Field attributes such as presence do not seem to be accessible

<field description="Account mnemonic as agreed between buy and sell sides, e.g. broker and institution or investor/intermediary and fund manager." id="1" name="Account" semanticType="String" presence="required" offset="25" type="String12"/>

//String example in rlsbe

public static int accountId()
{
return 1;
}

public static int accountSinceVersion()
{
return 0;
}

public static String accountMetaAttribute(final MetaAttribute metaAttribute)
{
switch (metaAttribute)
{
case EPOCH: return "unix";
case TIME_UNIT: return "nanosecond";
case SEMANTIC_TYPE: return "String";
}

return "";

}

public static byte accountNullValue()
{
return (byte)0;
}

public static byte accountMinValue()
{
return (byte)32;
}

public static byte accountMaxValue()
{
return (byte)126;
}

public static int accountLength()
{
return 12;
}

public byte account(final int index)
{
if (index < 0 || index >= 12)
{
throw new IndexOutOfBoundsException("index out of range: index=" + index);
}

final int pos = this.offset + 25 + (index * 1);
return buffer.getByte(pos);

}

public static String accountCharacterEncoding()
{
return "UTF-8";
}

public int getAccount(final byte[] dst, final int dstOffset)
{
final int length = 12;
if (dstOffset < 0 || dstOffset > (dst.length - length))
{
throw new IndexOutOfBoundsException("dstOffset out of range for copy: offset=" + dstOffset);
}

buffer.getBytes(this.offset + 25, dst, dstOffset, length);
return length;

}
we’d expect in something related to presence in meta attribute function, although right now that’s not even a member of the MetaAttribute enum:

public static String accountMetaAttribute(final MetaAttribute metaAttribute)
{
switch (metaAttribute)
{
case EPOCH: return "unix";
case TIME_UNIT: return "nanosecond";
case SEMANTIC_TYPE: return "String";
case PRESENCE: return “required”;
}

return "";

}