How to set real FIDs to blank using Java EMA?

Paul.Wuethrich2

I'm looking for an example on setting a field to blank using the EMA API

Current Java EMA code to set FIDs with no logic to set real FIDs to blank

{

...

FieldList nestedFieldList = EmaFactory.createFieldList();

nestedFieldList.add(createOmmRealField(22, priceInfo.getBidPrice()));

...

}

public static FieldEntry createOmmRealField(int fieldId, BigDecimal value) {

BigDecimal valueStripped = value;//value.stripTrailingZeros();

// magnitude constants for scale exists up to -7

if(valueStripped.scale() < -7) {

valueStripped = valueStripped.setScale(-7);

}

// we translate scale to Magnitude type constant

int magnitude = OmmReal.MagnitudeType.EXPONENT_0 - valueStripped.scale();

long mantissa = valueStripped.unscaledValue().longValueExact();

return EmaFactory.createFieldEntry().real(fieldId, mantissa, magnitude);

}

ETA version of setting blank:

// ASK

fieldEntry.clear();

dictionaryEntry = dictionary.entry(MarketPriceItem.ASK_FID);

if (dictionaryEntry != null) {

fieldEntry.fieldId(MarketPriceItem.ASK_FID);

fieldEntry.dataType(dictionaryEntry.rwfType());

tempReal.clear();

// Set blank for empty book and wipes

if(mpItem.ASK == -0.0) {

tempReal.blank();

}

else {

tempReal.value(mpItem.ASK, RealHints.EXPONENT_4);

}

ret = fieldEntry.encode(encodeIter, tempReal);

if (ret < CodecReturnCodes.SUCCESS) {

return ret;

}

}

umer.nalla

Hi @Paul.Wuethrich2

Have you tried the following:

EmaFactory.createFieldEntry().codeReal( <fieldID> )

If you refer to the EMA Java documentation for FieldEntry you will note a set of methods such as codeReal, codeInt, codeFloat for adding a blank data code to a field entry

Paul.Wuethrich2

Thanks!

Which doc are you referring to as I checked the following pdfs

EMAJ_DevGuide

EMAJ_RDMUsageGuide

ETAJ_ValueAddDevGuide

API_ConceptsGuide

Paul.Wuethrich2

Just found it by navigating from your starting link:

https://docs-developers.refinitiv.com/1573832247683/6066/Docs/refman/emajava/index.html

Thanks again

umer.nalla

Hi @Paul.Wuethrich2

I am referring to the EMA Java Reference guide - which details all the packages/classes/methods etc.

If you are logged into the portal before you click the link in my previous post, it should take you to the right online page.

You should also find it in the following folder of your local Elektron SDK installation

<ESDK Root>\Java\Ema\Docs\refman\emajava\index.html

Paul.Wuethrich2

Thx - looks like I need to pull the latest version of the SDK as mine is from April 2019 and there's no refman/ sub-dir