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

        
        ArrayConstructorExpression arrayExpression = new ArrayConstructorExpression(children, arrayElemDataType);
        if (ExpressionUtil.isConstant(arrayExpression)) {
            for (int i = 0; i < children.size(); i++) {
                Expression child = children.get(i);
                child.evaluate(null, ptr);
                Object value = arrayElemDataType.toObject(ptr, child.getDataType(), child.getSortOrder());
                elements[i] = LiteralExpression.newConstant(value, child.getDataType(), child.isDeterministic()).getValue();
            }
            Object value = PArrayDataType.instantiatePhoenixArray(arrayElemDataType, elements);
            return LiteralExpression.newConstant(value,

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

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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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                    if (!expression.getDataType().isFixedWidth()) {
                        output.write(QueryConstants.SEPARATOR_BYTE);
                    }
                    expression = expressions.get(i);
                    // TODO: should we track trailing null values and omit the separator bytes?
                    if (expression.evaluate(result, value)) {
                        output.write(value.get(), value.getOffset(), value.getLength());
                    } else if (i < expressions.size()-1 && expression.getDataType().isFixedWidth()) {
                        // This should never happen, because any non terminating nullable fixed width type (i.e. INT or LONG) is
                        // converted to a variable length type (i.e. DECIMAL) to allow an empty byte array to represent null.
                        throw new DoNotRetryIOException("Non terminating null value found for fixed width expression (" + expression + ") in row: " + result);

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            }
        }
        Expression expression = new LikeExpression(children);
        if (ExpressionUtil.isConstant(expression)) {
            ImmutableBytesWritable ptr = context.getTempPtr();
            if (!expression.evaluate(null, ptr)) {
                return LiteralExpression.newConstant(null, expression.isDeterministic());
            } else {
                return LiteralExpression.newConstant(Boolean.TRUE.equals(PDataType.BOOLEAN.toObject(ptr)) ^ node.isNegate(), expression.isDeterministic());
            }
        }

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        ExpressionCompiler expressionCompiler = new ExpressionCompiler(context);
        for (int i = 0; i < splits.length; i++) {
            ParseNode node = splitNodes.get(i);
            if (node.isStateless()) {
                Expression expression = node.accept(expressionCompiler);
                if (expression.evaluate(null, ptr)) {;
                    splits[i] = ByteUtil.copyKeyBytesIfNecessary(ptr);
                    continue;
                }
            }
            throw new SQLExceptionInfo.Builder(SQLExceptionCode.SPLIT_POINT_NOT_CONSTANT)

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    }


    @Override
    public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
        Expression expression = getExpression();
        if (!expression.evaluate(tuple, ptr) || ptr.getLength() == 0) {
            return false;
        }
        PDataType type = expression.getDataType();
        String dateStr = (String)type.toObject(ptr, expression.getSortOrder());
        try {

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    }
    
    @Override
    public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
        Expression child = children.get(0);
        if (!child.evaluate(tuple, ptr)) {
            return false;
        }
        if (ptr.getLength() == 0) {
            return true;
        }

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        if (sourceStr == null) {
            return false;
        }


        Expression offsetExpression = getOffsetExpression();
        if (!offsetExpression.evaluate(tuple, ptr)) {
            return false;
        }
        int offset = offsetExpression.getDataType().getCodec().decodeInt(ptr, offsetExpression.getSortOrder());


        int strlen = sourceStr.length();

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  }


  @Override
  public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
    Expression arrayExpr = children.get(0);
    if (!arrayExpr.evaluate(tuple, ptr)) {
      return false;
    } else if (ptr.getLength() == 0) {
      return true;
    }
    PDataType baseType = PDataType.fromTypeId(children.get(0).getDataType()

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