Example usage for org.hibernate LockMode NONE

List of usage examples for org.hibernate LockMode NONE

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In this page you can find the example usage for org.hibernate LockMode NONE.

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LockMode NONE

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Usage

From source file:com.eucalyptus.entities.EntityWrapper.java

License:Open Source License

@SuppressWarnings({ "unchecked", "cast" })
public <T> List<T> query(final T example, final boolean readOnly) {
    final Example qbe = Example.create(example).enableLike(MatchMode.EXACT);
    final List<T> resultList = this.getSession().createCriteria(example.getClass()).setLockMode(LockMode.NONE)
            .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY).setCacheable(true).add(qbe)
            .setReadOnly(readOnly).list();
    return Lists.newArrayList(Sets.newHashSet(resultList));
}

From source file:com.eucalyptus.entities.EntityWrapper.java

License:Open Source License

/**
 * Returns a list of results from the database that exactly match <code>example</code>. This method does not use <i><code>enableLike</code></i> match while the 
 * {@link #query(Object)} does. <i><code>enableLike</code></i> criteria trips hibernate when special characters are involved. So it has been replaced by "=" (equals to)
 * /*ww w.j a  v a 2  s  .  c o  m*/
 * @param example
 * @return
 */
@SuppressWarnings({ "unchecked", "cast" })
public <T> List<T> queryEscape(final T example) {
    final Example qbe = Example.create(example);
    final List<T> resultList = this.getSession().createCriteria(example.getClass()).setLockMode(LockMode.NONE)
            .setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY).setCacheable(true).add(qbe).list();
    return Lists.newArrayList(Sets.newHashSet(resultList));
}

From source file:com.eucalyptus.entities.EntityWrapper.java

License:Open Source License

@SuppressWarnings("unchecked")
public <T> T getUnique(final T example) throws EucalyptusCloudException {
    try {//ww w.ja v  a 2s .c o m
        Object id = null;
        try {
            id = this.getEntityManager().getEntityManagerFactory().getPersistenceUnitUtil()
                    .getIdentifier(example);
        } catch (final Exception ex) {
        }
        if (id != null) {
            final T res = (T) this.getEntityManager().find(example.getClass(), id);
            if (res == null) {
                throw new NoSuchElementException("@Id: " + id);
            } else {
                return res;
            }
        } else if ((example instanceof HasNaturalId) && (((HasNaturalId) example).getNaturalId() != null)) {
            final String natId = ((HasNaturalId) example).getNaturalId();
            final T ret = (T) this.createCriteria(example.getClass()).setLockMode(LockMode.NONE)
                    .setCacheable(true).setMaxResults(1).setFetchSize(1).setFirstResult(0)
                    .add(Restrictions.naturalId().set("naturalId", natId)).uniqueResult();
            if (ret == null) {
                throw new NoSuchElementException("@NaturalId: " + natId);
            }
            return ret;
        } else {
            final T ret = (T) this.createCriteria(example.getClass()).setLockMode(LockMode.NONE)
                    .setCacheable(true).setMaxResults(1).setFetchSize(1).setFirstResult(0)
                    .add(Example.create(example).enableLike(MatchMode.EXACT)).uniqueResult();
            if (ret == null) {
                throw new NoSuchElementException("example: " + LogUtil.dumpObject(example));
            }
            return ret;
        }
    } catch (final NonUniqueResultException ex) {
        throw new EucalyptusCloudException(
                "Get unique failed for " + example.getClass().getSimpleName() + " because " + ex.getMessage(),
                ex);
    } catch (final NoSuchElementException ex) {
        throw new EucalyptusCloudException(
                "Get unique failed for " + example.getClass().getSimpleName() + " using " + ex.getMessage(),
                ex);
    } catch (final Exception ex) {
        final Exception newEx = PersistenceExceptions.throwFiltered(ex);
        throw new EucalyptusCloudException("Get unique failed for " + example.getClass().getSimpleName()
                + " because " + newEx.getMessage(), newEx);
    }
}

