Examples with RowFactory org.h2.result.RowFactory used on opensource projects

Example 1 with RowFactory

use of org.h2.result.RowFactory in project ignite by apache.

the class GridH2Table method doUpdate.

/**
     * For testing only.
     *
     * @param row Row.
     * @param del If given row should be deleted from table.
     * @return {@code True} if operation succeeded.
     * @throws IgniteCheckedException If failed.
     */
@SuppressWarnings("LockAcquiredButNotSafelyReleased")
boolean doUpdate(final GridH2Row row, boolean del) throws IgniteCheckedException {
    // Here we assume that each key can't be updated concurrently and case when different indexes
    // getting updated from different threads with different rows with the same key is impossible.
    GridUnsafeMemory mem = desc == null ? null : desc.memory();
    lock(false);
    if (mem != null)
        desc.guard().begin();
    try {
        ensureNotDestroyed();
        GridH2IndexBase pk = pk();
        if (!del) {
            assert rowFactory == null || row.link != 0 : row;
            // Put to PK.
            GridH2Row old = pk.put(row);
            if (old == null)
                size.increment();
            int len = idxs.size();
            int i = pkIndexPos;
            // Start from 3 because 0 - Scan (don't need to update), 1 - PK hash (already updated), 2 - PK (already updated).
            while (++i < len) {
                if (!(idxs.get(i) instanceof GridH2IndexBase))
                    continue;
                GridH2IndexBase idx = index(i);
                addToIndex(idx, pk, row, old, false);
            }
            for (GridH2IndexBase idx : tmpIdxs.values()) addToIndex(idx, pk, row, old, true);
        } else {
            //  index(1) is PK, get full row from there (search row here contains only key but no other columns).
            GridH2Row old = pk.remove(row);
            if (old != null) {
                // Start from 3 because 0 - Scan (don't need to update), 1 - PK hash (already updated), 2 - PK (already updated).
                for (int i = pkIndexPos + 1, len = idxs.size(); i < len; i++) {
                    if (!(idxs.get(i) instanceof GridH2IndexBase))
                        continue;
                    Row res = index(i).remove(old);
                    assert eq(pk, res, old) : "\n" + old + "\n" + res + "\n" + i + " -> " + index(i).getName();
                }
                for (GridH2IndexBase idx : tmpIdxs.values()) idx.remove(old);
                size.decrement();
            } else
                return false;
        }
        // The snapshot is not actual after update.
        if (actualSnapshot != null)
            actualSnapshot.set(pk.segmentForRow(row), null);
        return true;
    } finally {
        unlock(false);
        if (mem != null)
            desc.guard().end();
    }
}

Example 2 with RowFactory

use of org.h2.result.RowFactory in project h2database by h2database.

the class Set method update.

