Examples with NormalEdge easik.sketch.edge.NormalEdge used on opensource projects

Example 1 with NormalEdge

use of easik.sketch.edge.NormalEdge in project fql by CategoricalData.

the class KosarajuSCC method transposeDFS.

/**
 * Depth first search of the transpose
 *
 * @param v
 */
public void transposeDFS(EntityNode v) {
    visited.add(v);
    sccList.add(v);
    for (SketchEdge sk : graph.getEdges().values()) {
        if (sk instanceof NormalEdge || sk instanceof InjectiveEdge) {
            if (sk.getTargetEntity().equals(v)) {
                EntityNode t = sk.getSourceEntity();
                if (!visited.contains(t)) {
                    transposeDFS(t);
                }
            }
        }
    }
}

Example 2 with NormalEdge

use of easik.sketch.edge.NormalEdge in project fql by CategoricalData.

the class KosarajuSCC method dfs.

/**
 * Depth first search
 */
public void dfs(EntityNode v) {
    visited.add(v);
    for (SketchEdge sk : v.getOutgoingEdges()) {
        if (sk instanceof NormalEdge || sk instanceof InjectiveEdge) {
            EntityNode t = sk.getTargetEntity();
            if (!visited.contains(t)) {
                dfs(t);
            }
        }
    }
    stack.push(v);
}

Example 3 with NormalEdge

use of easik.sketch.edge.NormalEdge in project fql by CategoricalData.

the class SketchHandler method startElement.

/**
 * Overloaded method that is called any time the start of an element is
 * found
 *
 * @param namespace
 * 			@see org.xml.sax.helpers.DefaultHandler
 * @param localName
 * 			@see org.xml.sax.helpers.DefaultHandler
 * @param qName
 * 			@see org.xml.sax.helpers.DefaultHandler
 * @param atts
 * 			@see org.xml.sax.helpers.DefaultHandler
 */
@Override
public void startElement(String namespace, String localName, String qName, Attributes atts) {
    _currNode = qName;
    if (qName.equals("entity")) {
        String name = atts.getValue("name");
        int x = Integer.parseInt(atts.getValue("x"));
        int y = Integer.parseInt(atts.getValue("y"));
        if (_entityNodes.containsKey(name)) {
            System.err.println("Duplicate nodes found in XML");
            return;
        }
        _newNode = new EntityNode(name, x, y, _theFrame.getMModel());
        _entityNodes.put(name, _newNode);
        _curNodeAtts = new LinkedHashMap<>();
    } else if (qName.equals("attribute")) {
        EasikType type;
        // attributeType was created by old Easik versions, and is the SQL
        // type signature
        // (such as "VARCHAR(255)"). Easik now uses attributeTypeClass,
        // containing the
        // class name, and any number of extra attributes which
        // EasikType.newType() uses to
        // recreate the appropriate EasikType object.
        String typesig = atts.getValue("attributeType");
        if (typesig != null) {
            type = EasikType.typeFromSignature(typesig);
        } else {
            String typename = atts.getValue("attributeTypeClass");
            try {
                type = EasikType.newType(typename, attributeMap(atts, "attributeType", "attributeTypeClass", "name"));
            } catch (ClassNotFoundException e) {
                System.err.println("Invalid type found in XML: '" + typename + "' (" + e.getMessage() + ")");
                return;
            }
        }
        EntityAttribute<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> myAtt = new EntityAttribute<>(atts.getValue("name"), type, _newNode);
        _curNodeAtts.put(atts.getValue("name"), myAtt);
        _newNode.addEntityAttribute(myAtt);
    } else if (qName.equals("uniqueKey")) {
        // New EASIK has noderef, telling us what we refer to. In old easik,
        // uniqueKey is under
        // the node itself (but as a result, cannot contain edge
        // references).
        String noderef = atts.getValue("noderef");
        if (noderef != null) {
            // Restore _newNode and _curNodeAtts, since we're going to need
            // them:
            _newNode = _entityNodes.get(noderef);
            _curNodeAtts = new LinkedHashMap<>();
            for (EntityAttribute<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> att : _newNode.getEntityAttributes()) {
                _curNodeAtts.put(att.getName(), att);
            }
        }
        _curUniqueKeyName = atts.getValue("name");
        _curUniqueKeyElems = new LinkedList<>();
    } else if (qName.equals("attref")) {
        _curUniqueKeyElems.add(_curNodeAtts.get(atts.getValue("name")));
    } else if (qName.equals("edgekeyref")) {
        SketchEdge e = _edges.get(atts.getValue("id"));
        if (e instanceof UniqueIndexable) {
            _curUniqueKeyElems.add((UniqueIndexable) e);
        } else {
            System.err.println("Encountered an non-unique-indexable <edgekeyref> " + e);
        }
    } else if (qName.equals("edge")) {
        SketchEdge newEdge;
        String edgeType = atts.getValue("type");
        // injective is an old EASIK attribute:
        String injective = atts.getValue("injective");
        if (injective != null) {
            edgeType = atts.getValue("injective").equals("true") ? "injective" : "normal";
        }
        EntityNode source = _entityNodes.get(atts.getValue("source"));
        EntityNode target = _entityNodes.get(atts.getValue("target"));
        String id = atts.getValue("id");
        String cascadeAtt = atts.getValue("cascade");
        if (cascadeAtt == null) {
            // This is from an export before Easik had per-edge cascading
            // (in other words, before r583)
            // We use the global preferences for cascading
            String key = "sql_cascade", def = "restrict";
            if (edgeType.equals("partial")) {
                key = "sql_cascade_partial";
                def = "set_null";
            }
            cascadeAtt = Easik.getInstance().getSettings().getProperty(key, def);
        }
        SketchEdge.Cascade cascade = cascadeAtt.equals("set_null") ? SketchEdge.Cascade.SET_NULL : cascadeAtt.equals("cascade") ? SketchEdge.Cascade.CASCADE : SketchEdge.Cascade.RESTRICT;
        if (edgeType.equals("injective")) {
            newEdge = new InjectiveEdge(source, target, id, cascade);
        } else if (edgeType.equals("partial")) {
            newEdge = new PartialEdge(source, target, id, cascade);
        } else {
            newEdge = new NormalEdge(source, target, id, cascade);
        }
        _edges.put(id, newEdge);
    } else if (qName.equals("path")) {
        _curPath = new LinkedList<>();
        _curPathId = atts.getValue("id");
        _curDomain = _entityNodes.get(atts.getValue("domain"));
    } else if (qName.equals("edgeref")) {
        _curPath.add(_edges.get(atts.getValue("id")));
    } else if (// TRIANGLES
    qName.equals("sumconstraint") || qName.equals("pullbackconstraint") || qName.equals("productconstraint") || qName.equals("commutativediagram") || qName.equals("equalizerconstraint") || qName.equals("limitconstraint")) // CF2012
    {
        _curConstraintX = Integer.parseInt(atts.getValue("x"));
        _curConstraintY = Integer.parseInt(atts.getValue("y"));
        _curConstraintVisible = atts.getValue("isVisible").equals("true");
        _curConstraintPaths = new ArrayList<>();
        _allConstraintsVisible = atts.getValue("isVisible").equals("true");
    } else if (qName.equals("pathref")) {
        // This is for compatibility with old versions of Easik (pre-2.0);
        // new versions
        // put <path> elements directly inside the various constraint
        // elements.
        _curConstraintPaths.add(_allPaths.get(atts.getValue("id")));
    } else if (qName.equals("connectionParam")) {
        _connParams.put(atts.getValue("name"), atts.getValue("value"));
    } else if (qName.equals("synchronized")) {
        // The existance of this tag tells us the sketch is synchronized
        _curSketchSync = true;
    }
}

