Example usage for org.hibernate LockOptions LockOptions

Introduction

In this page you can find the example usage for org.hibernate LockOptions LockOptions.

Prototype

public LockOptions(LockMode lockMode) 

Source Link

Document

Constructs a LockOptions with the given lock mode.

Usage

From source file:com.liferay.portal.dao.orm.hibernate.QueryImpl.java

License:Open Source License

public Query setLockMode(String alias, LockMode lockMode) {
    org.hibernate.LockMode hibernateLockMode = LockModeTranslator.translate(lockMode);

    LockOptions lockOptions = new LockOptions(hibernateLockMode);

    lockOptions.setAliasSpecificLockMode(alias, hibernateLockMode);

    _query.setLockOptions(lockOptions);/*from   w ww. ja  v a  2 s.  co  m*/

    return this;
}

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From source file:com.lighting.platform.base.dao.SimpleHibernateDao.java

License:Apache License

/**
 * ??,  select ... for update/* w  w w. j ava 2  s  .  c om*/
 * ?, ???. 
 */
public void pessimisticLock(T entity) {
    LockOptions option = new LockOptions(LockMode.PESSIMISTIC_WRITE);
    getSession().buildLockRequest(option).lock(entity);
}

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From source file:de.innovationgate.webgate.api.jdbc.WGDatabaseImpl.java

License:Open Source License

private Long upgradeFileStorage(Logger log) throws WGAPIException {

    _ugradeFileStorageRunning = true;//from  w  w  w .ja va2  s .  c  om
    try {

        if (_csVersion.getVersion() < 5.0 || _csVersion.getPatchLevel() < 4) {
            log.error("This task needs a content store of version 5.0 patch level 4 or higher");
            return 0L;
        }

        CS5P4FileHandling fileHandling = ((CS5P4FileHandling) _fileHandling);
        long freedMemory = 0;

        while (true) {
            String metaHql = "from ContentFileMeta as meta where meta.checksumSha512 is null";
            Iterator oldMetas = getSession().createQuery(metaHql).iterate();
            try {
                int counter = 0;
                if (!oldMetas.hasNext()) {
                    break;
                }

                while (oldMetas.hasNext() && counter < 100) {
                    ContentFileMeta meta = (ContentFileMeta) oldMetas.next();
                    getSession().setReadOnly(meta, false);
                    LockRequest lockRequest = getSession()
                            .buildLockRequest(new LockOptions(LockMode.PESSIMISTIC_WRITE));
                    lockRequest.lock(meta);

                    try {

                        // Just-for-sure check if this is really not yet migrated
                        getSession().refresh(meta);
                        if (meta.getChecksumSha512() != null) {
                            rollbackHibernateTransaction(false);
                            continue;
                        }

                        log.info("Database: " + getDb().getDbReference() + ": Upgrading storage of file '"
                                + meta.getName() + "' from document '" + meta.getParentcontent().getTitle()
                                + "' (" + meta.getParentcontent().getStructentry().getKey() + "."
                                + meta.getParentcontent().getLanguage().getName() + "."
                                + meta.getParentcontent().getVersion() + ")");

                        // Select file parts
                        String hqlQuery = "select cfp from ContentFilePart as cfp where cfp.meta=:metaEntity order by cfp.partnr asc";
                        Query query = getSession().createQuery(hqlQuery);
                        query.setParameter("metaEntity", meta);

                        // Migrate file parts to filecontents parts
                        InputStream in = new HibernateQueryInputStream(fileHandling.getParent().getSession(),
                                query, 0, isOptimizedFileHandlingDisableQueryPaging());
                        try {
                            fileHandling.storeFileContents(meta, new CS5P4ContentFileDescriptor(), in);
                        } finally {
                            in.close();
                        }

                        // Delete file parts
                        Query deletionQuery = getSession()
                                .createQuery("delete ContentFilePart cfp where cfp.meta = :meta");
                        deletionQuery.setEntity("meta", meta);
                        deletionQuery.executeUpdate();

                        // Commit so we can read the file afterwards
                        commitHibernateTransaction();

                        /*
                        // Annotate the file
                        WGDocumentImpl doc = createDocumentImpl(meta.getParentcontent());
                        TemporaryFile tempFile = new TemporaryFile(meta.getName(), doc.getFileData(meta.getName()), WGFactory.getTempDir());
                        try {
                        WGFileMetaData md = new WGFileMetaData(new WGDocument.FakeMetaDataContext(), meta.getName(), meta.getSize(), meta.getCreated(), meta.getLastmodified(), meta.getChecksum(), meta.getChecksumSha512(), fileHandling.loadMdExtensionData(doc, meta));
                        _db.annotateMetadata(tempFile.getFile(), md, null);
                        fileHandling.storeMdExtensionData(doc, md, meta);
                        if (isSaveIsolationActive()) {
                            getSession().update(meta); // This will not be able to store binary extension data, which however cannot be present before upgrading the file storage
                        }
                        }
                        finally {
                        tempFile.delete();
                        }
                        commitHibernateTransaction();
                        */
                    } catch (Throwable e) {
                        log.error("Exception upgrading file", e);
                        rollbackHibernateTransaction(false);
                    }
                    counter++;
                }

                log.info("Clearing session cache");
                refresh();
                log.info("Running file storage maintenance to remove duplicate file data");
                freedMemory += dailyMaintenance(log);
            } finally {
                Hibernate.close(oldMetas);
            }
        }

        log.info("Database: " + getDb().getDbReference() + ": Upgrading file storage freed "
                + WGUtils.DECIMALFORMAT_STANDARD.format(freedMemory / 1024 / 1024)
                + " MB of file storage memory.");
        return freedMemory;

