one to one PK

HBProj77-OneToOneFK/target/classes/META-INF/maven/nit/HBProj75-ManyToManyBi/pom.properties

@@ -1,5 +1,5 @@
 #Generated by Maven Integration for Eclipse
-#Mon Apr 26 09:44:46 IST 2021
+#Thu Apr 29 09:13:13 IST 2021
 m2e.projectLocation=C\:\\Users\\Nareshit\\git\\NTHB915\\HBProj77-OneToOneFK
 m2e.projectName=HBProj77-OneToOneFK
 groupId=nit

HBProj78-OneToOnePK/target/classes/META-INF/maven/nit/HBProj75-ManyToManyBi/pom.properties

@@ -1,6 +1,6 @@
 #Generated by Maven Integration for Eclipse
-#Thu Apr 22 09:36:08 IST 2021
-m2e.projectLocation=G\:\\Worskpaces\\Hibernate\\NTHB915\\HBProj78-OneToOnePK
+#Thu Apr 29 09:13:17 IST 2021
+m2e.projectLocation=C\:\\Users\\Nareshit\\git\\NTHB915\\HBProj78-OneToOnePK
 m2e.projectName=HBProj78-OneToOnePK
 groupId=nit
 artifactId=HBProj75-ManyToManyBi

HBProj86Anno-ManyToManyBi-CollectionId/target/classes/META-INF/maven/nit/HBProj75-ManyToManyBi/pom.properties

@@ -1,6 +1,6 @@
 #Generated by Maven Integration for Eclipse
-#Mon Apr 26 09:08:43 IST 2021
-m2e.projectLocation=G\:\\Worskpaces\\Hibernate\\NTHB915\\HBProj86Anno-ManyToManyBi-CollectionId
+#Thu Apr 29 09:13:18 IST 2021
+m2e.projectLocation=C\:\\Users\\Nareshit\\git\\NTHB915\\HBProj86Anno-ManyToManyBi-CollectionId
 m2e.projectName=HBProj86Anno-ManyToManyBi-CollectionId
 groupId=nit
 artifactId=HBProj75-ManyToManyBi

HBProj87Anno-OneToOneFK/target/classes/META-INF/maven/nit/HBProj75-ManyToManyBi/pom.properties

@@ -1,6 +1,6 @@
 #Generated by Maven Integration for Eclipse
-#Mon Apr 26 09:45:06 IST 2021
-m2e.projectLocation=G\:\\Worskpaces\\Hibernate\\NTHB915\\HBProj87Anno-OneToOneFK
+#Thu Apr 29 09:13:19 IST 2021
+m2e.projectLocation=C\:\\Users\\Nareshit\\git\\NTHB915\\HBProj87Anno-OneToOneFK
 m2e.projectName=HBProj87Anno-OneToOneFK
 groupId=nit
 artifactId=HBProj75-ManyToManyBi

HBProj88Anno-OneToOnePK/.classpath

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" output="target/classes" path="src/main/java">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
+		<attributes>
+			<attribute name="optional" value="true"/>
+			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-14">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="target/classes"/>
+</classpath>

HBProj88Anno-OneToOnePK/.project

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>HBProj88Anno-OneToOnePK</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+	</natures>
+</projectDescription>

HBProj88Anno-OneToOnePK/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,4 @@
+eclipse.preferences.version=1
+encoding//src/main/java=UTF-8
+encoding//src/test/java=UTF-8
+encoding/<project>=UTF-8

HBProj88Anno-OneToOnePK/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,8 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=14
+org.eclipse.jdt.core.compiler.compliance=14
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
+org.eclipse.jdt.core.compiler.release=disabled
+org.eclipse.jdt.core.compiler.source=14

HBProj88Anno-OneToOnePK/.settings/org.eclipse.m2e.core.prefs

@@ -0,0 +1,4 @@
+activeProfiles=
+eclipse.preferences.version=1
+resolveWorkspaceProjects=true
+version=1

HBProj88Anno-OneToOnePK/pom.xml

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>nit</groupId>
+  <artifactId>HBProj75-ManyToManyBi</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+
+  <name>HBProj75-ManyToManyBi</name>
+  <!-- FIXME change it to the project's website -->
+  <url>http://www.example.com</url>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>14</maven.compiler.source>
+    <maven.compiler.target>14</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.11</version>
+      <scope>test</scope>
+    </dependency>
+    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-core -->
+<dependency>
+    <groupId>org.hibernate</groupId>
+    <artifactId>hibernate-core</artifactId>
+    <version>5.4.30.Final</version>
+</dependency>
+    <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-hikaricp -->
+<dependency>
+    <groupId>org.hibernate</groupId>
+    <artifactId>hibernate-hikaricp</artifactId>
+    <version>5.4.30.Final</version>
+</dependency>
+    <!-- https://mvnrepository.com/artifact/com.oracle.ojdbc/ojdbc8 -->
+<dependency>
+    <groupId>com.oracle.ojdbc</groupId>
+    <artifactId>ojdbc8</artifactId>
+    <version>19.3.0.0</version>
+</dependency>
+    <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
+<dependency>
+    <groupId>org.projectlombok</groupId>
+    <artifactId>lombok</artifactId>
+    <version>1.18.20</version>
+    <scope>provided</scope>
+</dependency>
+
+
+  </dependencies>
+
+  <build>
+    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
+      <plugins>
+        <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+        <plugin>
+          <artifactId>maven-clean-plugin</artifactId>
+          <version>3.1.0</version>
+        </plugin>
+        <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+        <plugin>
+          <artifactId>maven-resources-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>3.8.0</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-surefire-plugin</artifactId>
+          <version>2.22.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-jar-plugin</artifactId>
+          <version>3.0.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-install-plugin</artifactId>
+          <version>2.5.2</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.2</version>
+        </plugin>
+        <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+        <plugin>
+          <artifactId>maven-site-plugin</artifactId>
+          <version>3.7.1</version>
+        </plugin>
+        <plugin>
+          <artifactId>maven-project-info-reports-plugin</artifactId>
+          <version>3.0.0</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>

