Examples with IPersistent org.jaffa.persistence.IPersistent used on opensource projects

Example 21 with IPersistent

use of org.jaffa.persistence.IPersistent in project jaffa-framework by jaffa-projects.

the class DataSourceCursor method fetchData.

/**
 * This will fetch additional data. Each row will be molded into a Persistent object
 * and added to the collection. It will invoke the PostLoad trigger of each Persistent object.
 * If all the data has been fetched, then the ResultSet will be closed.
 */
private void fetchData() throws SQLException, PostLoadFailedException, DataSourceCursorRuntimeException, IOException {
    if (!m_allRead) {
        for (int i = 0; i < m_dataSource.getHitlistSize().intValue(); i++) {
            if (m_pagingPlugin != null ? m_pagingPlugin.next(m_resultSet) : m_resultSet.next()) {
                try {
                    if (m_criteria.getGroupBys() != null || m_criteria.getFunctionEntries() != null) {
                        Map m = MoldingService.getFunctionQueryMap(m_criteria, m_classMetaData, m_resultSet, m_dataSource.getEngineType());
                        if (log.isDebugEnabled()) {
                            StringBuffer buf = new StringBuffer();
                            for (Iterator itr = m.entrySet().iterator(); itr.hasNext(); ) {
                                if (buf.length() > 0)
                                    buf.append(',');
                                Map.Entry me = (Map.Entry) itr.next();
                                buf.append(me.getKey() + "=" + me.getValue());
                            }
                            log.debug("Results from SQL functions:" + buf.toString());
                        }
                        m_collection.add(m);
                    } else {
                        IPersistent object = MoldingService.getObject(m_classMetaData, m_resultSet, m_dataSource.getEngineType());
                        if (log.isDebugEnabled()) {
                            log.debug("Fetched the Persistent object: " + object.toString());
                            log.debug("Invoking the PostLoad trigger of the Persistent object");
                        }
                        JdbcBridge.updatePersistentFlagsOnQuery(object, m_criteria);
                        object.postLoad();
                        m_collection.add(object);
                        m_dataSource.cacheObject(object);
                    }
                    if (log.isDebugEnabled())
                        log.debug("Current size of the retrieved record set is " + m_collection.size());
                } catch (ClassNotFoundException e) {
                    String str = "Error while molding a ResultSet into a Persistent object";
                    log.error(str, e);
                    throw new DataSourceCursorRuntimeException(str, e);
                } catch (InstantiationException e) {
                    String str = "Error while molding a ResultSet into a Persistent object";
                    log.error(str, e);
                    throw new DataSourceCursorRuntimeException(str, e);
                } catch (IllegalAccessException e) {
                    String str = "Error while molding a ResultSet into a Persistent object";
                    log.error(str, e);
                    throw new DataSourceCursorRuntimeException(str, e);
                } catch (InvocationTargetException e) {
                    String str = "Error while molding a ResultSet into a Persistent object";
                    log.error(str, e);
                    throw new DataSourceCursorRuntimeException(str, e);
                }
            } else {
                if (log.isDebugEnabled())
                    log.debug("Fetched in the complete result set. Invoking the closeStatement() method of the DataSource.");
                m_dataSource.closeStatement(m_statement);
                m_allRead = true;
                break;
            }
        }
    }
}

Example 22 with IPersistent

use of org.jaffa.persistence.IPersistent in project jaffa-framework by jaffa-projects.

the class HitlistTest method testHitlist.

