Package org.apache.phoenix.expression

Examples of org.apache.phoenix.expression.LiteralExpression

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            ParseNode node = splitNodes.get(i);
            if (!node.isConstant()) {
                throw new SQLExceptionInfo.Builder(SQLExceptionCode.SPLIT_POINT_NOT_CONSTANT)
                    .setMessage("Node: " + node).build().buildException();
            }
            LiteralExpression expression = (LiteralExpression)node.accept(expressionCompiler);
            splits[i] = expression.getBytes();
        }
        final MetaDataClient client = new MetaDataClient(connection);
       
        return new MutationPlan() {
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            ParseNode node = splitNodes.get(i);
            if (!node.isStateless()) {
                throw new SQLExceptionInfo.Builder(SQLExceptionCode.SPLIT_POINT_NOT_CONSTANT)
                    .setMessage("Node: " + node).build().buildException();
            }
            LiteralExpression expression = (LiteralExpression)node.accept(expressionCompiler);
            splits[i] = expression.getBytes();
        }
        final MetaDataClient client = new MetaDataClient(connection);
       
        return new MutationPlan() {
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    @Override
    public Expression visitLeave(DivideParseNode node, List<Expression> children) throws SQLException {
        for (int i = 1; i < children.size(); i++) { // Compile time check for divide by zero and null
            Expression child = children.get(i);
                if (child.getDataType() != null && child instanceof LiteralExpression) {
                    LiteralExpression literal = (LiteralExpression)child;
                    if (literal.getDataType() == PDataType.DECIMAL) {
                        if (PDataType.DECIMAL.compareTo(literal.getValue(), BigDecimal.ZERO) == 0) {
                            throw new SQLExceptionInfo.Builder(SQLExceptionCode.DIVIDE_BY_ZERO).build().buildException();
                        }
                    } else {
                        if (literal.getDataType().compareTo(literal.getValue(), 0L, PDataType.LONG) == 0) {
                            throw new SQLExceptionInfo.Builder(SQLExceptionCode.DIVIDE_BY_ZERO).build().buildException();
                        }
                    }
                }
        }
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    }

    @Override
    public OrderPreserving preservesOrder() {
        if (isOffsetConstant) {
            LiteralExpression literal = (LiteralExpression) getOffsetExpression();
            Number offsetNumber = (Number) literal.getValue();
            if (offsetNumber != null) {
                int offset = offsetNumber.intValue();
                if ((offset == 0 || offset == 1) && (!hasLengthExpression || isLengthConstant)) {
                    return OrderPreserving.YES_IF_LAST;
                }
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    // Addition
    // result scale should be: max(ls, rs)
    // result precision should be: max(lp - ls, rp - rs) + 1 + max(ls, rs)
    @Test
    public void testDecimalAddition() throws Exception {
        LiteralExpression op1, op2, op3;
        List<Expression> children;
        ImmutableBytesWritable ptr;
        DecimalAddExpression e;
        boolean evaluated;
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        assertEqualValue(PDataType.DECIMAL, new BigDecimal("10000.2111"), ptr);
    }

    @Test
    public void testIntPlusDecimal() throws Exception {
        LiteralExpression op1, op2;
        List<Expression> children;
        ImmutableBytesWritable ptr;
        DecimalAddExpression e;
        boolean evaluated;

        op1 = LiteralExpression.newConstant(new BigDecimal("1234.111"), PDataType.DECIMAL);
        assertEquals(Integer.valueOf(3),op1.getScale());
        op2 = LiteralExpression.newConstant(1, PDataType.INTEGER);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalAddExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
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    // Subtraction
    // result scale should be: max(ls, rs)
    // result precision should be: max(lp - ls, rp - rs) + 1 + max(ls, rs)
    @Test
    public void testDecimalSubtraction() throws Exception {
        LiteralExpression op1, op2, op3;
        List<Expression> children;
        ImmutableBytesWritable ptr;
        DecimalSubtractExpression e;
        boolean evaluated;
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    // Multiplication
    // result scale should be: ls + rs
    // result precision should be: lp + rp
    @Test
    public void testDecimalMultiplication() throws Exception {
        LiteralExpression op1, op2;
        List<Expression> children;
        ImmutableBytesWritable ptr;
        DecimalMultiplyExpression e;
        boolean evaluated;

