Package app.babylon.table.io

Class HeaderStrategyNoHeaders

java.lang.Object

app.babylon.table.io.HeaderStrategyNoHeaders

All Implemented Interfaces:

HeaderStrategy

public class HeaderStrategyNoHeaders
extends Object
implements HeaderStrategy

Field Summary

Fields inherited from interface app.babylon.table.io.HeaderStrategy

DEFAULT_SCAN_LIMIT

Constructor Summary

Constructors

Constructor	Description
HeaderStrategyNoHeaders(int scanLimit)
HeaderStrategyNoHeaders(int scanLimit, String columnPrefix)

Method Summary

Modifier and Type	Method	Description
HeaderDetection	detectFoundHeaders(RowStreamMarkable rowStream, Set<ColumnName> selectedColumns)	Detects the raw headers present in the source.
String	getColumnPrefix()
int	getScanLimit()	Returns the maximum number of rows to scan during header detection.

Methods inherited from class java.lang.Object

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

Methods inherited from interface app.babylon.table.io.HeaderStrategy

detect

Constructor Details

HeaderStrategyNoHeaders

public HeaderStrategyNoHeaders(int scanLimit)

HeaderStrategyNoHeaders

public HeaderStrategyNoHeaders(int scanLimit,
 String columnPrefix)

Method Details

getScanLimit

public int getScanLimit()

Description copied from interface: HeaderStrategy

Returns the maximum number of rows to scan during header detection.

Specified by:

getScanLimit in interface HeaderStrategy

Returns:

scan limit

getColumnPrefix

public String getColumnPrefix()

detectFoundHeaders

public HeaderDetection detectFoundHeaders(RowStreamMarkable rowStream,
 Set<ColumnName> selectedColumns)
                                   throws IOException

Description copied from interface: HeaderStrategy

Detects the raw headers present in the source.

Specified by:

detectFoundHeaders in interface HeaderStrategy

Parameters:

rowStream - row stream to inspect

selectedColumns - requested selected columns

Returns:

detected raw header information

Throws:

IOException - if stream inspection fails