Examples with ColumnEntry easik.ui.datamanip.ColumnEntry used on opensource projects

Example 1 with ColumnEntry

use of easik.ui.datamanip.ColumnEntry in project fql by CategoricalData.

the class JDBCUpdateMonitor method deleteFrom.

/**
 * Trys to delete from a given table. If the action will break a constraint,
 * it is aborted and the user is notified.
 *
 * @param table
 *            The table from which we will attempt the delete
 * @return The success of the delete
 */
@Override
public boolean deleteFrom(final EntityNode table) {
    final int[] selectedPKs = DatabaseUtil.selectRowPKs(table.getMModel().getFrame(), table);
    // if there was a selection
    if (selectedPKs.length > 0) {
        final String PKcolumn = cn.tablePK(table);
        final StringBuilder sb = new StringBuilder("DELETE FROM " + dbd.quoteId(table.getName()) + " WHERE ");
        // populate input set for prepared statement while adding column
        // names
        final Set<ColumnEntry> input = new LinkedHashSet<>(selectedPKs.length);
        for (final int pk : selectedPKs) {
            for (EntityAttribute<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> ea : table.getHiddenEntityAttributes()) {
                try {
                    ResultSet result = dbd.executeQuery("SELECT * FROM " + table.getName() + " Where id=" + pk + " AND " + ea.getName() + "= 1");
                    // we do this by .isBeforeFirst()
                    if (result.isBeforeFirst()) {
                        JOptionPane.showMessageDialog(null, "Unable to execute DELETE: Deleting row will cause constraint inconsistency");
                        return false;
                    }
                } catch (SQLException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            sb.append(PKcolumn).append("=? OR ");
            input.add(new ColumnEntry(PKcolumn, Integer.toString(pk), new Int()));
        }
        // remove last ',OR '
        sb.delete(sb.length() - 4, sb.length());
        try {
            dbd.executePreparedUpdate(sb.toString(), input);
        } catch (SQLException e) {
            JOptionPane.showMessageDialog(null, "Unable to execute DELETE: " + e.getMessage());
        }
    }
    return true;
}

Example 2 with ColumnEntry

use of easik.ui.datamanip.ColumnEntry in project fql by CategoricalData.

the class JDBCViewUpdateMonitor method deleteFrom.

/**
 * Trys to delete from a given table. If the action will break a constraint,
 * it is aborted and the user is notified.
 *
 * @param table
 *            The table from which we will attempt the delete
 * @return The success of the delete
 */
@Override
public boolean deleteFrom(final EntityNode table) {
    final int[] selectedPKs = DatabaseUtil.selectRowPKs(table.getMModel().getFrame(), table);
    // if there was a selection
    if (selectedPKs.length > 0) {
        final String PKcolumn = cn.tablePK(table);
        final StringBuilder sb = new StringBuilder("DELETE FROM " + dbd.quoteId(table.getName()) + " WHERE ");
        // populate input set for prepared statement while adding column
        // names
        final Set<ColumnEntry> input = new LinkedHashSet<>(selectedPKs.length);
        for (final int pk : selectedPKs) {
            sb.append(PKcolumn).append("=? OR ");
            input.add(new ColumnEntry(PKcolumn, Integer.toString(pk), new Int()));
        }
        // remove last ',OR '
        sb.delete(sb.length() - 4, sb.length());
        try {
            dbd.executePreparedUpdate(sb.toString(), input);
        } catch (SQLException e) {
            JOptionPane.showMessageDialog(null, "Unable to execute DELETE: " + e.getMessage());
        }
    }
    return true;
}

Example 3 with ColumnEntry

use of easik.ui.datamanip.ColumnEntry in project fql by CategoricalData.

the class JDBCViewUpdateMonitor method insert.

