com.nt.udc.aggregator.util

Class AggrShifter

java.lang.Object

com.nt.udc.aggregator.AggregatorModule

com.nt.udc.aggregator.util.AggrShifter

public class AggrShifter
extends AggregatorModule

This class handles those fields that need to be moved, or shifted, from one field id to another field id. This is done with a simple factor value which is added to the field id when shifting occurs. Shifting occurs conditionally, when a certain field matches the pre-configured value.

Field Summary

Fields

Modifier and Type	Field and Description
protected int	shift_factor
protected int	shiftAttrID
protected int[]	shiftAttrs
protected java.lang.String	shiftAttrValue

Fields inherited from class com.nt.udc.aggregator.AggregatorModule

config, logger

Constructor Summary

Constructors

Constructor and Description
AggrShifter(ConfigIfc config, LoggerIfc logger) Creates a shifter object with the configuration and logger objects.

Method Summary

Modifier and Type	Method and Description
protected void	getConfigData() Gets the shifting-related rules
boolean	needShift(NAR nar) Checks if the given NAR needs shifting.
int[]	recordInitFields() Returns those fields needed by a newly created record
void	shift(NAR nar) Shifts the appropriate fields of the given NAR by the configured shift factor.
void	shutdown() Performs shutdown procedures.

Methods inherited from class java.lang.Object

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

Field Detail

shift_factor

protected int shift_factor

shiftAttrs

protected int[] shiftAttrs

shiftAttrID

protected int shiftAttrID

shiftAttrValue

protected java.lang.String shiftAttrValue

Constructor Detail

AggrShifter

public AggrShifter(ConfigIfc config,
                   LoggerIfc logger)

Creates a shifter object with the configuration and logger objects.

Method Detail

getConfigData

protected void getConfigData()

Gets the shifting-related rules

Specified by:

getConfigData in class AggregatorModule

recordInitFields

public int[] recordInitFields()

Returns those fields needed by a newly created record

Specified by:

recordInitFields in class AggregatorModule

Returns:

Field ID's to include in a new record that is inserted into the table.

shutdown

public void shutdown()

Performs shutdown procedures.

Specified by:

shutdown in class AggregatorModule

needShift

public boolean needShift(NAR nar)

Checks if the given NAR needs shifting.

Parameters:

nar - NAR to check

Returns:

true, if this record needs shifting

shift

public void shift(NAR nar)

Shifts the appropriate fields of the given NAR by the configured shift factor.

Parameters:

nar - NAR to shift