Examples of org.jboss.dashboard.database.hibernate.HibernateTxFragment

Package org.jboss.dashboard.database.hibernate

Examples of org.jboss.dashboard.database.hibernate.HibernateTxFragment

org.jboss.dashboard.database.hibernate.HibernateTxFragment
ne the transaction fragment final String finalVar = ""; new HibernateTxFragment() { new HibernateTxFragment(false, true) { // Activate callback methods afterXXX/beforeXXX. new HibernateTxFragment(true, false) { // Open a brand new transaction. protected void txFragment(Session session) throws Exception { // Transactional block // ... finalVar = ""; // Forbidden sentence }}.execute();
IMPORTANT NOTE: All variables accessed inside the transaction fragment block must be defined as final because a inner class can't change the reference to a variable defined into its scope.
Another issue to be considered is what happens when a fragment needs to return a value from txFragment method. Use an array or collection to store the return value(s):
```
 final Object[] result = new Object[] {null}; new HibernateTxFragment() { protected void txFragment(Session session) throws Exception { // ... result[0] = ...; }}.execute(); return result[0]; 
```
The variable result can be an array or a collection or any other structure where we can store the results to be returned by the fragment block.

    /**
     * Persist panel status to database
     */
    public synchronized void store(final Panel panel) throws Exception {


        HibernateTxFragment txFragment = new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                session.saveOrUpdate(panel);
                session.flush();
            }
        };


        synchronized (panel) {
            txFragment.execute();
        }
    }

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    /**
     * Persist panel status to database
     */
    public synchronized void store(final PanelInstance instance) throws Exception {
        HibernateTxFragment txFragment = new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                session.saveOrUpdate(instance);
            }
        };
        synchronized (instance) {
            txFragment.execute();
        }
    }

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        }
    }


    public Panel getPaneltByDbId(final Long panelId) throws Exception {
        final List results = new ArrayList();
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            FlushMode flushMode = session.getFlushMode();
            session.setFlushMode(FlushMode.COMMIT);


            StringBuffer sql = new StringBuffer();

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        return null;
    }


    public Panel getPaneltById(final Long panelId) throws Exception {
        final List results = new ArrayList();
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            FlushMode flushMode = session.getFlushMode();
            session.setFlushMode(FlushMode.COMMIT);


            StringBuffer sql = new StringBuffer();

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        return null;
    }


    public Set<PanelInstance> getPanelsByParameter(final String paramId, final String value) throws Exception {
        final Set<PanelInstance> results = new HashSet<PanelInstance>();
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            FlushMode flushMode = session.getFlushMode();
            session.setFlushMode(FlushMode.COMMIT);


            StringBuffer sql = new StringBuffer();

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        return null;
    }


    protected void initConnection() {
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                log.debug("Obtain data source connection: " + name);
                // Bug Fix: under some circumstances, the dataSourceEntry attribute became out of sync with the Hibernate session.
                dataSourceEntry = (DataSourceEntry) session.get(dataSourceEntry.getClass(), dataSourceEntry.getDbid());
                Connection conn = dataSourceEntry.getConnection();

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     * Get all registered datasource entries
     */
    public List<DataSourceEntry> getDataSourceEntries() {
        final List result = new ArrayList();
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                Query query = session.createQuery(" from " + DataSourceEntry.class.getName());
                FlushMode oldFlushMode = session.getFlushMode();
                session.setFlushMode(FlushMode.COMMIT);
                query.setCacheable(true);

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    public DataSourceEntry getDataSourceEntryByName(final String name) throws Exception {
        if (name == null) return null;


        final List results = new ArrayList();
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            FlushMode flushMode = session.getFlushMode();
            session.setFlushMode(FlushMode.COMMIT);


            StringBuffer sql = new StringBuffer();

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        if (ds != null) return ds;


        // Search the data source with the given name into the database.
        final DataSourceEntry[] entryResult = new DataSourceEntry[] {null};
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                Query query = session.createQuery(" from " + DataSourceEntry.class.getName() + " entry where entry.name = :entryName ");
                FlushMode oldFlushMode = session.getFlushMode();
                session.setFlushMode(FlushMode.COMMIT);
                query.setString("entryName", name);

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        }
    }


    protected void processTheRequest(final HttpServletRequest request, final HttpServletResponse response) {
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                // Process the request.
                if (log.isDebugEnabled()) log.debug("Processing request\n" + Profiler.printCurrentContext());
                RequestChainProcessor requestProcessor = (RequestChainProcessor) Factory.lookup("org.jboss.dashboard.ui.controller.requestChain.StartingProcessor");
                requestProcessor.doRequestProcessing();

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org.jboss.dashboard.commons.events.Publisher

org.jboss.dashboard.database.DatabaseAutoSynchronizer

org.jboss.dashboard.database.DataSourceEntry

org.jboss.dashboard.database.DataSourceFragment

org.jboss.dashboard.database.DataSourceManager

org.jboss.dashboard.database.ExternalDataSource

org.jboss.dashboard.database.LocalDataSource

org.jboss.dashboard.factory.InitialModule

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