EDOBE XDOM PMML Manual de usuario descargar pdf (Pagina 80)

isReady returns true (non-zero) if the CNKBuf is ready to be written to.

Normally, this is true if

getRowsReady() is greater than or equal to

getRequestRows(). isReady() will always return false (zero) if the

error string of the

CNKBuf is not NULL: in this case, the CNKProc should

not try accessing the row data.

CNKBufWriter::

virtual void setDouble(long rowNum, int columnNum,

double val);

virtual void setLevelNum(long rowNum, long colNum,

long val);

virtual void setString(long rowNum, long colNum,

const char* val);

virtual void setTimeDate(long rowNum, long colNum,

CNKTimeDate val);

setDouble

stores a single double value into the CNKBuf at a given row

and column.

rowNum is the row number in the currently-accessible

chunk of data rows: the first row is always accessed with

rowNum==0.

rowNum should be less than getRowsReady(). columnNum is the column

number for the data, from

0 to CNKBuf::getNumcolumns()-1.

These methods respectively set a value as a double, factor, string, or

timeDate.

CNKBufWriter::

virtual void setConvertDouble(long rowNum,

int columnNum, double val);

virtual void setConvertFactor(long rowNum,

int columnNum, const char* level);

virtual void setConvertString(long rowNum, long colNum,

const char* level);

setConvertDouble

, setConvertFactor, and setConvertString are

useful methods for setting a given item in the

CNKBuf to the specified

double or factor level value. These methods check whether the

column type is double or factor, and converts the given value if it is

not. In some cases, the conversion may not be meaningful, but it tries

to do something reasonable.

With

setConvertDouble, if the column is actually a factor column, the

double is converted into a string (such as

"1.2"), and that string is

used as the factor level. If there are only a few different double values

stored in this way, the resulting factors may be useful.

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