    } finally {
        _ugradeFileStorageRunning = false;
    }

}

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From source file:net.e6tech.elements.persist.hibernate.ModifiedTableGenerator.java

License:Apache License

@SuppressWarnings("unchecked")
protected String buildSelectQuery(Dialect dialect) {
    final String alias = "tbl";
    final String query = "select " + StringHelper.qualify(alias, valueColumnName) + " from " + renderedTableName
            + ' ' + alias + " where " + StringHelper.qualify(alias, segmentColumnName) + "=?";
    final LockOptions lockOptions = new LockOptions(LockMode.PESSIMISTIC_WRITE);
    lockOptions.setAliasSpecificLockMode(alias, LockMode.PESSIMISTIC_WRITE);
    final Map updateTargetColumnsMap = Collections.singletonMap(alias, new String[] { valueColumnName });
    return dialect.applyLocksToSql(query, lockOptions, updateTargetColumnsMap);
}

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From source file:org.brekka.commons.persistence.dao.hibernate.AbstractIdentifiableEntityHibernateDAO.java

License:Apache License

@SuppressWarnings("unchecked")
@Override//  www . j  a  v  a  2s  .  c o m
public Entity retrieveById(final ID entityId, final LockModeType lockModeType, final int timeout,
        final TimeUnit timeUnit) {
    Session session = getCurrentSession();
    LockMode lockMode = getLockMode(lockModeType);
    LockOptions lockOptions = new LockOptions(lockMode);
    if (timeout > -1) {
        lockOptions.setTimeOut((int) timeUnit.toMillis(timeout));
    }
    Entity entity = (Entity) session.get(type(), entityId, lockOptions);
    preRead(entity);
    return entity;
}

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From source file:org.brekka.commons.persistence.dao.hibernate.AbstractIdentifiableEntityHibernateDAO.java

License:Apache License

protected Entity queryById(final ID entityId, final String idFieldName, final String hql,
        final LockModeType lockModeType, final int timeout, final TimeUnit timeUnit) {
    LockMode lockMode = getLockMode(lockModeType);
    LockOptions lockOptions = new LockOptions(lockMode);
    if (timeout > -1) {
        lockOptions.setTimeOut((int) timeUnit.toMillis(timeout));
    }/* w ww  .  j  av a2  s.co  m*/
    Entity entity = type().cast(
            getCurrentSession().createQuery(hql).setLockOptions(lockOptions).setParameter(idFieldName, entityId)
                    .setResultTransformer(FirstResultTransformer.INSTANCE).uniqueResult());
    preRead(entity);
    return entity;
}

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From source file:org.grails.orm.hibernate.GrailsHibernateTemplate.java

License:Apache License

public <T> T lock(final Class<T> entityClass, final Serializable id, final LockMode lockMode)
        throws DataAccessException {
    return doExecute(new HibernateCallback<T>() {
        @SuppressWarnings("unchecked")
        public T doInHibernate(Session session) throws HibernateException {
            return (T) session.get(entityClass, id, new LockOptions(lockMode));
        }//from w ww .j a v a2s.co m
    }, true);
}

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From source file:org.grails.orm.hibernate.GrailsHibernateTemplate.java

License:Apache License

public void lock(final Object entity, final LockMode lockMode) throws DataAccessException {
    doExecute(new HibernateCallback<Object>() {
        public Object doInHibernate(Session session) throws HibernateException {
            session.buildLockRequest(new LockOptions(lockMode)).lock(entity);//LockMode.PESSIMISTIC_WRITE
            return null;
        }//from  w w  w.  j  a va2 s  .  c  o m
    }, true);
}

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From source file:org.grails.orm.hibernate.GrailsHibernateTemplate.java

License:Apache License

public void refresh(final Object entity, final LockMode lockMode) throws DataAccessException {
    doExecute(new HibernateCallback<Object>() {
        public Object doInHibernate(Session session) throws HibernateException {
            if (lockMode == null) {
                session.refresh(entity);
            } else {
                session.refresh(entity, new LockOptions(lockMode));
            }//w w  w  .j  a  va 2 s  .  co m
            return null;
        }
    }, true);
}

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From source file:org.intelligentsia.utility.generator.TableGenerator.java

License:Apache License

public void configure(final DataSource dataSource, final Dialect dialect, final String tableName,
        final String keyValue, final long initialValue) {
    this.tableName = tableName;
    this.dataSource = dataSource;
    insert = new StringBuilder("INSERT into ").append(tableName).append(" values ('").append(keyValue)
            .append("', ").append(initialValue).append(")").toString();
    query = new StringBuilder("select NEXT_VAL from ")
            .append(dialect.appendLockHint(new LockOptions(LockMode.PESSIMISTIC_WRITE), tableName))
            .append(" where VAL_ID='").append(keyValue).append("' ").append(dialect.getForUpdateString())
            .toString();//  www. ja  v a  2 s.  co  m
    update = new StringBuilder("update ").append(tableName).append(" set NEXT_VAL=? WHERE VAL_ID='")
            .append(keyValue).append("' AND NEXT_VAL=?").toString();
}

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