/**
* Set the width of the to the desired value. Used when CASTing. Ideally we'd recycle normalize(),
* but the behavior is different (we issue a warning instead of an error, and we aren't interested
* in nullability).
*
* @param desiredWidth the desired length
* @param desiredScale the desired scale (ignored)
* @param errorOnTrunc throw error on truncation
* @exception StandardException Thrown on non-zero truncation if errorOnTrunc is true
*/
public void setWidth(
int desiredWidth,
int desiredScale, // Ignored
boolean errorOnTrunc)
throws StandardException {
/*
** If the input is NULL, nothing to do.
*/
if (getValue() == null) {
return;
}
int sourceWidth = dataValue.length;
/*
** If the input is shorter than the desired type,
** then pad with blanks to the right length.
*/
if (sourceWidth < desiredWidth) {
byte[] actualData = new byte[desiredWidth];
System.arraycopy(dataValue, 0, actualData, 0, dataValue.length);
java.util.Arrays.fill(actualData, dataValue.length, actualData.length, SQLBinary.PAD);
dataValue = actualData;
}
/*
** Truncation?
*/
else if (sourceWidth > desiredWidth) {
if (errorOnTrunc) {
// error if truncating non pad characters.
for (int i = desiredWidth; i < dataValue.length; i++) {
if (dataValue[i] != SQLBinary.PAD)
throw StandardException.newException(
SQLState.LANG_STRING_TRUNCATION,
getTypeName(),
StringUtil.formatForPrint(this.toString()),
String.valueOf(desiredWidth));
}
}
/*
** Truncate to the desired width.
*/
truncate(sourceWidth, desiredWidth, !errorOnTrunc);
}
}
