Examples with JDOPersistenceManagerFactory org.datanucleus.api.jdo.JDOPersistenceManagerFactory used on opensource projects

Example 21 with JDOPersistenceManagerFactory

use of org.datanucleus.api.jdo.JDOPersistenceManagerFactory in project hive by apache.

the class TestHiveMetaStore method getJDOPersistanceManagerCacheSize.

private static int getJDOPersistanceManagerCacheSize() {
    JDOPersistenceManagerFactory jdoPmf;
    Set<JDOPersistenceManager> pmCacheObj;
    Field pmCache;
    Field pmf;
    try {
        pmf = ObjectStore.class.getDeclaredField("pmf");
        if (pmf != null) {
            pmf.setAccessible(true);
            jdoPmf = (JDOPersistenceManagerFactory) pmf.get(null);
            pmCache = JDOPersistenceManagerFactory.class.getDeclaredField("pmCache");
            if (pmCache != null) {
                pmCache.setAccessible(true);
                pmCacheObj = (Set<JDOPersistenceManager>) pmCache.get(jdoPmf);
                if (pmCacheObj != null) {
                    return pmCacheObj.size();
                }
            }
        }
    } catch (Exception ex) {
        System.out.println(ex);
    }
    return -1;
}

Example 22 with JDOPersistenceManagerFactory

use of org.datanucleus.api.jdo.JDOPersistenceManagerFactory in project tutorials by eugenp.

the class GuideToJDO method ListProducts.

@SuppressWarnings({ "rawtypes", "unchecked" })
public void ListProducts() {
    PersistenceManagerFactory pmf = new JDOPersistenceManagerFactory(pumd, null);
    PersistenceManager pm = pmf.getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
        tx.begin();
        Query q = pm.newQuery("SELECT FROM " + Product.class.getName() + " WHERE price > 10");
        List<Product> products = (List<Product>) q.execute();
        Iterator<Product> iter = products.iterator();
        while (iter.hasNext()) {
            Product p = iter.next();
            LOGGER.log(Level.WARNING, "Product name: {0} - Price: {1}", new Object[] { p.name, p.price });
        }
        LOGGER.log(Level.INFO, "--------------------------------------------------------------");
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        pm.close();
    }
}

Example 23 with JDOPersistenceManagerFactory

use of org.datanucleus.api.jdo.JDOPersistenceManagerFactory in project tutorials by eugenp.

the class GuideToJDO method listXMLProducts.

@SuppressWarnings({ "rawtypes", "unchecked" })
public void listXMLProducts() {
    PersistenceManagerFactory pmf = new JDOPersistenceManagerFactory(pumdXML, null);
    PersistenceManager pm = pmf.getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
        tx.begin();
        Query q = pm.newQuery("SELECT FROM " + ProductXML.class.getName());
        List<ProductXML> products = (List<ProductXML>) q.execute();
        Iterator<ProductXML> iter = products.iterator();
        while (iter.hasNext()) {
            ProductXML p = iter.next();
            LOGGER.log(Level.WARNING, "Product name: {0} - Price: {1}", new Object[] { p.getName(), p.getPrice() });
            pm.deletePersistent(p);
        }
        LOGGER.log(Level.INFO, "--------------------------------------------------------------");
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        pm.close();
    }
}

Example 24 with JDOPersistenceManagerFactory

use of org.datanucleus.api.jdo.JDOPersistenceManagerFactory in project tutorials by eugenp.

the class GuideToJDO method persistXML.

public void persistXML() {
    PersistenceManagerFactory pmf = new JDOPersistenceManagerFactory(pumdXML, null);
    PersistenceManager pm = pmf.getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
        tx.begin();
        ProductXML productXML = new ProductXML(0, "Tablet", 80.0);
        pm.makePersistent(productXML);
        ProductXML productXML2 = new ProductXML(1, "Phone", 20.0);
        pm.makePersistent(productXML2);
        ProductXML productXML3 = new ProductXML(2, "Laptop", 200.0);
        pm.makePersistent(productXML3);
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        pm.close();
    }
}

Example 25 with JDOPersistenceManagerFactory

use of org.datanucleus.api.jdo.JDOPersistenceManagerFactory in project tutorials by eugenp.

the class GuideToJDO method QuerySQL.

@SuppressWarnings({ "rawtypes", "unchecked" })
public void QuerySQL() {
    PersistenceManagerFactory pmf = new JDOPersistenceManagerFactory(pumd, null);
    PersistenceManager pm = pmf.getPersistenceManager();
    Transaction tx = pm.currentTransaction();
    try {
        tx.begin();
        // SQL :
        LOGGER.log(Level.INFO, "SQL --------------------------------------------------------------");
        Query query = pm.newQuery("javax.jdo.query.SQL", "SELECT * FROM PRODUCT");
        query.setClass(Product.class);
        List<Product> results = query.executeList();
        Iterator<Product> iter = results.iterator();
        while (iter.hasNext()) {
            Product p = iter.next();
            LOGGER.log(Level.WARNING, "Product name: {0} - Price: {1}", new Object[] { p.name, p.price });
        }
        LOGGER.log(Level.INFO, "--------------------------------------------------------------");
        tx.commit();
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        pm.close();
    }
}