BrField Class

This class manages a single data field.

getNameAs

String  getNameAsString()
byte[]  getNameAsBytes()

getNameAs returns the field name in requested form.

setData

void  setData(char     srcData)
void  setData(byte     srcData)
void  setData(byte[]   srcData)
void  setData(short    srcData)
void  setData(int      srcData)
void  setData(boolean  srcData)
void  setData(String   srcData)
void  setData(BrField  srcData)

setData updates the data buffer with srcData. If this is the first time the data field is updated with data, then it also sets the dataType for the field (refer to Table 4 for the data types). Set setData (String) and setData (char) to CHAR and all the others set to BYTE.

void  setData(byte[]  srcData, int  srcOffset, int  length)

It also sets the field’s data array to byte array passed in. The data array is enlarged if the length of the incoming data is large than the current array.

appendData

void  appendData(byte[]  srcData, int  srcOffset, int  length)

appendData appends the byte array in srcData to the data array of the field. If necessary, the data array of the field is enlarged.

insertData

void  insertData(byte[]  srcData, int  srcOffset, int  dstOffset, int  dstLength)

insertData inserts the data array of the object at dstOffset to the byte array passed in. The data array is enlarged if the length of the incoming data is larger than the current array.

getData

char     getDataAsChar()
byte     getDataAsByte()
short    getDataAsShort()
int      getDataAsInt()
byte[]   getDataAsBytes()
boolean  getDataAsBoolean()
String   getDataAsString()
byte     getDataByte(int  offset)

All of the routines return a copy of the field’s data in the form requested.

isNewData

boolean  isNewData()

isNewData tests to see if the field’s data was updated.

isNewDataAndNotNull

boolean  isNewDataAndNotNull()

isNewDataAndNotNull tests to see if the field’s data was updated and has a nonzero length. It is equivalent to brfld.isNewData() && (brfld.getDataLength() > 0).

isDataNotNull

boolean  isDataNotNull()

isDataNotNull tests to see if the field’s data contains a nonzero length.

getDataLength

int  getDataLength()

getDataLength returns the length of the data.

getName

byte[]  getNameAsBytes()
String  getNameAsString()

getName returns the field name.

getDataType

byte  getDataType()

getDataType returns the dataType of the field. Refer to Table 4 for more details.

setDataType

void  setDataType(byte newDataType)

setDataType sets the dataType for the field. Refer to Table 4 for more details.

newDataBuffer

void  newDataBuffer(int dataSize)

newDataBuffer re-initializes the data buffer for this data field. This operation will destroy the current data buffer.