HBProj88Anno-OneToOnePK/src/main/java/com/nt/cfgs/hibernate.cfg.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE hibernate-configuration PUBLIC
+        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
+<hibernate-configuration>
+    <session-factory>
+         <!-- Connection properties (mandatory except driver class name) -->
+         <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
+         <property name="connection.url">jdbc:oracle:thin:@localhost:1521:xe</property>
+         <property name="connection.username">system</property>
+         <property name="connection.password">manager</property>
+
+         <!--  <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
+         <property name="connection.url">jdbc:mysql:///nthb915db</property>
+         <property name="connection.username">root</property>
+         <property name="connection.password">root</property>
+          -->
+
+             <!-- Connection provider to work with Proxool -->
+        <property name="connection.provider_class">org.hibernate.hikaricp.internal.HikariCPConnectionProvider</property>
+
+        <!-- HikariCP settings -->
+  <property name="hikari.connectionTimeout">50000</property> 
+ <property name="hibernate.hikari.minimumIdle">10</property>
+  <property name="hibernate.hikari.maximumPoolSize">20</property> 
+  <property name="hibernate.hikari.idleTimeout">30000</property> 
+
+
+         <!-- Hibernate properties (optional) -->
+         <property name="show_sql">true</property>
+         <property name="format_sql">true</property>
+         <property name="hbm2ddl.auto">update</property>
+          <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property>
+               <!-- mapping classes -->
+          <mapping class="com.nt.entity.Student"/>
+          <mapping class="com.nt.entity.LibraryMembership"/>
+    </session-factory>
+</hibernate-configuration>        

HBProj88Anno-OneToOnePK/src/main/java/com/nt/dao/OneToOnePKDAO.java

@@ -0,0 +1,9 @@
+package com.nt.dao;
+
+public interface OneToOnePKDAO {
+    public void saveDataUsingParent();
+    public void  loadDataUsingChild();
+    public void  removeDataUsingChild();
+
+
+}

HBProj88Anno-OneToOnePK/src/main/java/com/nt/dao/OneToOnePKDAOImpl.java

@@ -0,0 +1,83 @@
+package com.nt.dao;
+
+import java.time.LocalDateTime;
+import java.util.List;
+
+import javax.persistence.Query;
+
+import org.hibernate.HibernateException;
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+
+import com.nt.entity.LibraryMembership;
+import com.nt.entity.Student;
+import com.nt.utility.HibernateUtil;
+
+public class OneToOnePKDAOImpl implements OneToOnePKDAO {
+
+	@Override
+	public void saveDataUsingParent() {
+		Transaction tx=null;
+		try(Session ses=HibernateUtil.getSession()){
+			    //prepare objs
+			 Student s1=new Student("raja", "hyd",LocalDateTime.of(1990,10, 21, 5,50));
+			 Student s2=new Student("rajesh", "hyd",LocalDateTime.of(1991,11, 12, 5,50));
+			 LibraryMembership library1=new LibraryMembership("gold", "Miss.Karnua",LocalDateTime.now(), LocalDateTime.of(2041,4,21,9,22));
+			 LibraryMembership library2=new LibraryMembership("silver", "Miss.Karnua",LocalDateTime.now(), LocalDateTime.of(2031,1,21,9,22));
+			 s1.setLibraryDetails(library1); library1.setStudentDetails(s1);
+			 s2.setLibraryDetails(library2);  library2.setStudentDetails(s2);
+			  tx=ses.beginTransaction();
+			    ses.save(s1); ses.save(s2);
+			  tx.commit();
+			  System.out.println("Objects are saved");
+		}
+		catch(HibernateException he) {
+			 he.printStackTrace();
+			if(tx!=null || tx.getStatus()!=null || tx.getRollbackOnly() ) {
+				tx.rollback();
+			System.out.println("objects are not saved");
+			}
+		}
+
+	}
+
+	@Override
+	public void loadDataUsingChild() {
+		Transaction tx=null;
+		try(Session ses=HibernateUtil.getSession()){
+			//prepare and execute query
+			Query query=ses.createQuery("from LibraryMembership");
+			List<LibraryMembership> list=query.getResultList();
+			list.forEach(lib->{
+			   System.out.println("child ::"+lib);
+			   Student st=lib.getStudentDetails();
+			  System.out.println("parent ::"+st);
+			});
+		}//try
+		catch(HibernateException he) {
+		     he.printStackTrace();
+			}
+		}//method
+
+	@Override
+	public void removeDataUsingChild() {
+		Transaction tx=null;
+		try(Session ses=HibernateUtil.getSession()){
+               //Load child object
+			   LibraryMembership lib=ses.get(LibraryMembership.class,1);
+			   tx=ses.beginTransaction();
+			         ses.delete(lib);
+			   tx.commit();
+			   System.out.println("child and its associated parent obj is deleted");
+		}
+		catch(HibernateException he) {
+			 he.printStackTrace();
+			if(tx!=null || tx.getStatus()!=null || tx.getRollbackOnly() ) {
+				tx.rollback();
+			System.out.println("objects are not deleted");
+			}
+		}
+
+	}
+
+}//class