com.sun.mdm.index.survivor.impl
Class UnionSurvivorStrategy

java.lang.Object
  com.sun.mdm.index.survivor.impl.UnionSurvivorStrategy

All Implemented Interfaces:

SurvivorStrategyInterface

public class UnionSurvivorStrategy

extends java.lang.Object

implements SurvivorStrategyInterface

Unions the values from each SystemObject and return it as a collection

Constructor Summary

UnionSurvivorStrategy()
Creates a new instance of UnionSurvivorStrategy

Method Summary

java.lang.Object	clone()
void	init(java.util.Collection parameters)
SystemField	selectField(java.lang.String candidateId, SystemFieldListMap fields) Unions the values from each SystemObject and return it as a collection

Methods inherited from class java.lang.Object

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

Constructor Detail

UnionSurvivorStrategy

public UnionSurvivorStrategy()

Creates a new instance of UnionSurvivorStrategy

Method Detail

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Specified by:

clone in interface SurvivorStrategyInterface

Returns:

shallow clone

Throws:

java.lang.CloneNotSupportedException - cloning is not supported

init

public void init(java.util.Collection parameters)
          throws StrategyCreationException

Description copied from interface: SurvivorStrategyInterface

Initializes the survivor strategy object. Call this method after creating the object.

Specified by:

init in interface SurvivorStrategyInterface

Parameters:

parameters - The parameters given in the Best Record configuration file.

Returns:

void - None.

Throws:

StrategyCreationException - Thrown if the strategy cannot be initialized.

See Also:

SurvivorStrategyInterface.init(java.util.Collection)

selectField

public SystemField selectField(java.lang.String candidateId,
                               SystemFieldListMap fields)
                        throws SurvivorCalculationException

Unions the values from each SystemObject and return it as a collection

Specified by:

selectField in interface SurvivorStrategyInterface

Parameters:

candidateId - The candidate field name.

fields - The mapping of a system fields list to a system key.

Returns:

SystemField - The value of the field that has been selected to populate the SBR. This method returns null if the new value cannot be determined and the original candidate value should be used.

Throws:

SurvivorCalculationException - Thrown if there is an error with the calculation configuration.

See Also:

SurvivorStrategyInterface.selectField(java.lang.String, com.sun.mdm.index.survivor.SystemFieldListMap)