@Override
public int update() {
    Database database = session.getDatabase();
    String name = SetTypes.getTypeName(type);
    switch(type) {
        case SetTypes.ALLOW_LITERALS:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                if (value < 0 || value > 2) {
                    throw DbException.getInvalidValueException("ALLOW_LITERALS", getIntValue());
                }
                database.setAllowLiterals(value);
                addOrUpdateSetting(name, null, value);
                break;
            }
        case SetTypes.CACHE_SIZE:
            if (getIntValue() < 0) {
                throw DbException.getInvalidValueException("CACHE_SIZE", getIntValue());
            }
            session.getUser().checkAdmin();
            database.setCacheSize(getIntValue());
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.CLUSTER:
            {
                if (Constants.CLUSTERING_ENABLED.equals(stringValue)) {
                    // ignore, as the cluster setting is checked later
                    break;
                }
                String value = StringUtils.quoteStringSQL(stringValue);
                if (!value.equals(database.getCluster())) {
                    if (!value.equals(Constants.CLUSTERING_DISABLED)) {
                        // anybody can disable the cluster
                        // (if he can't access a cluster node)
                        session.getUser().checkAdmin();
                    }
                    database.setCluster(value);
                    // use the system session so that the current transaction
                    // (if any) is not committed
                    Session sysSession = database.getSystemSession();
                    synchronized (sysSession) {
                        synchronized (database) {
                            addOrUpdateSetting(sysSession, name, value, 0);
                            sysSession.commit(true);
                        }
                    }
                }
                break;
            }
        case SetTypes.COLLATION:
            {
                session.getUser().checkAdmin();
                final boolean binaryUnsigned = database.getCompareMode().isBinaryUnsigned();
                CompareMode compareMode;
                StringBuilder buff = new StringBuilder(stringValue);
                if (stringValue.equals(CompareMode.OFF)) {
                    compareMode = CompareMode.getInstance(null, 0, binaryUnsigned);
                } else {
                    int strength = getIntValue();
                    buff.append(" STRENGTH ");
                    if (strength == Collator.IDENTICAL) {
                        buff.append("IDENTICAL");
                    } else if (strength == Collator.PRIMARY) {
                        buff.append("PRIMARY");
                    } else if (strength == Collator.SECONDARY) {
                        buff.append("SECONDARY");
                    } else if (strength == Collator.TERTIARY) {
                        buff.append("TERTIARY");
                    }
                    compareMode = CompareMode.getInstance(stringValue, strength, binaryUnsigned);
                }
                CompareMode old = database.getCompareMode();
                if (old.equals(compareMode)) {
                    break;
                }
                Table table = database.getFirstUserTable();
                if (table != null) {
                    throw DbException.get(ErrorCode.COLLATION_CHANGE_WITH_DATA_TABLE_1, table.getSQL());
                }
                addOrUpdateSetting(name, buff.toString(), 0);
                database.setCompareMode(compareMode);
                break;
            }
        case SetTypes.BINARY_COLLATION:
            {
                session.getUser().checkAdmin();
                Table table = database.getFirstUserTable();
                if (table != null) {
                    throw DbException.get(ErrorCode.COLLATION_CHANGE_WITH_DATA_TABLE_1, table.getSQL());
                }
                CompareMode currentMode = database.getCompareMode();
                CompareMode newMode;
                if (stringValue.equals(CompareMode.SIGNED)) {
                    newMode = CompareMode.getInstance(currentMode.getName(), currentMode.getStrength(), false);
                } else if (stringValue.equals(CompareMode.UNSIGNED)) {
                    newMode = CompareMode.getInstance(currentMode.getName(), currentMode.getStrength(), true);
                } else {
                    throw DbException.getInvalidValueException("BINARY_COLLATION", stringValue);
                }
                addOrUpdateSetting(name, stringValue, 0);
                database.setCompareMode(newMode);
                break;
            }
        case SetTypes.COMPRESS_LOB:
            {
                session.getUser().checkAdmin();
                int algo = CompressTool.getCompressAlgorithm(stringValue);
                database.setLobCompressionAlgorithm(algo == Compressor.NO ? null : stringValue);
                addOrUpdateSetting(name, stringValue, 0);
                break;
            }
        case SetTypes.CREATE_BUILD:
            {
                session.getUser().checkAdmin();
                if (database.isStarting()) {
                    // just ignore the command if not starting
                    // this avoids problems when running recovery scripts
                    int value = getIntValue();
                    addOrUpdateSetting(name, null, value);
                }
                break;
            }
        case SetTypes.DATABASE_EVENT_LISTENER:
            {
                session.getUser().checkAdmin();
                database.setEventListenerClass(stringValue);
                break;
            }
        case SetTypes.DB_CLOSE_DELAY:
            {
                int x = getIntValue();
                if (x == -1) {
                // -1 is a special value for in-memory databases,
                // which means "keep the DB alive and use the same
                // DB for all connections"
                } else if (x < 0) {
                    throw DbException.getInvalidValueException("DB_CLOSE_DELAY", x);
                }
                session.getUser().checkAdmin();
                database.setCloseDelay(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.DEFAULT_LOCK_TIMEOUT:
            if (getIntValue() < 0) {
                throw DbException.getInvalidValueException("DEFAULT_LOCK_TIMEOUT", getIntValue());