/**
 * This creates 123 Item records. It then retrieves them. After reading each record, the size of the Collection will be checked.
 * The size will increment in steps of hitlist size (which is assumed to be 10). The size will be negative, until all the records have been fetched.
 */
public void testHitlist() {
    try {
        int rows = 123;
        int hitlistSize = 10;
        String itemIdPrefix = "ZZ-HIT-LIST-";
        DateTime createdDateTime = new DateTime();
        // create items
        for (int i = 1; i <= rows; i++) {
            Item item = (Item) m_uow.newPersistentInstance(Item.class);
            item.updateItemId(itemIdPrefix + i);
            item.updateQty(new Long(i));
            item.updateCreatedDatetime(createdDateTime);
            m_uow.add(item);
        }
        m_uow.commit();
        // now retrieve the items
        m_uow = new UOW();
        Criteria c = new Criteria();
        c.setLocking(Criteria.LOCKING_PARANOID);
        c.setTable(ItemMeta.getName());
        c.addCriteria(ItemMeta.ITEM_ID, Criteria.RELATIONAL_BEGINS_WITH, itemIdPrefix);
        c.addOrderBy(ItemMeta.QTY, Criteria.ORDER_BY_ASC);
        Collection items = m_uow.query(c);
        assertEquals(-hitlistSize, items.size());
        int i = 0;
        for (Iterator itr = items.iterator(); itr.hasNext(); ) {
            ++i;
            Item item = (Item) itr.next();
            assertEquals(itemIdPrefix + i, item.getItemId());
            assertEquals(new Long(i), item.getQty());
            assertEquals(createdDateTime.toString(), item.getCreatedDatetime().toString());
            // hitlist checks
            if (i == rows) {
                assertEquals(rows, items.size());
            } else if (i % hitlistSize == 0) {
                assertEquals(-i, items.size());
            } else {
                int expectedSize = i - (i % hitlistSize) + hitlistSize;
                if (expectedSize >= rows)
                    assertEquals(rows, items.size());
                else
                    assertEquals(-expectedSize, items.size());
            }
        }
        // one final check.. to ensure that all the records were retrieved
        assertEquals(rows, items.size());
        // now delete the records
        for (Iterator itr = items.iterator(); itr.hasNext(); ) m_uow.delete((IPersistent) itr.next());
        m_uow.commit();
    } catch (Exception e) {
        e.printStackTrace();
        fail();
    }
}

Example 23 with IPersistent

use of org.jaffa.persistence.IPersistent in project jaffa-framework by jaffa-projects.

the class HitlistTest method testHitlistUsingProxy.

/**
 * This creates 123 Item records. It then retrieves them. After reading each record, the size of the Collection will be checked.
 * The size will increment in steps of hitlist size (which is assumed to be 10). The size will be negative, until all the records have been fetched.
 */
public void testHitlistUsingProxy() {
    try {
        int rows = 123;
        int hitlistSize = 10;
        String itemIdPrefix = "ZZ-HIT-LIST-";
        DateTime createdDateTime = new DateTime();
        // create items
        for (int i = 1; i <= rows; i++) {
            IItem item = (IItem) m_uow.newPersistentInstance(IItem.class);
            item.setItemId(itemIdPrefix + i);
            item.setQty(new Long(i));
            item.setCreatedDatetime(createdDateTime);
            m_uow.add(item);
        }
        m_uow.commit();
        // now retrieve the items
        m_uow = new UOW();
        Criteria c = new Criteria();
        c.setLocking(Criteria.LOCKING_PARANOID);
        c.setTable(IItem.class.getName());
        c.addCriteria(IItem.ITEM_ID, Criteria.RELATIONAL_BEGINS_WITH, itemIdPrefix);
        c.addOrderBy(IItem.QTY, Criteria.ORDER_BY_ASC);
        Collection items = m_uow.query(c);
        assertEquals(-hitlistSize, items.size());
        int i = 0;
        for (Iterator itr = items.iterator(); itr.hasNext(); ) {
            ++i;
            IItem item = (IItem) itr.next();
            assertEquals(itemIdPrefix + i, item.getItemId());
            assertEquals(new Long(i), item.getQty());
            assertEquals(createdDateTime.toString(), item.getCreatedDatetime().toString());
            // hitlist checks
            if (i == rows) {
                assertEquals(rows, items.size());
            } else if (i % hitlistSize == 0) {
                assertEquals(-i, items.size());
            } else {
                int expectedSize = i - (i % hitlistSize) + hitlistSize;
                if (expectedSize >= rows)
                    assertEquals(rows, items.size());
                else
                    assertEquals(-expectedSize, items.size());
            }
        }
        // one final check.. to ensure that all the records were retrieved
        assertEquals(rows, items.size());
        // now delete the records
        for (Iterator itr = items.iterator(); itr.hasNext(); ) m_uow.delete((IPersistent) itr.next());
        m_uow.commit();
    } catch (Exception e) {
        e.printStackTrace();
        fail();
    }
}

Example 24 with IPersistent

use of org.jaffa.persistence.IPersistent in project jaffa-framework by jaffa-projects.

the class DomainXmlWriter method write.