/**
 * Determines if insertion into a given table requires special handling due
 * to constraints it may be in. As of now, special cases that may result
 * from being in multiple constraints are not supported.
 *
 * @param table
 *            The table into which we wish to insert data
 * @return Success of the insertion
 */
@Override
public boolean insert(final EntityNode table) {
    final DialogOptions dOpts = getDialogOptions(table);
    final String lineSep = EasikTools.systemLineSeparator();
    // a set of column-value pairs of which we wish to force a specific
    // value, leaving the user out
    final Set<ColumnEntry> forced = new HashSet<>(10);
    // contstraint. Tighten up?
    for (final ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> c : table.getConstraints()) {
        if (c instanceof SumConstraint) {
            // of its foreign key, so remove it from the dialog's selection
            for (final ModelPath<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> sp : c.getPaths()) {
                if (sp.getDomain() == table) {
                    // we force the value 0 to avoid out driver to kick back
                    // an error for having a null fKey
                    final String columnName = cn.tableFK(sp.getFirstEdge());
                    dOpts.fKeys.remove(columnName);
                    forced.add(new ColumnEntry(columnName, "0", new Int()));
                    break;
                }
            }
        }
        if (c instanceof CommutativeDiagram) {
            // commute
            if (c.getPaths().get(0).getDomain() == table) {
                JOptionPane.showMessageDialog(null, "Be sure that the following paths commute:" + lineSep + EasikTools.join(lineSep, c.getPaths()), "Commutative diagram", JOptionPane.INFORMATION_MESSAGE);
                try {
                    return promptAndInsert(table, dOpts, forced);
                } catch (SQLException e) {
                    JOptionPane.showMessageDialog(null, "Not all of the following paths commute -- insert aborted!" + lineSep + EasikTools.join(lineSep, c.getPaths()), "Commutative diagram failure", JOptionPane.ERROR_MESSAGE);
                }
            }
        }
        if (c instanceof PullbackConstraint) {
            // happens, we want to let the user update the new record
            if (((PullbackConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) c).getTarget() != table) {
                final EntityNode pullback = ((PullbackConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) c).getSource();
                try {
                    // get row count pre-insert
                    ResultSet result = dbd.executeQuery("SELECT COUNT(*) FROM " + pullback.getName() + " X");
                    result.next();
                    final int preRowCount = result.getInt(1);
                    if (!promptAndInsert(table, dOpts)) {
                        return false;
                    }
                    // get row count post-insert
                    result = dbd.executeQuery("SELECT COUNT(*) FROM " + pullback.getName() + " X");
                    result.next();
                    final int postRowCount = result.getInt(1);
                    // new row (the one with the highest primary ID)
                    if (postRowCount > preRowCount) {
                        result = dbd.executeQuery("SELECT MAX(" + cn.tablePK(pullback) + ") FROM " + pullback.getName() + " X");
                        result.next();
                        final int pk = result.getInt(1);
                        if (JOptionPane.showConfirmDialog(null, "New record in pullback table '" + pullback.getName() + "'. Enter column data?", "Insert column data?", JOptionPane.YES_NO_OPTION) == 0) {
                            updateRow(pullback, pk);
                        }
                    }
                    return true;
                } catch (SQLException e) {
                    JOptionPane.showMessageDialog(null, "Could not execute update: " + e.getMessage());
                }
            }
        }
        if (c instanceof ProductConstraint) {
            // inserting into the product.
            for (final ModelPath<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> sp : c.getPaths()) {
                if (sp.getCoDomain() == table) {
                    final EntityNode product = sp.getDomain();
                    try {
                        if (!promptAndInsert(table, dOpts)) {
                            return false;
                        }
                        // get the new records from the product. They are
                        // any record who's fk to our INSERT factor matches
                        // the primary id of the last insert
                        ResultSet result = dbd.executeQuery("SELECT MAX(" + cn.tablePK(table) + ") FROM " + table.getName() + " X");
                        result.next();
                        final int newPK = result.getInt(1);
                        result = dbd.executeQuery("SELECT * FROM " + product.getName() + " WHERE " + cn.tableFK(sp.getFirstEdge()) + " = " + newPK);
                        // get count of new rows as result of INSERT
                        result.last();
                        final int newRows = result.getRow();
                        result.beforeFirst();
                        if ((newRows > 0) && (JOptionPane.showConfirmDialog(null, newRows + " new rows in product table '" + product.getName() + "'. Insert column data?", "Insert column data?", JOptionPane.YES_NO_OPTION) == 0)) {
                            while (result.next()) {
                                updateRow(product, result.getInt(1));
                            }
                        }
                    } catch (SQLException e) {
                        JOptionPane.showMessageDialog(null, e.getMessage());
                    }
                    return true;
                }
            }
        }
        if (c instanceof LimitConstraint) {
        // TRIANGLES TODO CF2012 Incomplete
        }
    }
    try {
        return promptAndInsert(table, dOpts, forced);
    } catch (SQLException e) {
        JOptionPane.showMessageDialog(null, "Could not execute update: " + e.getMessage());
        return false;
    }
}

