Examples with TablePlaceholderKey com.servoy.j2db.query.TablePlaceholderKey used on opensource projects

Example 16 with TablePlaceholderKey

use of com.servoy.j2db.query.TablePlaceholderKey in project servoy-client by Servoy.

the class RowManager method getRowUpdateInfo.

RowUpdateInfo getRowUpdateInfo(Row row, boolean tracking) throws ServoyException {
    try {
        if (row.getRowManager() != this) {
            // $NON-NLS-1$
            throw new IllegalArgumentException("I'm not the row manager from row");
        }
        if (adjustingForChangeByOtherPKHashKey.get() != null && adjustingForChangeByOtherPKHashKey.get().equals(row.getPKHashKey())) {
            row.flagExistInDB();
            // we ignore changes here because stored calc with time element are always changed,resulting in endlessloop between clients
            return null;
        }
        if (row.getLastException() instanceof DataException) {
            // cannot update an row which is not changed (which clears the dataexception)
            return null;
        }
        if (!row.isChanged())
            return null;
        boolean mustRequeryRow = false;
        List<Column> dbPKReturnValues = new ArrayList<Column>();
        SQLSheet.SQLDescription sqlDesc = null;
        int statement_action;
        ISQLUpdate sqlUpdate = null;
        IServer server = fsm.getApplication().getSolution().getServer(sheet.getServerName());
        boolean oracleServer = SQLSheet.isOracleServer(server);
        boolean usesLobs = false;
        Table table = sheet.getTable();
        boolean doesExistInDB = row.existInDB();
        List<String> aggregatesToRemove = new ArrayList<String>(8);
        List<String> changedColumns = null;
        if (doesExistInDB) {
            statement_action = ISQLActionTypes.UPDATE_ACTION;
            sqlDesc = sheet.getSQLDescription(SQLSheet.UPDATE);
            sqlUpdate = (QueryUpdate) AbstractBaseQuery.deepClone(sqlDesc.getSQLQuery());
            List<String> req = sqlDesc.getRequiredDataProviderIDs();
            List<String> old = sqlDesc.getOldRequiredDataProviderIDs();
            Object[] olddata = row.getRawOldColumnData();
            if (// for safety only, nothing changed
            olddata == null) {
                return null;
            }
            Object[] newdata = row.getRawColumnData();
            for (int i = 0; i < olddata.length; i++) {
                String dataProviderID = req.get(i);
                Column c = table.getColumn(dataProviderID);
                ColumnInfo ci = c.getColumnInfo();
                if (ci != null && ci.isDBManaged()) {
                    mustRequeryRow = true;
                } else {
                    Object modificationValue = c.getModificationValue(fsm.getApplication());
                    if (modificationValue != null) {
                        row.setRawValue(dataProviderID, modificationValue);
                    }
                    if (newdata[i] instanceof BlobMarkerValue) {
                        // because that would be a byte[]
                        continue;
                    }
                    if (!Utils.equalObjects(olddata[i], newdata[i])) {
                        if (sheet.isUsedByAggregate(dataProviderID)) {
                            aggregatesToRemove.addAll(sheet.getAggregateName(dataProviderID));
                        }
                        Object robj = c.getAsRightType(newdata[i]);
                        if (robj == null)
                            robj = ValueFactory.createNullValue(c.getType());
                        ((QueryUpdate) sqlUpdate).addValue(c.queryColumn(((QueryUpdate) sqlUpdate).getTable()), robj);
                        if (changedColumns == null) {
                            changedColumns = new ArrayList<String>(olddata.length - i);
                        }
                        changedColumns.add(c.getName());
                        if (oracleServer && !usesLobs) {
                            int type = c.getType();
                            if (type == Types.BLOB && robj instanceof byte[] && ((byte[]) robj).length > 4000) {
                                usesLobs = true;
                            } else if (type == Types.CLOB && robj instanceof String && ((String) robj).length() > 4000) {
                                usesLobs = true;
                            }
                        }
                    }
                }
            }
            if (// nothing changed after all
            changedColumns == null) {
                // clear the old data now else it will be kept and in a changed state.
                row.flagExistInDB();
                return null;
            }
            // add PK
            Object[] pkValues = new Object[old.size()];
            for (int j = 0; j < old.size(); j++) {
                String dataProviderID = old.get(j);
                pkValues[j] = row.getOldRequiredValue(dataProviderID);
            }
            // TODO: check for success
            AbstractBaseQuery.setPlaceholderValue(sqlUpdate, new TablePlaceholderKey(((QueryUpdate) sqlUpdate).getTable(), SQLGenerator.PLACEHOLDER_PRIMARY_KEY), pkValues);