From source file:com.eucalyptus.entities.EntityWrapper.java

License:Open Source License

/**
 * Returns the unique result from the database that exactly matches <code>example</code>. The differences between this method and {@link #getUnique(Object)} are:
 * <ol><li>{@link #getUnique(Object)} uses <i><code>enableLike</code></i> match and this method does not. <i><code>enableLike</code></i> criteria trips hibernate when 
 * special characters are involved. So it has been replaced by exact "=" (equals to)</li>  
 * <li>Unique result logic is correctly implemented in this method. If the query returns more than one result, this method correctly throws an exception 
 * wrapping <code>NonUniqueResultException</code>. {@link #getUnique(Object)} does not throw an exception in this case and returns a result as long as it finds
 * one or more matching results (because of the following properties set on the query: <code>setMaxResults(1)</code>, <code>setFetchSize(1)</code> and 
 * <code>setFirstResult(0)</code>)</li></ol>
 * /*from   w ww .j  av  a2s.c om*/
 * @param example
 * @return
 * @throws EucalyptusCloudException
 */
@SuppressWarnings("unchecked")
public <T> T getUniqueEscape(final T example) throws EucalyptusCloudException {
    try {
        Object id = null;
        try {
            id = this.getEntityManager().getEntityManagerFactory().getPersistenceUnitUtil()
                    .getIdentifier(example);
        } catch (final Exception ex) {
        }
        if (id != null) {
            final T res = (T) this.getEntityManager().find(example.getClass(), id);
            if (res == null) {
                throw new NoSuchElementException("@Id: " + id);
            } else {
                return res;
            }
        } else if ((example instanceof HasNaturalId) && (((HasNaturalId) example).getNaturalId() != null)) {
            final String natId = ((HasNaturalId) example).getNaturalId();
            final T ret = (T) this.createCriteria(example.getClass()).setLockMode(LockMode.NONE)
                    .setCacheable(true).add(Restrictions.naturalId().set("naturalId", natId)).uniqueResult();
            if (ret == null) {
                throw new NoSuchElementException("@NaturalId: " + natId);
            }
            return ret;
        } else {
            final T ret = (T) this.createCriteria(example.getClass()).setLockMode(LockMode.NONE)
                    .setCacheable(true).add(Example.create(example)).uniqueResult();
            if (ret == null) {
                throw new NoSuchElementException("example: " + LogUtil.dumpObject(example));
            }
            return ret;
        }
    } catch (final NonUniqueResultException ex) {
        throw new EucalyptusCloudException(
                "Get unique failed for " + example.getClass().getSimpleName() + " because " + ex.getMessage(),
                ex);
    } catch (final NoSuchElementException ex) {
        throw new EucalyptusCloudException(
                "Get unique failed for " + example.getClass().getSimpleName() + " using " + ex.getMessage(),
                ex);
    } catch (final Exception ex) {
        final Exception newEx = PersistenceExceptions.throwFiltered(ex);
        throw new EucalyptusCloudException("Get unique failed for " + example.getClass().getSimpleName()
                + " because " + newEx.getMessage(), newEx);
    }
}

