Examples of 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.

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

    public void actionSaveChanges(CommandRequest request) throws Exception {
        //save datasourceEntry changes
        setSelectedTables(request.getRequestObject().getParameter("selectedTables"));
        actionCreateDatasource(request);
        //complete selected tables columns, delete previous introspect and save new introspect
        HibernateTxFragment txFragment = new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                String[] arrTableName=getSelectedTables().split(",");
                String deleteHql = "delete from "+DataSourceTableEntry.class.getName() + " where datasource = '"+getName()+"'";
                Query deleteQuery = session.createQuery(deleteHql);
                deleteQuery.executeUpdate();
                for(int i=0;i<arrTableName.length;i++){
                    DataSourceTableEntry tableEntry = new DataSourceTableEntry();
                    tableEntry.setDatasource(getName());
                    tableEntry.setName(arrTableName[i]);
                    tableEntry.setSelected("true");
                    session.saveOrUpdate(tableEntry);
                }


                deleteHql = "delete from " + DataSourceColumnEntry.class.getName() + " where datasource = '"+getName()+"'";
                deleteQuery = session.createQuery(deleteHql);
                deleteQuery.executeUpdate();
                for(int i=0;i<arrTableName.length;i++){
                    List tableColumns = getTableColumns(arrTableName[i]);
                    Iterator it = tableColumns.iterator();
                    while(it.hasNext()){
                        DataSourceColumnEntry columnEntry = (DataSourceColumnEntry) it.next();
                        session.saveOrUpdate(columnEntry);
                    }
                }
            }
        };
        txFragment.execute();
        clearParametersHandler();
        setCreating(false);
    }

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

        return new KPIImpl();
    }


    public Set getAllKPIs() throws Exception {
        final Set results = new HashSet();
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            FlushMode flushMode = session.getFlushMode();
            session.setFlushMode(FlushMode.COMMIT);
            Query query = session.createQuery("from " + KPIImpl.class.getName() + " order by id");
            query.setCacheable(true);

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

        return results;
    }


    public KPI getKPIById(final Long id) 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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Examples of org.jboss.dashboard.database.hibernate.HibernateTxFragment

        return null;
    }


    public KPI getKPIByCode(final String code) 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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Examples of org.jboss.dashboard.database.hibernate.HibernateTxFragment

    public void save() throws Exception {
        if (!getDataProvider().isReady()) {
            log.warn("Cannot save KPI because its data provider is not well configured.");
            return;
        }
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            boolean isTransient = !isPersistent();
            serializeDataDisplayer();
            if (isTransient) persist(0);
            else persist(1);

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

            persist(2);
        }
    }


    protected void persist(final int op) throws Exception {
        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            KPIManager kpiManager = DataDisplayerServices.lookup().getKPIManager();
            switch(op) {
                case 0:
                    kpiManager.notifyKPIListener(KPIManager.EVENT_KPI_CREATED, KPIImpl.this);

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

    }


    protected void beforePanelInstanceRemove(final PanelInstance instance) throws Exception {
        super.beforePanelInstanceRemove(instance);


        new HibernateTxFragment() {
        protected void txFragment(Session session) throws Exception {
            HTMLText htmlText = load(instance);
            if (htmlText != null) htmlText.delete();
        }}.execute();
    }

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

    }


    public HTMLText load(final PanelInstance instance) {
        final List results = new ArrayList();
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                FlushMode oldFlushMode = session.getFlushMode();
                session.setFlushMode(FlushMode.NEVER);
                Query query = session.createQuery(" from " + HTMLText.class.getName() + " as text where text.panelInstance = :instance");
                query.setParameter("instance", instance);

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

            return;
        }


        final HTMLText[] textArray = new HTMLText[1];
        try {
            new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                log.debug("Getting text to duplicate for instance " + src.getDbid());
                FlushMode oldMode = session.getFlushMode();
                session.setFlushMode(FlushMode.COMMIT);//Avoids flushing, as we know the text was not modified in this transaction.
                textArray[0] = load(src);

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

        return existsWorkspace(id, false);
    }


    public boolean existsWorkspace(final String id, final boolean lock) throws Exception {
        final boolean[] exists = new boolean[]{false};
        HibernateTxFragment txFragment = new HibernateTxFragment() {
            protected void txFragment(Session session) throws Exception {
                Object workspaceFound = session.get(WorkspaceImpl.class, id, lock ? LockMode.UPGRADE : LockMode.NONE);
                exists[0] = workspaceFound != null;
            }
        };
        txFragment.execute();
        return exists[0];
    }

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