Examples with QueryNode easik.view.vertex.QueryNode used on opensource projects

Example 16 with QueryNode

use of easik.view.vertex.QueryNode in project fql by CategoricalData.

the class NewQueryNodeAction method actionPerformed.

/**
 * Create the new query node.
 *
 * @param e
 *            The action event
 */
@Override
public void actionPerformed(ActionEvent e) {
    String defaultName = _theFrame.getMModel().getNewName();
    QueryNode newNode;
    try {
        newNode = new QueryNode(defaultName, (int) _newPoint.getX(), (int) _newPoint.getY(), _theFrame.getMModel(), "");
        DefineQueryNodeDialog dqnd = new DefineQueryNodeDialog(_theFrame, "New Query Node", newNode);
        if (!dqnd.isAccepted()) {
            return;
        }
        String name = dqnd.getName();
        while (name.equals("") || _theFrame.getMModel().isNameUsed(name)) {
            JOptionPane.showMessageDialog(_theFrame, "Error while naming entity.\n" + "Please ensure that entity name is:\n" + "1) Not blank\n" + "2) Not already in use", "Error", JOptionPane.ERROR_MESSAGE);
            name = (String) JOptionPane.showInputDialog(_theFrame, "Name for new entity:", "Get name", JOptionPane.QUESTION_MESSAGE, null, null, name);
            if (name == null) {
                return;
            }
            name = name.trim();
        }
        String query = dqnd.getQuery();
        newNode.setName(name);
        newNode.setQuery(query);
        _theFrame.getMModel().addEntity(newNode);
        _theFrame.getMModel().setDirty();
    } catch (QueryException e1) {
        // this can technically throw an exception in two spots but will
        // only really throw in the setQuery call
        // because the first call, a constructor call to queryNode, gives an
        // emptry query which is ok
        JOptionPane.showMessageDialog(_theFrame.getParent(), "New Query node not created. Not valid query.\n" + e1.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
    }
}

Example 17 with QueryNode

use of easik.view.vertex.QueryNode in project fql by CategoricalData.

the class NewViewEdgeAction method actionPerformed.

/**
 * The action for creating a new edge. Make sure the selection is alright,
 * and then create the edge.
 *
 * @param e
 *            The action event
 */
@Override
public void actionPerformed(ActionEvent e) {
    View _ourView = _theFrame.getMModel();
    Sketch _ourSketch = _ourView.getSketch();
    boolean foundEdge = false, forward = false, reverse = false;
    // cancel operation
    if (_ourSketch.isSynced()) {
        if (JOptionPane.showConfirmDialog(_theFrame, "Warning: this sketch is currently synced with a db; continue and break synchronization?", "Warning!", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE) == JOptionPane.CANCEL_OPTION) {
            return;
        }
    }
    Object[] currentSelection = _ourView.getSelectionCells();
    QueryNode currNode = (QueryNode) currentSelection[0];
    String queryString = currNode.getQuery();
    String entityNodeName = null;
    // find corresponding entity node name
    String[] tokens = queryString.split("\\s+");
    for (int i = 0; i < tokens.length; i++) {
        if (tokens[i].equalsIgnoreCase("from")) {
            entityNodeName = tokens[i + 1];
        }
    }
    EntityNode[] node = new EntityNode[2];
    // set corresponding node in order to use
    for (EntityNode sketchNode : _ourSketch.getEntities()) {
        if (sketchNode.getName().equalsIgnoreCase(entityNodeName)) {
            node[0] = sketchNode;
        }
    }
    if (currentSelection.length > 1) {
        currNode = (QueryNode) currentSelection[1];
        queryString = currNode.getQuery();
        entityNodeName = null;
        // find corresponding entity node name
        tokens = queryString.split("\\s+");
        for (int i = 0; i < tokens.length; i++) {
            if (tokens[i].equalsIgnoreCase("from")) {
                entityNodeName = tokens[i + 1];
            }
        }
        // set corresponding node in order to use
        for (EntityNode sketchNode : _ourSketch.getEntities()) {
            if (sketchNode.getName().equalsIgnoreCase(entityNodeName)) {
                node[1] = sketchNode;
            }
        }
        for (SketchEdge edge : _ourSketch.getEdges().values()) {
            View_Edge vEdge;
            forward = (edge.getTargetEntity().equals(node[0]) && edge.getSourceEntity().equals(node[1]));
            reverse = (edge.getTargetEntity().equals(node[1]) && edge.getSourceEntity().equals(node[0]));
            if (forward || reverse) {
                // System.out.println("This edge exists");
                foundEdge = true;
                // need to move down??
                if (edge.isPartial()) {
                    // ***NEED TO FIGURE OUT CASCADING
                    vEdge = new PartialViewEdge((QueryNode) currentSelection[0], (QueryNode) currentSelection[0], edge.getName());
                } else if (edge.isInjective()) {
                    // **NEED TO FIGURE OUT CASCADING
                    if (forward) {
                        vEdge = new InjectiveViewEdge((QueryNode) currentSelection[1], (QueryNode) currentSelection[0], edge.getName(), Cascade.RESTRICT);
                    } else {
                        vEdge = new InjectiveViewEdge((QueryNode) currentSelection[0], (QueryNode) currentSelection[1], edge.getName(), Cascade.RESTRICT);
                    }
                // System.out.println(vEdge.getName());
                } else {
                    if (forward) {
                        vEdge = new NormalViewEdge((QueryNode) currentSelection[1], (QueryNode) currentSelection[0], edge.getName());
                    } else {
                        vEdge = new NormalViewEdge((QueryNode) currentSelection[0], (QueryNode) currentSelection[1], edge.getName());
                    }
                }
                _ourView.addEdge(vEdge);
            }
        }
        if (!foundEdge) {
        // System.out.println("This edge does not exist");
        }
    } else // end checking if 2 nodes
    // edge that goes into itself
    {
    /*
			 * for(SketchEdge edge: node[0].getOutgoingEdges()) {
			 * 
			 * }
			 */
    }
}

Example 18 with QueryNode

use of easik.view.vertex.QueryNode in project fql by CategoricalData.

the class ViewDeleteAction method actionPerformed.

/**
 * @param e
 *            The action event
 * @author Sarah van der Laan
 */
@Override
public void actionPerformed(ActionEvent e) {
    Object[] currentSelection = _ourView.getSelectionCells();
    QueryNode currNode = (QueryNode) currentSelection[0];
    String queryString = currNode.getQuery();
    String entityNodeName = null;
    // find corresponding entity node name
    String[] tokens = queryString.split("\\s+");
    for (int i = 0; i < tokens.length; i++) {
        if (tokens[i].equalsIgnoreCase("from")) {
            entityNodeName = tokens[i + 1];
        }
    }
    EntityNode _ourEntityNode = null;
    // set corresponding node in order to use
    for (EntityNode node : _ourSketch.getEntities()) {
        if (node.getName().equalsIgnoreCase(entityNodeName)) {
            _ourEntityNode = node;
        }
    }
    if (!_ourSketch.hasDatabase()) {
        JOptionPane.showMessageDialog(null, "Not currently connected to a database.");
        return;
    } else {
        UpdateMonitor um = _ourSketch.getDatabase().newUpdateMonitor();
        if (um == null) {
            JOptionPane.showMessageDialog(null, "Could not perform update: problem accessing db driver");
            return;
        }
        if (_ourEntityNode != null)
            um.deleteFrom(_ourEntityNode);
    }
}