From source file:com.heliosapm.aa4h.parser.XMLQueryParser.java

License:Apache License

/**
 * Initializes a Criteria Query.//from  ww w.j a v a 2  s .  c o m
 * Mandatory Attributes:<ul>
 * <li><b>name</b>: The unqualified class name driving the criteria query.</li>
 * </ul>
 * Optional Attributes:<ul>
 * <li><b>prefix</b>: The package name of the class driving the criteria query. If null, no package is assumed.</li>
 * <li><b>maxSize</b>: The maximum number of rows to return from the database.</li>
 * <li><b>fetchSize</b>: The number of rows to fetch when rows are requested. Usually not useful for AA4H.</li>
 * <li><b>cacheEnabled</b>: Enables or disables caching for the queried objects.</li>
 * <li><b>cacheMode</b>: The cache options for the queried objects.</li>
 * <li><b>flushMode</b>: The session flush options.</li>
 * <li><b>fetchMode</b>: The collection fetch options for the query.</li>
 * <li><b>lockMode</b>: The row lock options for the queried rows.</li>
 * <li><b>timeOut</b>: The query timeout option.</li>
 * <li><b>rowCountOnly</b>: Returns a count of the query rows only.</li>
 * </ul>
 * @param attrs The attributes of the processed node.
 * @return An appended or new CriteriaSpecification
 * @throws SAXException
 */
protected CriteriaSpecification processCriteria(Attributes attrs) throws SAXException {
    if (inDetached) {
        return criteriaStack.peek();
    }
    String name = attrs.getValue("name");
    String prefix = attrs.getValue("prefix");
    if (prefix != null) {
        className = prefix + "." + name;
    } else {
        className = name;
    }
    String maxSize = attrs.getValue("maxSize");
    String fetchSize = attrs.getValue("fetchSize");
    String firstResult = attrs.getValue("firstResult");
    String cacheEnabled = attrs.getValue("cacheEnabled");
    String cacheMode = attrs.getValue("cacheMode");
    String flushMode = attrs.getValue("flushMode");
    String fetchMode = attrs.getValue("fetchMode");
    String lockMode = attrs.getValue("lockMode");
    String timeOut = attrs.getValue("timeOut");
    String rowCountOnly = attrs.getValue("rowCountOnly");
    Criteria newCriteria = null;
    try {
        if (criteriaStack.size() == 0) {
            newCriteria = session.createCriteria(className);
        } else {
            newCriteria = ((Criteria) criteriaStack.peek()).createCriteria(className);
        }
        criteriaStack.push(newCriteria);
        if ("true".equalsIgnoreCase(rowCountOnly)) {
            newCriteria.setProjection(Projections.projectionList().add(Projections.rowCount())

            );
            setRowCountOnly(true);
        }
        if (maxSize != null && isRowCountOnly() == false) {
            newCriteria.setMaxResults(Integer.parseInt(maxSize));
        }
        if (fetchSize != null && isRowCountOnly() == false) {
            newCriteria.setFetchSize(Integer.parseInt(fetchSize));
        }
        if (firstResult != null && isRowCountOnly() == false) {
            newCriteria.setFirstResult(Integer.parseInt(firstResult));
        }
        if (timeOut != null) {
            newCriteria.setTimeout(Integer.parseInt(timeOut));
        }

        if ("true".equalsIgnoreCase(cacheEnabled)) {
            newCriteria.setCacheable(true);
        } else if ("false".equalsIgnoreCase(cacheEnabled)) {
            newCriteria.setCacheable(false);
        }
        if (fetchMode != null && fetchMode.length() > 0) {
            if ("JOIN".equalsIgnoreCase(fetchMode)) {
                newCriteria.setFetchMode(name, FetchMode.JOIN);
            } else if ("SELECT".equalsIgnoreCase(fetchMode)) {
                newCriteria.setFetchMode(name, FetchMode.SELECT);
            } else {
                newCriteria.setFetchMode(name, FetchMode.DEFAULT);
            }
        } else {
            newCriteria.setFetchMode(name, FetchMode.DEFAULT);
        }
        if (cacheMode != null && cacheMode.length() > 0) {
            if ("GET".equalsIgnoreCase(cacheMode)) {
                newCriteria.setCacheMode(CacheMode.GET);
            } else if ("IGNORE".equalsIgnoreCase(cacheMode)) {
                newCriteria.setCacheMode(CacheMode.IGNORE);
            } else if ("NORMAL".equalsIgnoreCase(cacheMode)) {
                newCriteria.setCacheMode(CacheMode.NORMAL);
            } else if ("PUT".equalsIgnoreCase(cacheMode)) {
                newCriteria.setCacheMode(CacheMode.PUT);
            } else if ("REFRESH".equalsIgnoreCase(cacheMode)) {
                newCriteria.setCacheMode(CacheMode.REFRESH);
            } else {
                newCriteria.setCacheMode(CacheMode.NORMAL);
            }
        }
        if (lockMode != null && lockMode.length() > 0) {
            if ("NONE".equalsIgnoreCase(lockMode)) {
                newCriteria.setLockMode(LockMode.NONE);
            } else if ("READ".equalsIgnoreCase(lockMode)) {
                newCriteria.setLockMode(LockMode.READ);
            } else if ("UPGRADE".equalsIgnoreCase(lockMode)) {
                newCriteria.setLockMode(LockMode.UPGRADE);
            } else if ("UPGRADE_NOWAIT".equalsIgnoreCase(lockMode)) {
                newCriteria.setLockMode(LockMode.UPGRADE_NOWAIT);
            } else if ("WRITE".equalsIgnoreCase(lockMode)) {
                newCriteria.setLockMode(LockMode.WRITE);
            } else {
                throw new SAXException("lockMode[" + lockMode + "] Not Recognized");
            }
        }
        if (flushMode != null && flushMode.length() > 0) {
            if ("ALWAYS".equalsIgnoreCase(flushMode)) {
                newCriteria.setFlushMode(FlushMode.ALWAYS);
            } else if ("AUTO".equalsIgnoreCase(flushMode)) {
                newCriteria.setFlushMode(FlushMode.AUTO);
            } else if ("COMMIT".equalsIgnoreCase(flushMode)) {
                newCriteria.setFlushMode(FlushMode.COMMIT);
            } else if ("NEVER".equalsIgnoreCase(flushMode)) {
                // NEVER is deprecated, so we won't throw an exception but we'll ignore it.
            } else {
                throw new SAXException("flushMode[" + flushMode + "] Not Recognized");
            }
        }
        return newCriteria;

