Examples with EntityNode easik.sketch.vertex.EntityNode used on opensource projects

Example 56 with EntityNode

use of easik.sketch.vertex.EntityNode in project fql by CategoricalData.

the class Sketch method buildpath.

/**
 * Recursive method that does most of the work for multPathWarning
 *
 * @return ArrayList used to create path
 * @author Federico Mora
 */
@SuppressWarnings("unchecked")
private static ArrayList<LinkedList<SketchEdge>> buildpath(EntityNode start, EntityNode end) {
    ArrayList<SketchEdge> visited = new ArrayList<>();
    ArrayList<LinkedList<SketchEdge>> paths = new ArrayList<>();
    // BFS uses LinkedList data structure
    LinkedList<EntityNode> LinkedList = new LinkedList<>();
    LinkedList.add(start);
    // visited.add(start);
    while (!LinkedList.isEmpty()) {
        EntityNode node = LinkedList.remove();
        for (SketchEdge ed : node.getOutgoingEdges()) {
            if (!visited.contains(ed)) {
                visited.add(ed);
                // find a LinkedList to add the edge to
                boolean queueExists = false;
                LinkedList<SketchEdge> newPath = null;
                for (LinkedList<SketchEdge> q : paths) {
                    if (q.peekLast().getTargetEntity() == ed.getSourceEntity()) {
                        newPath = (java.util.LinkedList<SketchEdge>) q.clone();
                        newPath.add(ed);
                        queueExists = true;
                        continue;
                    }
                }
                // else make a new LinkedList
                if (!queueExists) {
                    LinkedList<SketchEdge> p = new LinkedList<>();
                    p.add(ed);
                    paths.add(p);
                } else {
                    paths.add(newPath);
                }
                if (ed.getTargetEntity() == end) {
                // return paths;
                } else {
                    LinkedList.add(ed.getTargetEntity());
                }
            }
        }
    }
    return paths;
}

Example 57 with EntityNode

use of easik.sketch.vertex.EntityNode in project fql by CategoricalData.

the class JDBCViewUpdateMonitor method getDialogOptions.

/**
 * Gets the options needed for open a dialog for row insertion: map of
 * attribute names to their type, and a map of foreign key names to a JTable
 * of data they point to.
 *
 * @param table
 *            The node representing the table who's information we want
 * @return Wrapper class holding the maps needed for insertion dialog
 */
private DialogOptions getDialogOptions(final EntityNode table) {
    @SuppressWarnings("unused") final HashSet<ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>> constraints = new HashSet<ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>>(table.getConstraints());
    final HashMap<String, EasikType> attToType = new HashMap<>(25);
    final LinkedHashMap<String, EntityNode> fKeys = new LinkedHashMap<>(10);
    // find attributes, and map to their EasikType
    for (final EntityAttribute<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> ea : table.getEntityAttributes()) {
        attToType.put(ea.getName(), ea.getType());
    }
    // find all foreign keys, and add to foreign key set
    for (final SketchEdge ske : table.getOutgoingEdges()) {
        fKeys.put(cn.tableFK(ske), ske.getTargetEntity());
    }
    return new DialogOptions(attToType, fKeys);
}

Example 58 with EntityNode

use of easik.sketch.vertex.EntityNode in project fql by CategoricalData.

the class DeleteFromSketchAction method actionPerformed.

