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.apache.metamodel.DataContext

        assertEquals("[howdy, partner]", Arrays.toString(ds.getRow().getValues()));
        assertFalse(ds.next());
    }


    public void testVaryingValueLengthsCorrect() throws Exception {
        DataContext dc = new FixedWidthDataContext(new File("src/test/resources/example_simple2.txt"),
                new FixedWidthConfiguration(new int[] { 1, 8, 7 }));
        Table table = dc.getDefaultSchema().getTables()[0];
        assertEquals("[i, greeting, greeter]", Arrays.toString(table.getColumnNames()));


        assertEquals(1, table.getColumnByName("i").getColumnSize().intValue());
        assertEquals(8, table.getColumnByName("greeting").getColumnSize().intValue());
        assertEquals(7, table.getColumnByName("greeter").getColumnSize().intValue());


        Query q = dc.query().from(table).select(table.getColumns()).toQuery();
        DataSet ds = dc.executeQuery(q);


        assertTrue(ds.next());
        assertEquals("[1, hello, world]", Arrays.toString(ds.getRow().getValues()));
        assertTrue(ds.next());
        assertEquals("[2, hi, there]", Arrays.toString(ds.getRow().getValues()));

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Examples of org.apache.metamodel.DataContext

        assertEquals("[3, howdy, partner]", Arrays.toString(ds.getRow().getValues()));
        assertFalse(ds.next());
    }


    public void testVaryingValueLengthsTooShortLength() throws Exception {
        DataContext dc = new FixedWidthDataContext(new File("src/test/resources/example_simple2.txt"),
                new FixedWidthConfiguration(0, "UTF8", new int[] { 1, 5, 7 }, true));
        try {
            dc.getDefaultSchema().getTables();
            fail("Exception expected");
        } catch (InconsistentValueWidthException e) {
            assertEquals("Inconsistent row format of row no. 1.", e.getMessage());
            assertEquals("igreetinggreeter", e.getSourceLine());
            assertEquals("[i, greet, inggree]", Arrays.toString(e.getSourceResult()));

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Examples of org.apache.metamodel.DataContext

            assertEquals("[i, greet, inggree]", Arrays.toString(e.getSourceResult()));
        }
    }


    public void testVaryingValueLengthsTooShortLengthErrorTolerant() throws Exception {
        DataContext dc = new FixedWidthDataContext(new File("src/test/resources/example_simple2.txt"),
                new FixedWidthConfiguration(FixedWidthConfiguration.DEFAULT_COLUMN_NAME_LINE, "UTF8", new int[] { 1, 5,
                        7 }, false));


        Table table = dc.getDefaultSchema().getTables()[0];
        assertEquals("[i, greet, inggree]", Arrays.toString(table.getColumnNames()));


        Query q = dc.query().from(table).select(table.getColumns()).toQuery();
        DataSet ds = dc.executeQuery(q);


        assertTrue(ds.next());
        assertEquals("[1, hello, worl]", Arrays.toString(ds.getRow().getValues()));
        assertTrue(ds.next());
        assertEquals("[2, hi, ther]", Arrays.toString(ds.getRow().getValues()));

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Examples of org.apache.metamodel.DataContext

        assertEquals("[3, howdy, part]", Arrays.toString(ds.getRow().getValues()));
        assertFalse(ds.next());
    }


    public void testVaryingValueLengthsTooLongLength() throws Exception {
        DataContext dc = new FixedWidthDataContext(new File("src/test/resources/example_simple2.txt"),
                new FixedWidthConfiguration(0, "UTF8", new int[] { 1, 8, 9 }, true));


        try {
            dc.getDefaultSchema().getTables();
            fail("Exception expected");
        } catch (InconsistentValueWidthException e) {
            assertEquals("Inconsistent row format of row no. 1.", e.getMessage());
            assertEquals("igreetinggreeter", e.getSourceLine());
            assertEquals("[i, greeting, greeter]", Arrays.toString(e.getSourceResult()));