/**
 * Generate XML based on the added objects.
 * @param w The writer to which the XML will be written to.
 * @param escapeDomainXml if true, the domain XML will be escaped before being inserted into the main
 * @throws IOException if any IO error occurs.
 */
public void write(Writer w, boolean escapeDomainXml) throws IOException {
    w.write("<?xml version='1.0'?>\n");
    w.write("<rows>\n");
    for (IPersistent obj : m_objects) {
        w.write("  <row>\n");
        w.write("    <bean-class>");
        w.write(obj.getClass().getName());
        w.write("</bean-class>\n");
        w.write("    <bean-data>\n");
        try {
            StringWriter tempWriter = new StringWriter();
            JAXBContext jc = JAXBContext.newInstance(new Class[] { obj.getClass() });
            Marshaller marshaller = jc.createMarshaller();
            marshaller.setProperty("jaxb.fragment", Boolean.TRUE);
            marshaller.marshal(obj, tempWriter);
            w.write(escapeDomainXml ? StringHelper.convertToHTML(tempWriter.toString()) : tempWriter.toString());
        } catch (Exception e) {
            throw new RuntimeException("Error in marshalling domain object to XML", e);
        }
        w.write("\n    </bean-data>\n");
        w.write("  </row>\n");
    }
    w.write("</rows>\n");
}

Example 25 with IPersistent

use of org.jaffa.persistence.IPersistent in project jaffa-framework by jaffa-projects.

the class PrimaryKeyValidator method validateProperty.

@Override
protected void validateProperty(T targetObject, String targetPropertyName, Object targetPropertyValue, List<RuleMetaData> rules, UOW uow) throws ApplicationException, FrameworkException {
    // No need to perform validations for an IPersistent instance that exists in the database
    if (targetObject instanceof IPersistent && ((IPersistent) targetObject).isDatabaseOccurence()) {
        if (log.isDebugEnabled()) {
            log.debug(getName() + " check not performed since the target object already exists in the database");
        }
        return;
    }
    RuleMetaData rule = rules.get(0);
    if (log.isDebugEnabled()) {
        log.debug("Applying " + rule + " on " + targetObject);
    }
    Criteria criteria = null;
    String pk = rule.getParameter(RuleMetaData.PARAMETER_VALUE);
    String[] pkFields = pk.split(",");
    for (String pkField : pkFields) {
        Object pkValue = null;
        try {
            pkValue = BeanHelper.getField(targetObject, pkField);
        } catch (NoSuchMethodException e) {
            if (log.isDebugEnabled()) {
                log.debug("No Such Method Exception: " + targetObject.getClass().getName() + "." + pkField, e);
            }
            return;
        }
        if (pkValue == null) {
            if (log.isDebugEnabled()) {
                log.debug(getName() + " check not performed since the key field " + pkField + " is null");
            }
            return;
        } else {
            // Add to criteria
            if (criteria == null) {
                criteria = new Criteria();
            }
            criteria.addCriteria(pkField, pkValue);
        }
    }
    if (criteria != null) {
        criteria.setTable(getActualClassName(targetObject.getClass()));
        if (uow.query(criteria).iterator().hasNext()) {
            if (log.isDebugEnabled()) {
                log.debug("Primary key '" + pk + "' is not unique for the object " + targetObject);
            }
            String objectLabel = getObjectLabel(getActualClassName(targetObject.getClass()), targetObject);
            throw wrapException(new DuplicateKeyException(objectLabel), targetObject, rule);
        }
    }
}