Example 4 with NormalEdge

use of easik.sketch.edge.NormalEdge in project fql by CategoricalData.

the class NewSketchEdgeAction 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) {
    Sketch _ourSketch = _theFrame.getMModel();
    // 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 = _ourSketch.getSelectionCells();
    EntityNode[] node = new EntityNode[(_edgeType == Edge.SELF) ? 1 : 2];
    if (currentSelection.length == node.length) {
        for (int i = 0; i < node.length; i++) {
            node[i] = null;
            if (currentSelection[i] instanceof EntityNode) {
                node[i] = (EntityNode) currentSelection[i];
            }
        }
    }
    if ((_edgeType == Edge.SELF) && (node[0] == null)) {
        JOptionPane.showMessageDialog(_theFrame, "Operation must be performed with one entity selected", "Error", JOptionPane.ERROR_MESSAGE);
    } else if ((_edgeType != Edge.SELF) && ((node[0] == null) || (node[1] == null))) {
        JOptionPane.showMessageDialog(_theFrame, "Operation must be performed with two entities selected", "Error", JOptionPane.ERROR_MESSAGE);
    } else {
        EdgeOptions opts = new EdgeOptions(_theFrame, _edgeType, node[0], (_edgeType == Edge.SELF) ? null : node[1]);
        if (opts.isAccepted()) {
            SketchEdge edge;
            if (_edgeType == Edge.SELF) {
                edge = new PartialEdge(node[0], node[0], opts.getName(), opts.getCascadeMode());
            } else {
                // UI:
                if (opts.isReversed()) {
                    node = new EntityNode[] { node[1], node[0] };
                }
                if (_edgeType == Edge.PARTIAL) {
                    edge = new PartialEdge(node[0], node[1], opts.getName(), opts.getCascadeMode());
                } else if (_edgeType == Edge.INJECTIVE) {
                    edge = new InjectiveEdge(node[0], node[1], opts.getName(), opts.getCascadeMode());
                } else {
                    edge = new NormalEdge(node[0], node[1], opts.getName(), opts.getCascadeMode());
                }
            }
            _ourSketch.addEdge(edge);
            _ourSketch.setDirty();
            _ourSketch.setSynced(false);
        }
    }
}