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Examples of org.apache.metamodel.DataContext

            assertEquals("[i, greeting, greeter]", Arrays.toString(e.getSourceResult()));
        }
    }


    public void testVaryingValueLengthsTooLongLengthErrorTolerant() throws Exception {
        DataContext dc = new FixedWidthDataContext(new File("src/test/resources/example_simple2.txt"),
                new FixedWidthConfiguration(FixedWidthConfiguration.DEFAULT_COLUMN_NAME_LINE, "UTF8", new int[] { 1, 8,
                        9 }, false));


        Table table = dc.getDefaultSchema().getTables()[0];
        assertEquals("[i, greeting, greeter]", Arrays.toString(table.getColumnNames()));


        Query q = dc.query().from(table).select(table.getColumns()).toQuery();
        DataSet ds = dc.executeQuery(q);


        assertTrue(ds.next());
        assertEquals("[1, hello, world]", Arrays.toString(ds.getRow().getValues()));
        assertTrue(ds.next());
        assertEquals("[2, hi, there]", Arrays.toString(ds.getRow().getValues()));

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Examples of org.apache.stratos.cartridge.agent.data.publisher.DataContext

        log.info("Starting log publisher for file: " + filePath + ", thread: " + Thread.currentThread().getName());


        scanner = new Scanner(process.getInputStream());
        while (scanner.hasNextLine()) {


            DataContext dataContext = new DataContext();
            // set the relevant data
            dataContext.setCorrelationData(null);
            dataContext.setMetaData(new Object[] {memberId});
            dataContext.setPayloadData(new Object[] {scanner.nextLine()});
            // publish data
            publish(dataContext);
        }
    }

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Examples of org.eobjects.metamodel.DataContext

    }


    final Table table = tables[0];


    final DataContextProvider dataContextProvider = _analysisJobBuilder.getDataContextProvider();
    final DataContext dc = dataContextProvider.getDataContext();
    final Query q = dc.query().from(table).select(physicalColumns.toArray(new Column[physicalColumns.size()])).toQuery();
    q.setMaxRows(DEFAULT_PREVIEW_ROWS);


    for (TransformerJobBuilder<?> tjb : transformerJobs) {
      initialize(tjb);
    }


    // getting the output columns can be an expensive call, so we do it
    // upfront in stead of for each row.
    final Map<TransformerJobBuilder<?>, List<MutableInputColumn<?>>> outputColumns = new LinkedHashMap<TransformerJobBuilder<?>, List<MutableInputColumn<?>>>();
    for (TransformerJobBuilder<?> tjb : transformerJobs) {
      List<MutableInputColumn<?>> cols = tjb.getOutputColumns();
      outputColumns.put(tjb, cols);
    }


    final List<InputRow> result = new ArrayList<InputRow>();
    final DataSet dataSet = dc.executeQuery(q);
    int rowNumber = 0;
    while (dataSet.next()) {
      Row row = dataSet.getRow();
      InputRow inputRow = new MetaModelInputRow(rowNumber, row);

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Examples of org.eobjects.metamodel.DataContext

          cols.add(col.getPhysicalColumn());
        }
      }
      columns = cols.toArray(new Column[cols.size()]);
    }
    DataContext dc = _dataContextProvider.getDataContext();
    Query q = dc.query().from(columns[0].getTable()).select(columns).toQuery();


    DataSetWindow window = new DataSetWindow(q, dc, PAGE_SIZE, _windowContext);
    window.setVisible(true);
  }

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Examples of org.eobjects.metamodel.DataContext

  }


  @Override
  public Table getPreviewTable(Datastore datastore) {
    DataContextProvider dcp = datastore.getDataContextProvider();
    DataContext dc = dcp.getDataContext();


    // It is likely that schemas are cached, and since it is likely a new
    // table, we refresh the schema.
    dc.refreshSchemas();


    Table table = dc.getDefaultSchema().getTableByName(_tableName);
    dcp.close();
    return table;
  }

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Examples of org.eobjects.metamodel.DataContext


    // make table name safe
    tableName = DatastoreOutputUtils.safeName(tableName);


    synchronized (DatastoreOutputWriter.class) {
      final DataContext dc = DataContextFactory.createJdbcDataContext(_connection);
      dc.refreshSchemas();
      final String[] tableNames = dc.getDefaultSchema().getTableNames();


      if (truncateExisting) {
        _tableName = tableName;


        for (String existingTableName : tableNames) {

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