            }
            session.getUser().checkAdmin();
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.DEFAULT_TABLE_TYPE:
            session.getUser().checkAdmin();
            database.setDefaultTableType(getIntValue());
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.EXCLUSIVE:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                switch(value) {
                    case 0:
                        database.setExclusiveSession(null, false);
                        break;
                    case 1:
                        database.setExclusiveSession(session, false);
                        break;
                    case 2:
                        database.setExclusiveSession(session, true);
                        break;
                    default:
                        throw DbException.getInvalidValueException("EXCLUSIVE", value);
                }
                break;
            }
        case SetTypes.JAVA_OBJECT_SERIALIZER:
            {
                session.getUser().checkAdmin();
                Table table = database.getFirstUserTable();
                if (table != null) {
                    throw DbException.get(ErrorCode.JAVA_OBJECT_SERIALIZER_CHANGE_WITH_DATA_TABLE, table.getSQL());
                }
                database.setJavaObjectSerializerName(stringValue);
                addOrUpdateSetting(name, stringValue, 0);
                break;
            }
        case SetTypes.IGNORECASE:
            session.getUser().checkAdmin();
            database.setIgnoreCase(getIntValue() == 1);
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.LOCK_MODE:
            session.getUser().checkAdmin();
            database.setLockMode(getIntValue());
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.LOCK_TIMEOUT:
            if (getIntValue() < 0) {
                throw DbException.getInvalidValueException("LOCK_TIMEOUT", getIntValue());
            }
            session.setLockTimeout(getIntValue());
            break;
        case SetTypes.LOG:
            {
                int value = getIntValue();
                if (database.isPersistent() && value != database.getLogMode()) {
                    session.getUser().checkAdmin();
                    database.setLogMode(value);
                }
                break;
            }
        case SetTypes.MAX_LENGTH_INPLACE_LOB:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("MAX_LENGTH_INPLACE_LOB", getIntValue());
                }
                session.getUser().checkAdmin();
                database.setMaxLengthInplaceLob(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.MAX_LOG_SIZE:
            if (getIntValue() < 0) {
                throw DbException.getInvalidValueException("MAX_LOG_SIZE", getIntValue());
            }
            session.getUser().checkAdmin();
            database.setMaxLogSize((long) getIntValue() * 1024 * 1024);
            addOrUpdateSetting(name, null, getIntValue());
            break;
        case SetTypes.MAX_MEMORY_ROWS:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("MAX_MEMORY_ROWS", getIntValue());
                }
                session.getUser().checkAdmin();
                database.setMaxMemoryRows(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.MAX_MEMORY_UNDO:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("MAX_MEMORY_UNDO", getIntValue());
                }
                session.getUser().checkAdmin();
                database.setMaxMemoryUndo(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.MAX_OPERATION_MEMORY:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("MAX_OPERATION_MEMORY", getIntValue());
                }
                session.getUser().checkAdmin();
                int value = getIntValue();
                database.setMaxOperationMemory(value);
                break;
            }
        case SetTypes.MODE:
            Mode mode = Mode.getInstance(stringValue);
            if (mode == null) {
                throw DbException.get(ErrorCode.UNKNOWN_MODE_1, stringValue);
            }
            if (database.getMode() != mode) {
                session.getUser().checkAdmin();
                database.setMode(mode);
                session.getColumnNamerConfiguration().configure(mode.getEnum());
            }
            break;
        case SetTypes.MULTI_THREADED:
            {
                session.getUser().checkAdmin();
                database.setMultiThreaded(getIntValue() == 1);
                break;
            }
        case SetTypes.MVCC:
            {
                if (database.isMultiVersion() != (getIntValue() == 1)) {
                    throw DbException.get(ErrorCode.CANNOT_CHANGE_SETTING_WHEN_OPEN_1, "MVCC");
                }
                break;
            }
        case SetTypes.OPTIMIZE_REUSE_RESULTS:
            {
                session.getUser().checkAdmin();
                database.setOptimizeReuseResults(getIntValue() != 0);
                break;
            }
        case SetTypes.QUERY_TIMEOUT:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("QUERY_TIMEOUT", getIntValue());
                }
                int value = getIntValue();
                session.setQueryTimeout(value);
                break;
            }
        case SetTypes.REDO_LOG_BINARY:
            {
                int value = getIntValue();
                session.setRedoLogBinary(value == 1);
                break;
            }
        case SetTypes.REFERENTIAL_INTEGRITY:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                if (value < 0 || value > 1) {
                    throw DbException.getInvalidValueException("REFERENTIAL_INTEGRITY", getIntValue());
                }
                database.setReferentialIntegrity(value == 1);
                break;
            }
        case SetTypes.QUERY_STATISTICS:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                if (value < 0 || value > 1) {
                    throw DbException.getInvalidValueException("QUERY_STATISTICS", getIntValue());
                }
                database.setQueryStatistics(value == 1);
                break;
            }
        case SetTypes.QUERY_STATISTICS_MAX_ENTRIES:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                if (value < 1) {
                    throw DbException.getInvalidValueException("QUERY_STATISTICS_MAX_ENTRIES", getIntValue());
                }
                database.setQueryStatisticsMaxEntries(value);
