Package org.h2.value

Examples of org.h2.value.ValueArray

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    public Value[] next() {
        if (!resultCursor.next()) {
            return null;
        }
        Row row = resultCursor.get();
        ValueArray data = (ValueArray) row.getValue(0);
        return data.getList();
    }
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    public void reset() {
        resultCursor = index.find(session, null, null);
    }

    private static Row convertToRow(Value[] values) {
        ValueArray data = ValueArray.get(values);
        return new Row(new Value[]{data}, Row.MEMORY_CALCULATE);
    }
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    private void queryGroup(int columnCount, LocalResult result) {
        ValueHashMap<HashMap<Expression, Object>> groups = ValueHashMap.newInstance();
        int rowNumber = 0;
        setCurrentRowNumber(0);
        ValueArray defaultGroup = ValueArray.get(new Value[0]);
        while (topTableFilter.next()) {
            setCurrentRowNumber(rowNumber + 1);
            if (condition == null || Boolean.TRUE.equals(condition.getBooleanValue(session))) {
                Value key;
                rowNumber++;
                if (groupIndex == null) {
                    key = defaultGroup;
                } else {
                    Value[] keyValues = new Value[groupIndex.length];
                    // update group
                    for (int i = 0; i < groupIndex.length; i++) {
                        int idx = groupIndex[i];
                        Expression expr = expressions.get(idx);
                        keyValues[i] = expr.getValue(session);
                    }
                    key = ValueArray.get(keyValues);
                }
                HashMap<Expression, Object> values = groups.get(key);
                if (values == null) {
                    values = new HashMap<Expression, Object>();
                    groups.put(key, values);
                }
                currentGroup = values;
                currentGroupRowId++;
                int len = columnCount;
                for (int i = 0; i < len; i++) {
                    if (groupByExpression == null || !groupByExpression[i]) {
                        Expression expr = expressions.get(i);
                        expr.updateAggregate(session);
                    }
                }
                if (sampleSize > 0 && rowNumber >= sampleSize) {
                    break;
                }
            }
        }
        if (groupIndex == null && groups.size() == 0) {
            groups.put(defaultGroup, new HashMap<Expression, Object>());
        }
        ArrayList<Value> keys = groups.keys();
        for (Value v : keys) {
            ValueArray key = (ValueArray) v;
            currentGroup = groups.get(key);
            Value[] keyValues = key.getList();
            Value[] row = new Value[columnCount];
            for (int j = 0; groupIndex != null && j < groupIndex.length; j++) {
                row[groupIndex[j]] = keyValues[j];
            }
            for (int j = 0; j < columnCount; j++) {
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            for (int i = 0; i < len; i++) {
                Value v = argList[i].getValue(session);
                if (v == ValueNull.INSTANCE) {
                    list[i] = new Value[0];
                } else {
                    ValueArray array = (ValueArray) v.convertTo(Value.ARRAY);
                    Value[] l = array.getList();
                    list[i] = l;
                    rows = Math.max(rows, l.length);
                }
            }
            for (int row = 0; row < rows; row++) {
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    public void removeDistinct(Value[] values) {
        if (!distinct) {
            DbException.throwInternalError();
        }
        if (distinctRows != null) {
            ValueArray array = ValueArray.get(values);
            distinctRows.remove(array);
            rowCount = distinctRows.size();
        } else {
            rowCount = disk.removeRow(values);
        }
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    public boolean containsDistinct(Value[] values) {
        if (!distinct) {
            DbException.throwInternalError();
        }
        if (distinctRows != null) {
            ValueArray array = ValueArray.get(values);
            return distinctRows.get(array) != null;
        }
        return disk.contains(values);
    }
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     * @param values the row to add
     */
    public void addRow(Value[] values) {
        if (distinct) {
            if (distinctRows != null) {
                ValueArray array = ValueArray.get(values);
                distinctRows.put(array, values);
                rowCount = distinctRows.size();
                if (rowCount > SysProperties.MAX_MEMORY_ROWS_DISTINCT && session.getDatabase().isPersistent()) {
                    disk = new ResultTempTable(session, sort);
                    disk.addRows(distinctRows.values());
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    public Value[] next() {
        if (!resultCursor.next()) {
            return null;
        }
        Row row = resultCursor.get();
        ValueArray data = (ValueArray) row.getValue(0);
        return data.getList();
    }
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    public void reset() {
        resultCursor = index.find(session, null, null);
    }

    private Row convertToRow(Value[] values) {
        ValueArray data = ValueArray.get(values);
        return new Row(new Value[]{data}, Row.MEMORY_CALCULATE);
    }
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    private void queryGroup(int columnCount, LocalResult result) {
        ValueHashMap<HashMap<Expression, Object>> groups = ValueHashMap.newInstance();
        int rowNumber = 0;
        setCurrentRowNumber(0);
        ValueArray defaultGroup = ValueArray.get(new Value[0]);
        while (topTableFilter.next()) {
            setCurrentRowNumber(rowNumber + 1);
            if (condition == null || Boolean.TRUE.equals(condition.getBooleanValue(session))) {
                Value key;
                rowNumber++;
                if (groupIndex == null) {
                    key = defaultGroup;
                } else {
                    Value[] keyValues = new Value[groupIndex.length];
                    // update group
                    for (int i = 0; i < groupIndex.length; i++) {
                        int idx = groupIndex[i];
                        Expression expr = expressions.get(idx);
                        keyValues[i] = expr.getValue(session);
                    }
                    key = ValueArray.get(keyValues);
                }
                HashMap<Expression, Object> values = groups.get(key);
                if (values == null) {
                    values = new HashMap<Expression, Object>();
                    groups.put(key, values);
                }
                currentGroup = values;
                currentGroupRowId++;
                int len = columnCount;
                for (int i = 0; i < len; i++) {
                    if (groupByExpression == null || !groupByExpression[i]) {
                        Expression expr = expressions.get(i);
                        expr.updateAggregate(session);
                    }
                }
                if (sampleSize > 0 && rowNumber >= sampleSize) {
                    break;
                }
            }
        }
        if (groupIndex == null && groups.size() == 0) {
            groups.put(defaultGroup, new HashMap<Expression, Object>());
        }
        ArrayList<Value> keys = groups.keys();
        for (Value v : keys) {
            ValueArray key = (ValueArray) v;
            currentGroup = groups.get(key);
            Value[] keyValues = key.getList();
            Value[] row = new Value[columnCount];
            for (int j = 0; groupIndex != null && j < groupIndex.length; j++) {
                row[groupIndex[j]] = keyValues[j];
            }
            for (int j = 0; j < columnCount; j++) {
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