Examples of DataContext

com.google.clearsilver.jsilver.data.DataContext
Manages the global Data object and local variable mappings during rendering.
com.intellij.openapi.actionSystem.DataContext
Allows an action to retrieve information about the context in which it was invoked. @see com.intellij.openapi.actionSystem.AnActionEvent#getDataContext() @see DataConstants @see DataProvider
me.daddychurchill.CityWorld.Context.DataContext
net.hydromatic.optiq.DataContext
Runtime context allowing access to the tables in a database.
net.sourceforge.processdash.data.DataContext
org.apache.cayenne.access.DataContext
Class that provides applications with access to Cayenne persistence features. In most cases this is the only access class directly used in the application.
Most common DataContext use pattern is to create one DataContext per session. "Session" may be a an HttpSession in a web application, or any other similar concept in a multiuser application.

DataObjects are registered with DataContext either implicitly when they are fetched via a query, or read via a relationship from another object, or explicitly via calling {@link #createAndRegisterNewObject(Class)}during new DataObject creation. DataContext tracks changes made to its DataObjects in memory, and flushes them to the database when {@link #commitChanges()}is called. Until DataContext is committed, changes made to its objects are not visible in other DataContexts.

Each DataObject can belong only to a single DataContext. To create a replica of an object from a different DataContext in a local context, use {@link #localObject(ObjectId,Persistent)} method.
For more information see Cayenne User Guide.

Note that all QueryEngine interface methods are deprecated in the DataContext. Since 1.2 release DataContext implements ObjectContext and DataChannel interfaces.
@author Andrus Adamchik
org.apache.metamodel.DataContext
A DataContext represents the central entry point for interactions with datastores. The DataContext contains of the structure of data (in the form of schemas) and interactions (in the form of queries) with data. @author Kasper Sørensen
org.apache.stratos.cartridge.agent.data.publisher.DataContext
org.eobjects.metamodel.DataContext

Examples of org.eobjects.metamodel.DataContext

    OutputWriter writer = CsvOutputWriterFactory.getWriter(filename, scenarioHelper.getColumns());


    scenarioHelper.writeExampleData(writer);
    writer.close();
    
    DataContext dc = DataContextFactory.createCsvDataContext(new File(filename));
    Table table = dc.getDefaultSchema().getTables()[0];
    Query q = dc.query().from(table).select(table.getColumns()).toQuery();
    DataSet dataSet = dc.executeQuery(q);
    
    scenarioHelper.performAssertions(dataSet, false);
  }

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Examples of org.eobjects.metamodel.DataContext

    }
    assertEquals(9, datastoreCount.get());


    assertNotNull(_datastore);
    DataContextProvider dataContextProvider = _datastore.getDataContextProvider();
    DataContext dc = dataContextProvider.getDataContext();
    dc.refreshSchemas();
    String[] tableNames = dc.getDefaultSchema().getTableNames();
    Arrays.sort(tableNames);


    assertEquals("[TAB_1, TAB_2, TAB_3, TAB_4, TAB_5, TAB_6, TAB_7, TAB_8, TAB_9]", Arrays.toString(tableNames));
  }

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Examples of org.eobjects.metamodel.DataContext

      public void createDatastore(Datastore datastore) {
        _datastoreCreated = true;
        assertEquals("my datastore", datastore.getName());


        DataContextProvider dcp = datastore.getDataContextProvider();
        DataContext dc = dcp.getDataContext();


        Table table = dc.getDefaultSchema().getTables()[0];
        Query q = dc.query().from(table).select(table.getColumns()).toQuery();
        DataSet dataSet = dc.executeQuery(q);


        scenarioHelper.performAssertions(dataSet, true);


        dcp.close();
      }

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Examples of org.eobjects.metamodel.DataContext

    final URL url = resourceManager.getUrl("licenses/dependency-licenses.csv");
    if (url == null) {
      throw new IllegalStateException("Could not find dependencies file");
    }
    try {
      DataContext dc = DataContextFactory.createCsvDataContext(url.openStream(), ',', '"', false);
      Table table = dc.getDefaultSchema().getTables()[0];
      Column projectColumn = table.getColumnByName("Project");
      Column websiteColumn = table.getColumnByName("Website");
      Column licenseColumn = table.getColumnByName("License");
      Query q = dc.query().from(table).select(table.getColumns()).orderBy(projectColumn).asc().toQuery();
      DataSet ds = dc.executeQuery(q);
      while (ds.next()) {
        final LicensedProject licensedProject = new LicensedProject();
        final Row row = ds.getRow();
        final String licenseName = row.getValue(licenseColumn).toString();

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Examples of org.eobjects.metamodel.DataContext

      logger.info("Not displaying preview table because isPreviewDataAvailable() returned false");
      return null;
    }
    D datastore = getPreviewDatastore(filename);
    DataContextProvider dcp = datastore.getDataContextProvider();
    DataContext dc = dcp.getDataContext();
    Table table = getPreviewTable(dc);
    Column[] columns = table.getColumns();
    if (columns.length > getPreviewColumns()) {
      // include max 10 columns
      columns = Arrays.copyOf(columns, getPreviewColumns());
    }
    Query q = dc.query().from(table).select(columns).toQuery();
    q.setMaxRows(7);


    DataSet dataSet = dc.executeQuery(q);


    dcp.close();


    return dataSet;
  }

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