/**
 * When the action is performed, selection is deleted if possible. Error is
 * displayed if no graph item is selected.
 *
 * @param e
 *            The action event
 */
@Override
@SuppressWarnings({ "unchecked", "rawtypes" })
public void actionPerformed(ActionEvent e) {
    Sketch _ourSketch = _theFrame.getMModel();
    // The confirm delete message. If we're currently synced with a db, add
    // that to the message;
    String confirm = _ourSketch.isSynced() ? "Warning: this sketch is currently synced with a db; delete and break synchronization?" : "Are you sure you want to delete selected item(s)?";
    if (JOptionPane.showConfirmDialog(_theFrame, confirm, "Warning!", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE) == JOptionPane.CANCEL_OPTION) {
        return;
    }
    Object[] currentSelection = _ourSketch.getSelectionCells();
    if (currentSelection.length == 0) {
        JOptionPane.showMessageDialog(_theFrame, "Operation must be performed with something selected", "Error", JOptionPane.ERROR_MESSAGE);
    } else {
        _ourSketch.getGraphModel().beginUpdate();
        // First, delete any constraints:
        for (Object o : currentSelection) {
            if (o instanceof ModelConstraint) {
                _ourSketch.removeConstraint((ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) o);
                for (ViewNode v : _ourSketch.getViews()) {
                    if (v.getMModel().getConstraints().containsKey(((ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) o).getID())) {
                        v.getMModel().removeConstraint(((ModelConstraint) o));
                    }
                }
            }
        }
        // THEN any edges:
        for (Object o : currentSelection) {
            if (o instanceof SketchEdge) {
                for (ViewNode v : _theFrame.getMModel().getViews()) {
                    if (v.getMModel().getEdges().containsKey(((SketchEdge) o).getName())) {
                        // put up a warning cause this exists in a View
                        if (JOptionPane.showConfirmDialog(_theFrame, "SketchEdge " + ((SketchEdge) o).getName() + " exists in a View. Continue and delete in view as well?", "Warning!", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE) == JOptionPane.CANCEL_OPTION) {
                            return;
                        }
                        // if we want to proceed and delete it...
                        v.getMModel().removeEdge(v.getMModel().getEdges().get(((SketchEdge) o).getName()));
                    }
                }
                _ourSketch.removeEdge((SketchEdge) o);
            }
        }
        // Then finally, any entities.
        for (Object o : currentSelection) {
            if (o instanceof EntityNode) {
                for (ViewNode v : _theFrame.getMModel().getViews()) {
                    if (v.getMModel().getEntityNodePairs().containsKey((o))) {
                        // put up a warning cause this exists in a View
                        if (JOptionPane.showConfirmDialog(_theFrame, "EntityNode " + ((EntityNode) o).getName() + " is being queried by a View. Continue and delete in view as well?", "Warning!", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE) == JOptionPane.CANCEL_OPTION) {
                            return;
                        }
                        // if we want to proceed and delete it...
                        v.getMModel().removeNode(v.getMModel().getEntityNodePairs().get(o));
                    }
                }
                _ourSketch.removeNode((EntityNode) o);
            }
        }
        _ourSketch.setDirty();
        _ourSketch.getGraphModel().endUpdate();
        _ourSketch.setSynced(false);
    }
    // Clear selection after things have been deleted
    _ourSketch.clearSelection();
}

Example 59 with EntityNode

use of easik.sketch.vertex.EntityNode in project fql by CategoricalData.

the class DeleteRowAction method actionPerformed.

/**
 * Create the new entity and set up its name
 *
 * @param e
 *            The action event
 */
@Override
public void actionPerformed(ActionEvent e) {
    Object[] currentSelection = _theSketch.getSelectionCells();
    Object selected = currentSelection[0];
    if (!(selected instanceof EntityNode)) {
        System.err.println("Action only available on entity nodes: easik.ui.menu.popup.DeleteRowAction");
        return;
    }
    EntityNode table = (EntityNode) selected;
    ArrayList<String> domains = new ArrayList<>();
    // warn user about possible cascades
    for (SketchEdge sk : _theSketch.getEdges().values()) {
        if (sk.getTargetEntity().getName().equals(table.getName()) && sk.getCascading() == Cascade.CASCADE) {
            domains.add(sk.getSourceEntity().getName());
        }
    }
    if (domains.size() > 0) {
        if (JOptionPane.showConfirmDialog(_theSketch, "Warning: Rows in this table may have foreign rows in " + domains.toString() + " which will be deleted on cascade", "Warning", JOptionPane.OK_CANCEL_OPTION, JOptionPane.WARNING_MESSAGE) == JOptionPane.CANCEL_OPTION) {
            return;
        }
    }
    UpdateMonitor um = _theSketch.getDatabase().newUpdateMonitor();
    um.deleteFrom(table);
}

Example 60 with EntityNode

use of easik.sketch.vertex.EntityNode 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()) {
			 * 
			 * }
			 */
    }
}