From 322091376724f52ecfe539ddd349e601abb551ea Mon Sep 17 00:00:00 2001 From: Shaimaa Shalaby Date: Sun, 1 Oct 2017 23:53:09 +0200 Subject: [PATCH] From JDO to XML and Back Again 2/3 (#2681) * From JDO to XML and Back Again 2/3 * remove comments * remove myapp class * divided into methods * remove main methods * remove classes --- .../com/baeldung/jdo/xml/AnnotadedPerson.java | 72 ++++++++++++ .../main/java/com/baeldung/jdo/xml/MyApp.java | 105 ++++++++++++++++++ .../java/com/baeldung/jdo/xml/Person.java | 65 +++++++++++ .../java/com/baeldung/jdo/xml/Product.java | 58 ++++++++++ .../resources/META-INF/datanucleus.properties | 4 + .../src/main/resources/META-INF/jdoconfig.xml | 17 +++ .../src/main/resources/META-INF/package.jdo | 21 ++++ 7 files changed, 342 insertions(+) create mode 100644 libraries/src/main/java/com/baeldung/jdo/xml/AnnotadedPerson.java create mode 100644 libraries/src/main/java/com/baeldung/jdo/xml/MyApp.java create mode 100644 libraries/src/main/java/com/baeldung/jdo/xml/Person.java create mode 100644 libraries/src/main/java/com/baeldung/jdo/xml/Product.java create mode 100644 libraries/src/main/resources/META-INF/datanucleus.properties create mode 100644 libraries/src/main/resources/META-INF/jdoconfig.xml create mode 100644 libraries/src/main/resources/META-INF/package.jdo diff --git a/libraries/src/main/java/com/baeldung/jdo/xml/AnnotadedPerson.java b/libraries/src/main/java/com/baeldung/jdo/xml/AnnotadedPerson.java new file mode 100644 index 0000000000..53e86524a5 --- /dev/null +++ b/libraries/src/main/java/com/baeldung/jdo/xml/AnnotadedPerson.java @@ -0,0 +1,72 @@ +package com.baeldung.jdo.xml; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.jdo.annotations.Element; +import javax.jdo.annotations.PersistenceCapable; +import javax.jdo.annotations.PrimaryKey; +import javax.xml.bind.annotation.XmlAttribute; +import javax.xml.bind.annotation.XmlElement; +import javax.xml.bind.annotation.XmlElementWrapper; + +@PersistenceCapable( + schema="/myproduct/people", + table="person" + ) +public class AnnotadedPerson { + @XmlAttribute + private long personNum; + + @PrimaryKey + private String firstName; + private String lastName; + + @XmlElementWrapper(name="phone-numbers") + @XmlElement(name="phone-number") + @Element(types=String.class) + private List phoneNumbers = new ArrayList(); + + + public AnnotadedPerson(long personNum, String firstName, String lastName) { + super(); + this.personNum = personNum; + this.firstName = firstName; + this.lastName = lastName; + } + + public long getPersonNum() { + return personNum; + } + + public void setPersonNum(long personNum) { + this.personNum = personNum; + } + + public String getFirstName() { + return firstName; + } + + public void setFirstName(String firstName) { + this.firstName = firstName; + } + + public String getLastName() { + return lastName; + } + + public void setLastName(String lastName) { + this.lastName = lastName; + } + + public List getPhoneNumbers() { + return phoneNumbers; + } + + public void setPhoneNumbers(List phoneNumbers) { + this.phoneNumbers = phoneNumbers; + } + +} diff --git a/libraries/src/main/java/com/baeldung/jdo/xml/MyApp.java b/libraries/src/main/java/com/baeldung/jdo/xml/MyApp.java new file mode 100644 index 0000000000..97ec49eec1 --- /dev/null +++ b/libraries/src/main/java/com/baeldung/jdo/xml/MyApp.java @@ -0,0 +1,105 @@ +package com.baeldung.jdo.xml; + +import java.util.List; + +import javax.jdo.JDOHelper; +import javax.jdo.PersistenceManager; +import javax.jdo.PersistenceManagerFactory; +import javax.jdo.Query; +import javax.jdo.Transaction; + +import org.datanucleus.api.jdo.JDOPersistenceManagerFactory; +import org.datanucleus.metadata.PersistenceUnitMetaData; + +public class MyApp { + + private static PersistenceUnitMetaData pumd; + private static PersistenceManagerFactory pmf; + private static PersistenceManager pm; + + public static void main( String[] args ) { + + //persist product object using dynamic persistence unit + defineDynamicPersistentUnit(); + Product product = new Product("id1","Sony Discman", "A standard discman from Sony", 49.99); + persistObject(product); + closePersistenceManager(); + + //persist AnnotatedPerson object using named pmf + defineNamedPersistenceManagerFactory("XmlDatastore"); + AnnotadedPerson annotatedPerson = new AnnotadedPerson(654320,"annotated","person"); + annotatedPerson.getPhoneNumbers().add("999999999"); + annotatedPerson.getPhoneNumbers().add("000000000"); + persistObject(annotatedPerson); + queryAnnotatedPersonsInXML(); + closePersistenceManager(); + + //persist Person object using PMF created by properties file + definePersistenceManagerFactoryUsingPropertiesFile("META-INF\\datanucleus.properties"); + Person person = new Person(654321,"bealdung","author"); + person.getPhoneNumbers().add("123456789"); + person.getPhoneNumbers().add("987654321"); + persistObject(person); + queryPersonsInXML(); + closePersistenceManager(); + } + + public static void defineDynamicPersistentUnit(){ + + PersistenceUnitMetaData pumd = new PersistenceUnitMetaData("dynamic-unit", "RESOURCE_LOCAL", null); + pumd.addProperty("javax.jdo.option.ConnectionURL", "xml:file:myfile_dynamicPMF.xml"); + pumd.addProperty("datanucleus.schema.autoCreateAll", "true"); + pumd.addProperty("datanucleus.xml.indentSize", "4"); + + pmf = new JDOPersistenceManagerFactory(pumd, null); + pm = pmf.getPersistenceManager(); + } + + public static void defineNamedPersistenceManagerFactory(String pmfName){ + + pmf = JDOHelper.getPersistenceManagerFactory("XmlDatastore"); + pm = pmf.getPersistenceManager(); + } + + public static void definePersistenceManagerFactoryUsingPropertiesFile(String filePath){ + + pmf = JDOHelper.getPersistenceManagerFactory(filePath); + pm = pmf.getPersistenceManager(); + } + + public static void closePersistenceManager(){ + + if(pm!