Package org.apache.phoenix.expression

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

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        op1 = LiteralExpression.newConstant(new BigDecimal("12345"), PDataType.DECIMAL, 5, 0);
        op2 = LiteralExpression.newConstant(new BigDecimal("0.01"), PDataType.DECIMAL, 2, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
        assertTrue(evaluated);
        assertEqualValue(PDataType.DECIMAL, new BigDecimal("1.2345E+6"), ptr);

        // Exceeds precision.
        op1 = LiteralExpression.newConstant(new BigDecimal("12345678901234567890123456789012345678"), PDataType.DECIMAL, 38, 0);
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        op2 = LiteralExpression.newConstant(new BigDecimal("0.01"), PDataType.DECIMAL, 2, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        try {
            evaluated = e.evaluate(null, ptr);
            fail("Evaluation should have failed");
        } catch (ValueTypeIncompatibleException ex) {
        }
       
        // Decimal with no precision and scale.
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        op2 = LiteralExpression.newConstant(new BigDecimal("3"), PDataType.DECIMAL, 5, 4);
        assertEquals(Integer.valueOf(4),op2.getScale());
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
        assertTrue(evaluated);
        assertEqualValue(PDataType.DECIMAL, new BigDecimal("3.3333333333333333333333333333333333333"), ptr);
    }

    private static void assertEqualValue(PDataType type, Object value, ImmutableBytesWritable ptr) {
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        op2 = LiteralExpression.newConstant(new BigDecimal("0.01"), PDataType.DECIMAL, 2, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        try {
            evaluated = e.evaluate(null, ptr);
            fail("Evaluation should have failed");
        } catch (ValueTypeIncompatibleException ex) {
        }
       
        // Decimal with no precision and scale.
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        op2 = LiteralExpression.newConstant(new BigDecimal("3"), PDataType.DECIMAL, 5, 4);
        assertEquals(Integer.valueOf(4),op2.getScale());
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
        assertTrue(evaluated);
        assertEqualValue(PDataType.DECIMAL, new BigDecimal("3.3333333333333333333333333333333333333"), ptr);
    }

    private static void assertEqualValue(PDataType type, Object value, ImmutableBytesWritable ptr) {
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        op1 = LiteralExpression.newConstant(new BigDecimal("12345"), PDataType.DECIMAL, 5, 0);
        op2 = LiteralExpression.newConstant(new BigDecimal("0.01"), PDataType.DECIMAL, 2, 2);
        children = Arrays.<Expression>asList(op1, op2);
        e = new DecimalDivideExpression(children);
        ptr = new ImmutableBytesWritable();
        evaluated = e.evaluate(null, ptr);
        assertTrue(evaluated);
        assertEqualValue(PDataType.DECIMAL, new BigDecimal("1.2345E+6"), ptr);

        // Exceeds precision.
        op1 = LiteralExpression.newConstant(new BigDecimal("12345678901234567890123456789012345678"), PDataType.DECIMAL, 38, 0);
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