Package org.lealone.value

Examples of org.lealone.value.ValueArray

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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 = external.removeRow(values);
        }
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                if (row.length > visibleColumnCount) {
                    Value[] r2 = new Value[visibleColumnCount];
                    System.arraycopy(row, 0, r2, 0, visibleColumnCount);
                    row = r2;
                }
                ValueArray array = ValueArray.get(row);
                distinctRows.put(array, row);
            }
        }
        ValueArray array = ValueArray.get(values);
        return distinctRows.get(array) != null;
    }
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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();
                Database db = session.getDatabase();
                if (rowCount > db.getSettings().maxMemoryRowsDistinct && db.isPersistent() && !db.isReadOnly()) {
                    external = new ResultTempTable(session, sort);
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        if (distinctRows == null) {
            initDistinctRows();
        }

        ValueArray array = ValueArray.get(values);
        return distinctRows.get(array) != null;
    }
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                if (row.length > visibleColumnCount) {
                    Value[] r2 = new Value[visibleColumnCount];
                    System.arraycopy(row, 0, r2, 0, visibleColumnCount);
                    row = r2;
                }
                ValueArray array = ValueArray.get(row);
                distinctRows.put(array, row);
            }
        }

        return rowCount;
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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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            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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        int columnCount = expressions.size();
        LocalResult result = new LocalResult(session, expressionArray, visibleColumnCount);
        ValueHashMap<HashMap<Expression, Object>> groups = ValueHashMap.newInstance();
        int rowNumber = 0;
        setCurrentRowNumber(0);
        ValueArray defaultGroup = ValueArray.get(new Value[0]);
        topTableFilter.reset();
        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] = topTableFilter.getValue(idx);//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;
            if (topTableFilter.getCurrentSearchRowLength() < len)
                len = topTableFilter.getCurrentSearchRowLength();
            for (int i = 0; i < len; i++) {
                if (groupByExpression == null || !groupByExpression[i]) {
                    Expression expr = expressions.get(i);
                    expr.mergeAggregate(session, topTableFilter.getValue(i));
                }
            }
            if (sampleSize > 0 && rowNumber >= sampleSize) {
                break;
            }
        }
        //}
        if (groupIndex == null && groups.size() == 0) {
            groups.put(defaultGroup, new HashMap<Expression, Object>());
        }
        columnCount = expressions.size();
        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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    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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Related Classes of org.lealone.value.ValueArray

  • org.lealone.command.dml.Select
  • org.lealone.expression.TableFunction
  • org.lealone.result.LocalResult
  • org.lealone.result.ResultTempTable
  • org.lealone.result.SubqueryResult
  • org.lealone.util.StatementBuilder
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