Example 4 with ColumnEntry

use of easik.ui.datamanip.ColumnEntry in project fql by CategoricalData.

the class JDBCDriver method executePreparedUpdate.

/**
 * Executes a given SQL updating statement. Which may be an INSERT, UPDATE,
 * or DELETE statement. The statement must be in the form expected by
 * java.sql.PreparedStatement
 *
 * @param sql
 *            The SQL statement to execute
 * @param input
 *            The set of ColumnEntry objects from which our values are
 *            retrieved. Note: This works but relys on 'input' being
 *            iterated over in the same order that it was when 'sql' was
 *            generated.
 *
 * @throws SQLException
 */
public void executePreparedUpdate(final String sql, final Set<ColumnEntry> input) throws SQLException {
    final PreparedStatement ps = prepareStatement(sql);
    int col = 0;
    for (final ColumnEntry entry : input) {
        final EasikType type = entry.getType();
        @SuppressWarnings("unused") final String value = entry.getValue();
        col++;
        // if value is NULL, assign and continue
        if ("".equals(entry.getValue())) {
            ps.setNull(col, type.getSqlType());
            continue;
        }
        // bind appropriate type to the prepared statement
        type.bindValue(ps, col, entry.getValue());
    }
    ps.execute();
}

Example 5 with ColumnEntry

use of easik.ui.datamanip.ColumnEntry in project fql by CategoricalData.

the class JDBCUpdateMonitor method insert.