    } catch (Exception e) {
        throw new SAXException("Unable to configure class " + className, e);
    }
}

From source file:com.jettmarks.routes.server.bean.BikeTrainDAO.java

License:Apache License

@SuppressWarnings("deprecation")
public void attachClean(BikeTrain instance) {
    logger.debug("attaching clean BikeTrain instance");
    try {/*from   w  ww. j a  v  a 2  s  . c o  m*/
        session.lock(instance, LockMode.NONE);
        logger.debug("attach successful");
    } catch (RuntimeException re) {
        logger.error("attach failed", re);
        throw re;
    }
}

From source file:com.jettmarks.routes.server.bean.BikeTrainElementGroupDAO.java

License:Apache License

public void attachClean(BikeTrainElementGroup instance) {
    logger.debug("attaching clean BikeTrainElementGroup instance");
    try {//  www.  j a va2  s .c om
        session.lock(instance, LockMode.NONE);
        logger.debug("attach successful");
    } catch (RuntimeException re) {
        logger.error("attach failed", re);
        throw re;
    }
}

From source file:com.jettmarks.routes.server.bean.BikeTrainGroupDAO.java

License:Apache License

public void attachClean(BikeTrainGroup instance) {
    logger.debug("attaching clean BikeTrainGroup instance");
    try {/* ww  w.ja  va  2 s .  c  o  m*/
        session.lock(instance, LockMode.NONE);
        logger.debug("attach successful");
    } catch (RuntimeException re) {
        logger.error("attach failed", re);
        throw re;
    }
}

From source file:com.jettmarks.routes.server.bean.CurrentTrainsDAO.java

License:Apache License

public void attachClean(CurrentTrains instance) {
    logger.debug("attaching clean CurrentTrains instance");
    try {/*w w w .j a v  a  2 s . c  o  m*/
        session.lock(instance, LockMode.NONE);
        logger.debug("attach successful");
    } catch (RuntimeException re) {
        logger.error("attach failed", re);
        throw re;
    }
}

From source file:com.jettmarks.routes.server.bean.DisplayElementDAO.java

License:Apache License

public void attachClean(DisplayElement instance) {
    logger.debug("attaching clean DisplayElement instance");
    try {/*from  w  w  w .  j a v  a2  s .c  o  m*/
        session.lock(instance, LockMode.NONE);
        logger.debug("attach successful");
    } catch (RuntimeException re) {
        logger.error("attach failed", re);
        throw re;
    }
}