Hibernate ucp sample (oracle-samples#345)
* Sample hibernate application to configure ucp as a datasource * Update Readme.md * Update pom.xml * Made some fixes to the propeties * Made some fixes to the propeties * fixed the dependency scope * Fixed the properties in config file and proeprties file * Fixed ucp dependency * Removed hibernate.cfg.xml file and adjusted properties in hibernate.properties file. Updated dependency library versions in pom.xml
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‎java/hibernate-ucp/Readme.md

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# Hibernate UCP Sample
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This is a hibernate sample that uses Universal Connection Pool(UCP). The sample creates an hibernate application and configures ucp through config/properties file..
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# Main Components of the code
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* **HibernateUCPSample**: This is the main class where we have the methods to get a connection from UCP pool configured through the properties file.
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* **pom.xml**: Maven build script with all the necessary dependencies for the application to run.
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* **application.properties**: Contains all the database specific details such as database URL, database username, database password etc., This also contains all the properties to UCP as a datasource.

‎java/hibernate-ucp/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.oracle</groupId>
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<artifactId>hibernate-ucp-sample</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>11</maven.compiler.source>
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<maven.compiler.target>11</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.jboss.logging</groupId>
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<artifactId>jboss-logging</artifactId>
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<version>3.5.3.Final</version>
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<scope>compile</scope>
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</dependency>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-core</artifactId>
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<version>6.2.2.Final</version>
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</dependency>
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<dependency>
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<groupId>org.hibernate.orm</groupId>
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<artifactId>hibernate-testing</artifactId>
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<version>6.2.2.Final</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ojdbc11</artifactId>
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<version>23.4.0.24.05</version>
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<scope>compile</scope>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ucp11</artifactId>
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<version>23.4.0.24.05</version>
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<scope>compile</scope>
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</dependency>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-ucp</artifactId>
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<version>6.5.0.Final</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>3.1.2</version>
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</plugin>
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</plugins>
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</build>
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</project>

‎java/hibernate-ucp/src/main/java/com/oracle/hibernate/ucp/HibernateUCPSample.java

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package com.oracle.hibernate.ucp;
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import org.hibernate.HibernateException;
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import org.hibernate.Session;
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import org.hibernate.SessionFactory;
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import org.hibernate.boot.Metadata;
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import org.hibernate.boot.MetadataSources;
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import org.hibernate.boot.registry.StandardServiceRegistry;
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import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
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import org.hibernate.jdbc.Work;
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import java.sql.Connection;
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import java.sql.SQLException;
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public class HibernateUCPSample {
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public static void main( String[] args ) throws HibernateException {
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StandardServiceRegistry ssr = new StandardServiceRegistryBuilder().build();
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Metadata meta = new MetadataSources(ssr).getMetadataBuilder().build();
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SessionFactory factory = meta.getSessionFactoryBuilder().build();
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Session session = factory.openSession();
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session.doWork(new Work() {
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public void execute(Connection con) throws SQLException {
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// Prints the UCP proxy class, indicating that UCP is configured as a datasource
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System.out.println("Connection class: " + con.getClass());
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}
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});
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factory.close();
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session.close();
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}
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}

‎java/hibernate-ucp/src/main/resources/hibernate.properties

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# mandatory properties to configure UCP
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hibernate.connection.url=url
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hibernate.connection.username=user
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hibernate.connection.password=password
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hibenrate.connection.driver_class=oracle.jdbc.OracleDriver
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hibernate.oracleucp.connectionFactoryClassName=oracle.jdbc.datasource.impl.OracleDataSource
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# all the following properties are optional, should be configured based on the requirement
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hibernate.oracleucp.initialPoolSize=3
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hibernate.oracleucp.minPoolSize=3
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hibernate.oracleucp.maxPoolSize=5
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hibernate.oracleucp.connectionPoolName=testucppool
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hibernate.oracleucp.dataSourceName=myDatabaseSource1
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# this syntax has to be followed for properties
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hibernate.oracleucp.connectionProperties={autoCommit=false}
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#hibernate.oracleucp.connectionFactoryProperties={prop1=val1, prop2=val2, propN=valN}
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hibernate.oracleucp.fastConnectionFailoverEnabled=false
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hibernate.oracleucp.validateConnectionOnBorrow=true
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hibernate.oracleucp.secondsToTrustIdleConnection=120
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hibernate.oracleucp.inactiveConnectionTimeout=180
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hibernate.oracleucp.maxStatements=20
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hibernate.oracleucp.connectionWaitTimeout=30

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