                break;
            }
        case SetTypes.SCHEMA:
            {
                Schema schema = database.getSchema(stringValue);
                session.setCurrentSchema(schema);
                break;
            }
        case SetTypes.SCHEMA_SEARCH_PATH:
            {
                session.setSchemaSearchPath(stringValueList);
                break;
            }
        case SetTypes.TRACE_LEVEL_FILE:
            session.getUser().checkAdmin();
            if (getCurrentObjectId() == 0) {
                // don't set the property when opening the database
                // this is for compatibility with older versions, because
                // this setting was persistent
                database.getTraceSystem().setLevelFile(getIntValue());
            }
            break;
        case SetTypes.TRACE_LEVEL_SYSTEM_OUT:
            session.getUser().checkAdmin();
            if (getCurrentObjectId() == 0) {
                // don't set the property when opening the database
                // this is for compatibility with older versions, because
                // this setting was persistent
                database.getTraceSystem().setLevelSystemOut(getIntValue());
            }
            break;
        case SetTypes.TRACE_MAX_FILE_SIZE:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("TRACE_MAX_FILE_SIZE", getIntValue());
                }
                session.getUser().checkAdmin();
                int size = getIntValue() * 1024 * 1024;
                database.getTraceSystem().setMaxFileSize(size);
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.THROTTLE:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("THROTTLE", getIntValue());
                }
                session.setThrottle(getIntValue());
                break;
            }
        case SetTypes.UNDO_LOG:
            {
                int value = getIntValue();
                if (value < 0 || value > 1) {
                    throw DbException.getInvalidValueException("UNDO_LOG", getIntValue());
                }
                session.setUndoLogEnabled(value == 1);
                break;
            }
        case SetTypes.VARIABLE:
            {
                Expression expr = expression.optimize(session);
                session.setVariable(stringValue, expr.getValue(session));
                break;
            }
        case SetTypes.WRITE_DELAY:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("WRITE_DELAY", getIntValue());
                }
                session.getUser().checkAdmin();
                database.setWriteDelay(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.RETENTION_TIME:
            {
                if (getIntValue() < 0) {
                    throw DbException.getInvalidValueException("RETENTION_TIME", getIntValue());
                }
                session.getUser().checkAdmin();
                database.setRetentionTime(getIntValue());
                addOrUpdateSetting(name, null, getIntValue());
                break;
            }
        case SetTypes.ROW_FACTORY:
            {
                session.getUser().checkAdmin();
                String rowFactoryName = expression.getColumnName();
                Class<RowFactory> rowFactoryClass = JdbcUtils.loadUserClass(rowFactoryName);
                RowFactory rowFactory;
                try {
                    rowFactory = rowFactoryClass.newInstance();
                } catch (Exception e) {
                    throw DbException.convert(e);
                }
                database.setRowFactory(rowFactory);
                break;
            }
        case SetTypes.BATCH_JOINS:
            {
                int value = getIntValue();
                if (value != 0 && value != 1) {
                    throw DbException.getInvalidValueException("BATCH_JOINS", getIntValue());
                }
                session.setJoinBatchEnabled(value == 1);
                break;
            }
        case SetTypes.FORCE_JOIN_ORDER:
            {
                int value = getIntValue();
                if (value != 0 && value != 1) {
                    throw DbException.getInvalidValueException("FORCE_JOIN_ORDER", value);
                }
                session.setForceJoinOrder(value == 1);
                break;
            }
        case SetTypes.LAZY_QUERY_EXECUTION:
            {
                int value = getIntValue();
                if (value != 0 && value != 1) {
                    throw DbException.getInvalidValueException("LAZY_QUERY_EXECUTION", value);
                }
                session.setLazyQueryExecution(value == 1);
                break;
            }
        case SetTypes.BUILTIN_ALIAS_OVERRIDE:
            {
                session.getUser().checkAdmin();
                int value = getIntValue();
                if (value != 0 && value != 1) {
                    throw DbException.getInvalidValueException("BUILTIN_ALIAS_OVERRIDE", value);
                }
                database.setAllowBuiltinAliasOverride(value == 1);
                break;
            }
        case SetTypes.COLUMN_NAME_RULES:
            {
                session.getUser().checkAdmin();
                session.getColumnNamerConfiguration().configure(expression.getColumnName());
                break;
            }
        default:
            DbException.throwInternalError("type=" + type);
    }
    // the meta data information has changed
    database.getNextModificationDataId();
    // query caches might be affected as well, for example
    // when changing the compatibility mode
    database.getNextModificationMetaId();
    return 0;
}

Example 3 with RowFactory

use of org.h2.result.RowFactory in project h2database by h2database.

the class PageLog method readRow.

/**
 * Read a row from an input stream.
 *
 * @param rowFactory the row factory
 * @param in the input stream
 * @param data a temporary buffer
 * @return the row
 */
public static Row readRow(RowFactory rowFactory, DataReader in, Data data) throws IOException {
    long key = in.readVarLong();
    int len = in.readVarInt();
    data.reset();
    data.checkCapacity(len);
    in.readFully(data.getBytes(), len);
    int columnCount = data.readVarInt();
    Value[] values = new Value[columnCount];
    for (int i = 0; i < columnCount; i++) {
        values[i] = data.readValue();
    }
    Row row = rowFactory.createRow(values, Row.MEMORY_CALCULATE);
    row.setKey(key);
    return row;
}