=null && !pm.isClosed()){ + pm.close(); + } + } + + public static void persistObject(Object obj){ + + Transaction tx = pm.currentTransaction(); + + try { + tx.begin(); + pm.makePersistent(obj); + tx.commit(); + } finally { + if (tx.isActive()) { + tx.rollback(); + } + } + } + + public static void queryPersonsInXML(){ + + Query query = pm.newQuery(Person.class); + List result = query.executeList(); + System.out.println("name: "+result.get(0).getFirstName()); + } + + public static void queryAnnotatedPersonsInXML(){ + + Query query = pm.newQuery(AnnotadedPerson.class); + List result = query.executeList(); + System.out.println("name: "+result.get(0).getFirstName()); + } +} diff --git a/libraries/src/main/java/com/baeldung/jdo/xml/Person.java b/libraries/src/main/java/com/baeldung/jdo/xml/Person.java new file mode 100644 index 0000000000..e3ec5c6bab --- /dev/null +++ b/libraries/src/main/java/com/baeldung/jdo/xml/Person.java @@ -0,0 +1,65 @@ +package com.baeldung.jdo.xml; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.jdo.annotations.Element; +import javax.jdo.annotations.PersistenceCapable; +import javax.jdo.annotations.PrimaryKey; +import javax.xml.bind.annotation.XmlAttribute; +import javax.xml.bind.annotation.XmlElement; +import javax.xml.bind.annotation.XmlElementWrapper; + + +@PersistenceCapable +public class Person { + private long personNum; + + @PrimaryKey + private String firstName; + private String lastName; + + private List phoneNumbers = new ArrayList(); + + public Person(long personNum, String firstName, String lastName) { + super(); + this.personNum = personNum; + this.firstName = firstName; + this.lastName = lastName; + } + + public long getPersonNum() { + return personNum; + } + + public void setPersonNum(long personNum) { + this.personNum = personNum; + } + + public String getFirstName() { + return firstName; + } + + public void setFirstName(String firstName) { + this.firstName = firstName; + } + + public String getLastName() { + return lastName; + } + + public void setLastName(String lastName) { + this.lastName = lastName; + } + + public List getPhoneNumbers() { + return phoneNumbers; + } + + public void setPhoneNumbers(List phoneNumbers) { + this.phoneNumbers = phoneNumbers; + } + +} diff --git a/libraries/src/main/java/com/baeldung/jdo/xml/Product.java b/libraries/src/main/java/com/baeldung/jdo/xml/Product.java new file mode 100644 index 0000000000..d8d3bb17b2 --- /dev/null +++ b/libraries/src/main/java/com/baeldung/jdo/xml/Product.java @@ -0,0 +1,58 @@ +package com.baeldung.jdo.xml; + +import javax.jdo.annotations.IdGeneratorStrategy; +import javax.jdo.annotations.PersistenceAware; +import javax.jdo.annotations.PersistenceCapable; +import javax.jdo.annotations.Persistent; +import javax.jdo.annotations.PrimaryKey; + +@PersistenceCapable +public class Product { + + @PrimaryKey + String id; + String name; + String description; + double price; + + public Product(){ + + } + + public Product(String id,String name,String description,double price){ + this.id = id; + this.name=name; + this.description = description; + this.price = price; + } + + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getName() { + return name; + } + public void setName(String name) { + this.name = name; + } + public String getDescription() { + return description; + } + public void setDescription(String description) { + this.description = description; + } + public double getPrice() { + return price; + } + public void setPrice(double price) { + this.price = price; + } + + +} diff --git a/libraries/src/main/resources/META-INF/datanucleus.properties b/libraries/src/main/resources/META-INF/datanucleus.properties new file mode 100644 index 0000000000..a3cd4a450a --- /dev/null +++ b/libraries/src/main/resources/META-INF/datanucleus.properties @@ -0,0 +1,4 @@ +javax.jdo.PersistenceManagerFactoryClass=org.datanucleus.api.jdo.JDOPersistenceManagerFactory +javax.jdo.option.ConnectionURL= xml:file:myfile-ds.xml +datanucleus.xml.indentSize=6 +datanucleus.schema.autoCreateAll=true \ No newline at end of file diff --git a/libraries/src/main/resources/META-INF/jdoconfig.xml b/libraries/src/main/resources/META-INF/jdoconfig.xml new file mode 100644 index 0000000000..77da460686 --- /dev/null +++ b/libraries/src/main/resources/META-INF/jdoconfig.xml @@ -0,0 +1,17 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/libraries/src/main/resources/META-INF/package.jdo b/libraries/src/main/resources/META-INF/package.jdo new file mode 100644 index 0000000000..d30207e2e0 --- /dev/null +++ b/libraries/src/main/resources/META-INF/package.jdo @@ -0,0 +1,21 @@ + + + + + + + + + + + + + + + + + \ No newline at end of file