Package com.basiscomponents.util

Class JLibDataFileHandler

java.lang.Object

com.basiscomponents.util.JLibDataFileHandler

public class JLibDataFileHandler
extends Object

Imports the data of a Data File into a com.basiscomponents.db.ResultSet object using the BASIS JLib.

Field Summary

Fields

Modifier and Type	Field	Description
static String	FILTER_KNUM
static String	FILTER_RANGE_FROM
static String	FILTER_RANGE_TO
static String	FILTER_VALUE

Constructor Summary

Constructors

Constructor	Description
JLibDataFileHandler()

Method Summary

Modifier and Type	Method	Description
protected byte[]	cutEmptyTailInRecord(byte[] record)	cuts the leading tail of zeros at the end of the array and returns a smaller array
String	getTemplatedString()	Returns the Templated String.
void	remove(DataRow dr)
ResultSet	retrieve()	Returns a ResultSet object with the content of the Data file based on the specified filter, offset, field selection.
void	setFieldSelection(DataRow fieldSelection)	Sets the field names to be retrieved from the Data file to the field name's of the given DataRow object.
void	setFile(String filePath, String template)	Sets the path of the Data file and its Templated String.
void	setFilter(DataRow filter)	Sets the filter to apply while retrieving the records from the Data file.
void	setOffset(int record, int count)	Sets the offset and the record index to start from when retrieving the Data from the Data file.
DataRow	write(DataRow dr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FILTER_KNUM

public static final String FILTER_KNUM

See Also:

Constant Field Values

FILTER_RANGE_FROM

public static final String FILTER_RANGE_FROM

See Also:

Constant Field Values

FILTER_RANGE_TO

public static final String FILTER_RANGE_TO

See Also:

Constant Field Values

FILTER_VALUE

public static final String FILTER_VALUE

See Also:

Constant Field Values

Constructor Detail

JLibDataFileHandler

public JLibDataFileHandler()

Method Detail

setFile

public void setFile(String filePath,
                    String template)
             throws com.basis.startup.type.BBjException

Sets the path of the Data file and its Templated String.

Parameters:

filePath - The path of the Data file

template - The Templated String matching the Data file

Throws:

com.basis.startup.type.BBjException

setOffset

public void setOffset(int record,
                      int count)

Sets the offset and the record index to start from when retrieving the Data from the Data file.

Parameters:

record - The record index to start from

count - The number of records to read from the offset.

setFilter

public void setFilter(DataRow filter)

Sets the filter to apply while retrieving the records from the Data file. Currently the filter can be used to specify:

• a range of values(from-to)
• an exact primary key value
• the KNUM to use

Use the following the field names:

• JLibResultSetImporter.FILTER_KNUM
• JLibResultSetImporter.FILTER_RANGE_FROM
• JLibResultSetImporter.FILTER_RANGE_TO
• JLibResultSetImporter.FILTER_VALUE

Parameters:

filter - The filter to set.

setFieldSelection

public void setFieldSelection(DataRow fieldSelection)

Sets the field names to be retrieved from the Data file to the field name's of the given DataRow object.

Parameters:

fieldSelection - The DataRow whose field names will be set as field selection.

write

public DataRow write(DataRow dr)
              throws com.basis.filesystem.FilesystemException,
                     NoSuchFieldException,
                     com.basis.startup.type.BBjException

Throws:

com.basis.filesystem.FilesystemException

NoSuchFieldException

com.basis.startup.type.BBjException

cutEmptyTailInRecord

protected byte[] cutEmptyTailInRecord(byte[] record)

cuts the leading tail of zeros at the end of the array and returns a smaller array

Parameters:

record - array to be trimmed

Returns:

smaller byte array that is a trimmed version of the original one.

remove

public void remove(DataRow dr)
            throws com.basis.filesystem.FilesystemException

Throws:

com.basis.filesystem.FilesystemException

retrieve

public ResultSet retrieve()
                   throws IndexOutOfBoundsException,
                          NoSuchFieldException,
                          Exception

Returns a ResultSet object with the content of the Data file based on the specified filter, offset, field selection.

Returns:

A ResultSet object with the records of the data file.

Throws:

IndexOutOfBoundsException

NoSuchFieldException

Exception

getTemplatedString

public String getTemplatedString()

Returns the Templated String.

Returns:

The Templated String.