@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
BigDecimal result = null;
for (int i = 0; i < children.size(); i++) {
Expression childExpr = children.get(i);
if (!childExpr.evaluate(tuple, ptr)) {
return false;
}
if (ptr.getLength() == 0) {
return true;
}
PDataType childType = children.get(i).getDataType();
BigDecimal bd = (BigDecimal) PDataType.DECIMAL.toObject(ptr, childType);
if (result == null) {
result = bd;
} else {
result = result.divide(bd, PDataType.DEFAULT_MATH_CONTEXT);
}
}
if (maxLength != null && scale != null) {
result = NumberUtil.setDecimalWidthAndScale(result, maxLength, scale);
}
if (result == null) {
throw new ValueTypeIncompatibleException(PDataType.DECIMAL, maxLength, scale);
}
ptr.set(PDataType.DECIMAL.toBytes(result));
return true;
}
@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
BigDecimal result = null;
DateNative dateNative = DateNative.getInstance();
for (int i = 0; i < children.size(); i++) {
if (!children.get(i).evaluate(tuple, ptr) || ptr.getLength() == 0) {
return false;
}
PDataType childType = children.get(i).getDataType();
boolean isDate = childType.isCoercibleTo(PDataType.DATE);
BigDecimal bd =
isDate
? BigDecimal.valueOf(dateNative.toLong(ptr))
: (BigDecimal) PDataType.DECIMAL.toObject(ptr, childType);
if (result == null) {
result = bd;
} else {
result = result.subtract(bd);
/*
* Special case for date subtraction - note that only first two expression may be dates.
* We need to convert the date to a unit of "days" because that's what sql expects.
*/
if (isDate) {
result = result.divide(BD_MILLIS_IN_DAY, PDataType.DEFAULT_MATH_CONTEXT);
}
}
}
ptr.set(PDataType.DECIMAL.toBytes(result));
return true;
}
@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
BigDecimal result = null;
for (int i = 0; i < children.size(); i++) {
if (!children.get(i).evaluate(tuple, ptr) || ptr.getLength() == 0) {
return false;
}
PDataType childType = children.get(i).getDataType();
BigDecimal bd = (BigDecimal) PDataType.DECIMAL.toObject(ptr, childType);
if (result == null) {
result = bd;
} else {
result = result.divide(bd, PDataType.DEFAULT_MATH_CONTEXT);
}
}
ptr.set(PDataType.DECIMAL.toBytes(result));
return true;
}
@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
if (!super.evaluate(tuple, ptr)) {
return false;
}
if (isConstantExpression()) {
PDataType type = getDataType();
Object constantValue = ((LiteralExpression) children.get(0)).getValue();
if (type == PDataType.DECIMAL) {
BigDecimal value =
((BigDecimal) constantValue)
.multiply((BigDecimal) PDataType.DECIMAL.toObject(ptr, PDataType.LONG));
ptr.set(PDataType.DECIMAL.toBytes(value));
} else {
long constantLongValue = ((Number) constantValue).longValue();
long value = constantLongValue * type.getCodec().decodeLong(ptr, null);
ptr.set(new byte[type.getByteSize()]);
type.getCodec().encodeLong(value, ptr);
}
}
return true;
}
@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
BigDecimal finalResult = BigDecimal.ZERO;
for (int i = 0; i < children.size(); i++) {
if (!children.get(i).evaluate(tuple, ptr)) {
return false;
}
if (ptr.getLength() == 0) {
return true;
}
BigDecimal value;
PDataType type = children.get(i).getDataType();
ColumnModifier columnModifier = children.get(i).getColumnModifier();
if (type == PDataType.TIMESTAMP || type == PDataType.UNSIGNED_TIMESTAMP) {
value = (BigDecimal) (PDataType.DECIMAL.toObject(ptr, type, columnModifier));
} else if (type.isCoercibleTo(PDataType.DECIMAL)) {
value =
(((BigDecimal) PDataType.DECIMAL.toObject(ptr, columnModifier))
.multiply(QueryConstants.BD_MILLIS_IN_DAY))
.setScale(6, RoundingMode.HALF_UP);
} else if (type.isCoercibleTo(PDataType.DOUBLE)) {
value =
((BigDecimal.valueOf(type.getCodec().decodeDouble(ptr, columnModifier)))
.multiply(QueryConstants.BD_MILLIS_IN_DAY))
.setScale(6, RoundingMode.HALF_UP);
} else {
value = BigDecimal.valueOf(type.getCodec().decodeLong(ptr, columnModifier));
}
finalResult = finalResult.add(value);
}
Timestamp ts = DateUtil.getTimestamp(finalResult);
byte[] resultPtr = new byte[getDataType().getByteSize()];
PDataType.TIMESTAMP.toBytes(ts, resultPtr, 0);
ptr.set(resultPtr);
return true;
}
