Examples of org.apache.phoenix.expression.Expression.evaluate()

Class org.apache.phoenix.expression.Expression

Examples of org.apache.phoenix.expression.Expression.evaluate()

org.apache.phoenix.expression.Expression.evaluate()
Access the value by setting a pointer to it (as opposed to making a copy of it which can be expensive) @param tuple Single row result during scan iteration @param ptr Pointer to byte value being accessed @return true if the expression could be evaluated (i.e. ptr was set)and false otherwise

            return false;
        }
        String replaceStr;
        if (hasReplaceStr) {
            Expression replaceStrExpression = this.getReplaceStrExpression();
            if (!replaceStrExpression.evaluate(tuple, ptr)) {
                return false;
            }
            replaceStr = (String)PDataType.VARCHAR.toObject(ptr, replaceStrExpression.getColumnModifier());
        } else {
            replaceStr = "";

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    }


    @Override
    public final Object getValue(Tuple tuple, PDataType type, ImmutableBytesWritable ptr) throws SQLException {
        Expression expression = getExpression();
        if (!expression.evaluate(tuple, ptr)) {
            return null;
        }
        if (ptr.getLength() == 0) {
            return null;
        }

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    @Override
    protected int compare(Tuple t1, Tuple t2) {
        for (int i = 0; i < orderByColumns.size(); i++) {
            OrderByExpression order = orderByColumns.get(i);
            Expression orderExpr = order.getExpression();
            boolean isNull1 = !orderExpr.evaluate(t1, ptr1) || ptr1.getLength() == 0;
            boolean isNull2 = !orderExpr.evaluate(t2, ptr2) || ptr2.getLength() == 0;
            if (isNull1 && isNull2) {
                continue;
            } else if (isNull1) {
                return order.isNullsLast() ? 1 : -1;

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    protected int compare(Tuple t1, Tuple t2) {
        for (int i = 0; i < orderByColumns.size(); i++) {
            OrderByExpression order = orderByColumns.get(i);
            Expression orderExpr = order.getExpression();
            boolean isNull1 = !orderExpr.evaluate(t1, ptr1) || ptr1.getLength() == 0;
            boolean isNull2 = !orderExpr.evaluate(t2, ptr2) || ptr2.getLength() == 0;
            if (isNull1 && isNull2) {
                continue;
            } else if (isNull1) {
                return order.isNullsLast() ? 1 : -1;
            } else if (isNull2) {

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                            Arrays.fill(values, null);
                            int i = 0;
                            List<PColumn> projectedColumns = projectedTable.getColumns();
                            for (; i < projectedTable.getPKColumns().size(); i++) {
                                Expression expression = selectExpressions.get(i);
                                if (expression.evaluate(result, ptr)) {
                                    values[i] = ptr.copyBytes();
                                    // If SortOrder from expression in SELECT doesn't match the
                                    // column being projected into then invert the bits.
                                    if (expression.getSortOrder() != projectedColumns.get(i).getSortOrder()) {
                                        SortOrder.invert(values[i], 0, values[i], 0, values[i].length);

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                            }
                            projectedTable.newKey(ptr, values);
                            PRow row = projectedTable.newRow(kvBuilder, ts, ptr);
                            for (; i < projectedColumns.size(); i++) {
                                Expression expression = selectExpressions.get(i);
                                if (expression.evaluate(result, ptr)) {
                                    PColumn column = projectedColumns.get(i);
                                    Object value = expression.getDataType().toObject(ptr, column.getSortOrder());
                                    // We are guaranteed that the two column will have the same type.
                                    if (!column.getDataType().isSizeCompatible(ptr, value, column.getDataType(),
                                            expression.getMaxLength(),  expression.getScale(),

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            if (postFilter != null) {
                for (Iterator<Tuple> iter = resultQueue.iterator(); iter.hasNext();) {
                    Tuple t = iter.next();
                    ImmutableBytesWritable tempPtr = new ImmutableBytesWritable();
                    try {
                        if (!postFilter.evaluate(t, tempPtr)) {
                            iter.remove();
                            continue;
                        }
                    } catch (IllegalDataException e) {
                        iter.remove();

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            for (int i = 0; i < targetColumns.size(); i++) {
                PColumn targetColumn = targetColumns.get(i);
                if (overlapViewColumns.contains(targetColumn)) {
                    Expression source = projector.getColumnProjector(i).getExpression();
                    if (source.isStateless()) {
                        source.evaluate(null, ptr);
                        if (Bytes.compareTo(ptr.get(), ptr.getOffset(), ptr.getLength(), targetColumn.getViewConstant(), 0, targetColumn.getViewConstant().length-1) == 0) {
                            continue;
                        }
                    }
                    throw new SQLExceptionInfo.Builder(

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            for (int i = 0; i < targetColumns.size(); i++) {
                PColumn targetColumn = targetColumns.get(i);
                if (overlapViewColumns.contains(targetColumn)) {
                    Expression source = projector.getColumnProjector(i).getExpression();
                    if (source.isStateless()) {
                        source.evaluate(null, ptr);
                        if (Bytes.compareTo(ptr.get(), ptr.getOffset(), ptr.getLength(), targetColumn.getViewConstant(), 0, targetColumn.getViewConstant().length-1) == 0) {
                            continue;
                        }
                    }
                    throw new SQLExceptionInfo.Builder(

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     * @throws IOException
     */
    public static ImmutableBytesPtr getConcatenatedValue(Tuple result, List<Expression> expressions) throws IOException {
        ImmutableBytesPtr value = new ImmutableBytesPtr(ByteUtil.EMPTY_BYTE_ARRAY);
        Expression expression = expressions.get(0);
        boolean evaluated = expression.evaluate(result, value);
        
        if (expressions.size() == 1) {
            if (!evaluated) {
                value.set(ByteUtil.EMPTY_BYTE_ARRAY);
            }

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