        } else {
            List<Object> argsArray = new ArrayList<Object>();
            statement_action = ISQLActionTypes.INSERT_ACTION;
            sqlDesc = sheet.getSQLDescription(SQLSheet.INSERT);
            sqlUpdate = (ISQLUpdate) AbstractBaseQuery.deepClone(sqlDesc.getSQLQuery());
            List<String> req = sqlDesc.getRequiredDataProviderIDs();
            if (Debug.tracing())
                Debug.trace(sqlUpdate.toString());
            for (int i = 0; i < req.size(); i++) {
                String dataProviderID = req.get(i);
                if (sheet.isUsedByAggregate(dataProviderID)) {
                    aggregatesToRemove.addAll(sheet.getAggregateName(dataProviderID));
                }
                Column c = table.getColumn(dataProviderID);
                QueryColumn queryColumn = c.queryColumn(((QueryInsert) sqlUpdate).getTable());
                ColumnInfo ci = c.getColumnInfo();
                if (c.isDBIdentity()) {
                    dbPKReturnValues.add(c);
                    argsArray.add(row.getDbIdentValue());
                } else if (ci != null && ci.isDBManaged()) {
                    mustRequeryRow = true;
                } else {
                    int columnIndex = getSQLSheet().getColumnIndex(dataProviderID);
                    // HACK: DIRTY way, should use some kind of identifier preferably
                    if (c.getDatabaseDefaultValue() != null && row.getRawValue(columnIndex, false) == null && c.getRowIdentType() == IBaseColumn.NORMAL_COLUMN) {
                        // The database has a default value, and the value is null, and this is an insert...
                        // Remove the column from the query entirely and make sure the default value is requeried from the db.
                        mustRequeryRow = true;
                        ((QueryInsert) sqlUpdate).removeColumn(queryColumn);
                    } else {
                        Object robj = c.getAsRightType(row.getRawValue(columnIndex, false));
                        if (robj == null)
                            robj = ValueFactory.createNullValue(c.getType());
                        argsArray.add(robj);
                        if (oracleServer && !usesLobs) {
                            int type = c.getType();
                            if (type == Types.BLOB && robj instanceof byte[] && ((byte[]) robj).length > 4000) {
                                usesLobs = true;
                            } else if (type == Types.CLOB && robj instanceof String && ((String) robj).length() > 4000) {
                                usesLobs = true;
                            }
                        }
                    }
                }
            }
            AbstractBaseQuery.setPlaceholderValue(sqlUpdate, new TablePlaceholderKey(((QueryInsert) sqlUpdate).getTable(), SQLGenerator.PLACEHOLDER_INSERT_KEY), argsArray.toArray());
        }
        Object[] pk = row.getPK();
        IDataSet pks = new BufferedDataSet();
        pks.addRow(pk);
        String tid = null;
        GlobalTransaction gt = fsm.getGlobalTransaction();
        if (gt != null) {
            tid = gt.getTransactionID(sheet.getServerName());
        }
        QuerySelect requerySelect = null;
        if (mustRequeryRow) {
            requerySelect = (QuerySelect) AbstractBaseQuery.deepClone(sheet.getSQL(SQLSheet.SELECT));
            if (!requerySelect.setPlaceholderValue(new TablePlaceholderKey(requerySelect.getTable(), SQLGenerator.PLACEHOLDER_PRIMARY_KEY), pk)) {
                Debug.error(new RuntimeException(// $NON-NLS-1$
                "Could not set placeholder " + new TablePlaceholderKey(requerySelect.getTable(), SQLGenerator.PLACEHOLDER_PRIMARY_KEY) + " in query " + requerySelect + // $NON-NLS-1$//$NON-NLS-2$
                "-- continuing"));
            }
        }
        SQLStatement statement = new SQLStatement(statement_action, sheet.getServerName(), table.getName(), pks, tid, sqlUpdate, fsm.getTableFilterParams(sheet.getServerName(), sqlUpdate), requerySelect);
        // check that the row is updated (skip check for insert)
        if (doesExistInDB)
            statement.setExpectedUpdateCount(1);
        if (changedColumns != null) {
            statement.setChangedColumns(changedColumns.toArray(new String[changedColumns.size()]));
        }
        statement.setOracleFixTrackingData(usesLobs && !tracking);
        statement.setIdentityColumn(dbPKReturnValues.size() == 0 ? null : dbPKReturnValues.get(0));
        if (tracking || usesLobs) {
            statement.setTrackingData(sheet.getColumnNames(), row.getRawOldColumnData() != null ? new Object[][] { row.getRawOldColumnData() } : null, row.getRawColumnData() != null ? new Object[][] { row.getRawColumnData() } : null, fsm.getApplication().getUserUID(), fsm.getTrackingInfo(), fsm.getApplication().getClientID());
        }
        return new RowUpdateInfo(row, statement, dbPKReturnValues, aggregatesToRemove);
    } catch (RemoteException e) {
        throw new RepositoryException(e);
    }
}