/**
 * Determines if insertion into a given table requires special handling due
 * to constraints it may be in. As of now, special cases that may result
 * from being in multiple constraints are not supported.
 *
 * @param table
 *            The table into which we wish to insert data
 * @return Success of the insertion
 */
@Override
public boolean insert(final EntityNode table) {
    final DialogOptions dOpts = getDialogOptions(table);
    final String lineSep = EasikTools.systemLineSeparator();
    // a set of column-value pairs of which we wish to force a specific
    // value, leaving the user out
    final Set<ColumnEntry> forced = new HashSet<>(10);
    // contstraint. Tighten up?
    for (final ModelConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> c : table.getConstraints()) {
        if (c instanceof SumConstraint) {
            // of its foreign key, so remove it from the dialog's selection
            for (final ModelPath<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> sp : c.getPaths()) {
                if (sp.getDomain() == table) {
                    // we force the value 0 to avoid out driver to kick back
                    // an error for having a null fKey
                    final String columnName = cn.tableFK(sp.getFirstEdge());
                    dOpts.fKeys.remove(columnName);
                    forced.add(new ColumnEntry(columnName, "0", new Int()));
                    break;
                }
            }
        }
        if (c instanceof CommutativeDiagram) {
            // commute
            if (c.getPaths().get(0).getDomain() == table) {
                JOptionPane.showMessageDialog(null, "Be sure that the following paths commute:" + lineSep + EasikTools.join(lineSep, c.getPaths()), "Commutative diagram", JOptionPane.INFORMATION_MESSAGE);
                try {
                    return promptAndInsert(table, dOpts, forced);
                } catch (SQLException e) {
                    /*
						 * if(e instanceof com.mysql.jdbc.exceptions.jdbc4.
						 * MySQLIntegrityConstraintViolationException){
						 * //injective property violated
						 * JOptionPane.showMessageDialog(null, e.getMessage(),
						 * "Injective property violation",
						 * JOptionPane.ERROR_MESSAGE); }else{
						 */
                    JOptionPane.showMessageDialog(null, "Not all of the following paths commute -- insert aborted!" + lineSep + EasikTools.join(lineSep, c.getPaths()), "Commutative diagram failure", JOptionPane.ERROR_MESSAGE);
                // }
                }
            }
        }
        if (c instanceof PullbackConstraint) {
            // happens, we want to let the user update the new record
            if (((PullbackConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) c).getTarget() != table) {
                final EntityNode pullback = ((PullbackConstraint<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge>) c).getSource();
                try {
                    // get row count pre-insert
                    ResultSet result = dbd.executeQuery("SELECT COUNT(*) FROM " + pullback.getName() + " X");
                    result.next();
                    final int preRowCount = result.getInt(1);
                    if (!promptAndInsert(table, dOpts)) {
                        return false;
                    }
                    // get row count post-insert
                    result = dbd.executeQuery("SELECT COUNT(*) FROM " + pullback.getName() + " X");
                    result.next();
                    final int postRowCount = result.getInt(1);
                    // new row (the one with the highest primary ID)
                    if (postRowCount > preRowCount) {
                        result = dbd.executeQuery("SELECT MAX(" + cn.tablePK(pullback) + ") FROM " + pullback.getName() + " X");
                        result.next();
                        final int pk = result.getInt(1);
                        if (JOptionPane.showConfirmDialog(null, "New record in pullback table '" + pullback.getName() + "'. Enter column data?", "Insert column data?", JOptionPane.YES_NO_OPTION) == 0) {
                            updateRow(pullback, pk);
                        }
                    }
                    return true;
                } catch (SQLException e) {
                    JOptionPane.showMessageDialog(null, "Could not execute update. MYSQL Error output:\n" + e.getMessage());
                }
            }
        }
        if (c instanceof ProductConstraint) {
            // inserting into the product.
            for (final ModelPath<SketchFrame, SketchGraphModel, Sketch, EntityNode, SketchEdge> sp : c.getPaths()) {
                if (sp.getCoDomain() == table) {
                    final EntityNode product = sp.getDomain();
                    try {
                        if (!promptAndInsert(table, dOpts)) {
                            return false;
                        }
                        // get the new records from the product. They are
                        // any record who's fk to our INSERT factor matches
                        // the primary id of the last insert
                        ResultSet result = dbd.executeQuery("SELECT MAX(" + cn.tablePK(table) + ") FROM " + table.getName() + " X");
                        result.next();
                        final int newPK = result.getInt(1);
                        result = dbd.executeQuery("SELECT * FROM " + product.getName() + " WHERE " + cn.tableFK(sp.getFirstEdge()) + " = " + newPK);
                        // get count of new rows as result of INSERT
                        result.last();
                        final int newRows = result.getRow();
                        result.beforeFirst();
                        if ((newRows > 0) && (JOptionPane.showConfirmDialog(null, newRows + " new rows in product table '" + product.getName() + "'. Insert column data?", "Insert column data?", JOptionPane.YES_NO_OPTION) == 0)) {
                            while (result.next()) {
                                updateRow(product, result.getInt(1));
                            }
                        }
                    } catch (SQLException e) {
                        JOptionPane.showMessageDialog(null, e.getMessage());
                    }
                    return true;
                }
            }
        }
        if (c instanceof LimitConstraint) {
        // TRIANGLES TODO CF2012 Incomplete
        }
    }
    try {
        return promptAndInsert(table, dOpts, forced);
    } catch (SQLException e) {
        JOptionPane.showMessageDialog(null, "Could not execute update. MYSQL Error output:\n" + e.getMessage());
        System.err.println(e.getMessage());
        return false;
    }
}