        op1 = LiteralExpression.newConstant(new BigDecimal("12345"), PDataType.DECIMAL, 5, 0);
        op2 = LiteralExpression.newConstant(new BigDecimal("123.45"), PDataType.DECIMAL, 5, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalMultiplyExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
        assertTrue(evaluated);
        assertEqualValue(PDataType.DECIMAL, new BigDecimal("1523990.25"), ptr);

        // Value too big, exceeds precision.
        op1 = LiteralExpression.newConstant(new BigDecimal("12345678901234567890123456789012345678"), PDataType.DECIMAL, 38, 0);
        op2 = LiteralExpression.newConstant(new BigDecimal("12345"), PDataType.DECIMAL, 5, 0);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalMultiplyExpression(children);
        ptr = new ImmutableBytesWritable();
        try {
            evaluated = e.evaluate(null, ptr);
            fail("Evaluation should have failed");
        } catch (ValueTypeIncompatibleException ex) {
        }

        // Values exceeds scale.
        op1 = LiteralExpression.newConstant(new BigDecimal("12345678901234567890123456789012345678"), PDataType.DECIMAL, 38, 0);
        op2 = LiteralExpression.newConstant(new BigDecimal("1.45"), PDataType.DECIMAL, 3, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalMultiplyExpression(children);
        ptr = new ImmutableBytesWritable();
        try {
            evaluated = e.evaluate(null, ptr);
            fail("Evaluation should have failed");
        } catch (ValueTypeIncompatibleException ex) {
        }
       
        // Decimal with no precision and scale.
        op1 = LiteralExpression.newConstant(new BigDecimal("1111.1"), PDataType.DECIMAL);
        assertEquals(Integer.valueOf(1),op1.getScale());
        op2 = LiteralExpression.newConstant(new BigDecimal("1.1111"), PDataType.DECIMAL, 5, 4);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalMultiplyExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
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    // Division
    // result scale should be: 31 - lp + ls - rs
    // result precision should be: lp - ls + rp + scale
    @Test
    public void testDecimalDivision() throws Exception {
        LiteralExpression op1, op2;
        List<Expression> children;
        ImmutableBytesWritable ptr;
        DecimalDivideExpression e;
        boolean evaluated;
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    public RoundDecimalExpression() {}
   
    public RoundDecimalExpression(List<Expression> children) {
        super(children);
        LiteralExpression scaleChild = (LiteralExpression)children.get(1);
        PDataType scaleType = scaleChild.getDataType();
        Object scaleValue = scaleChild.getValue();
        if(scaleValue != null) {
            if (scaleType.isCoercibleTo(PDataType.INTEGER, scaleValue)) {
                int scale = (Integer)PDataType.INTEGER.toObject(scaleValue, scaleType);
                if (scale >=0 && scale <= PDataType.MAX_PRECISION) {
                    this.scale = scale;
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Related Classes of org.apache.phoenix.expression.LiteralExpression

  • org.apache.phoenix.arithmetic.ArithmeticOperationTest
  • org.apache.phoenix.compile.CreateIndexCompiler
  • org.apache.phoenix.compile.CreateTableCompiler
  • org.apache.phoenix.compile.ExpressionCompiler
  • org.apache.phoenix.compile.UpsertCompiler
  • org.apache.phoenix.expression.function.RegexpSubstrFunction
  • org.apache.phoenix.expression.function.RoundDecimalExpression
  • org.apache.phoenix.expression.function.RoundTimestampExpression
  • org.apache.phoenix.expression.function.SubstrFunction
  • org.apache.phoenix.parse.FunctionParseNode
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