de.uni_mannheim.informatik.dws.winter.datafusion

Class AttributeFuser<RecordType extends Matchable & Fusible<SchemaElementType>,SchemaElementType extends Matchable>

java.lang.Object

de.uni_mannheim.informatik.dws.winter.datafusion.AttributeFuser<RecordType,SchemaElementType>

Type Parameters:

RecordType - the type that represents a record

Direct Known Subclasses:

AttributeValueFuser

public abstract class AttributeFuser<RecordType extends Matchable & Fusible<SchemaElementType>,SchemaElementType extends Matchable>
extends Object

Abstract super class for all Fusers used by a fusion strategy

Author:

Oliver Lehmberg (oli@dwslab.de)

Constructor Summary

Constructors

Constructor and Description
AttributeFuser()

Method Summary

Modifier and Type	Method and Description
abstract void	fuse(RecordGroup<RecordType,SchemaElementType> group, RecordType fusedRecord, Processable<Correspondence<SchemaElementType,Matchable>> schemaCorrespondences, SchemaElementType schemaElement) fuses the group of records and assigns values to the fused Record
abstract Double	getConsistency(RecordGroup<RecordType,SchemaElementType> group, EvaluationRule<RecordType,SchemaElementType> rule, Processable<Correspondence<SchemaElementType,Matchable>> schemaCorrespondences, SchemaElementType schemaElement) Determines if the given group of records has conflicting values
AttributeFusionLogger	getFusionLog()
abstract boolean	hasValue(RecordType record, Correspondence<SchemaElementType,Matchable> correspondence) Determines whether the record has a value for the attribute that is used by this fuser.
boolean	isCollectDebugResults()
void	setCollectDebugResults(boolean collectDebugResults)
void	setFusionLog(AttributeFusionLogger fusionLog)

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeFuser

public AttributeFuser()

Method Detail

getFusionLog

public AttributeFusionLogger getFusionLog()

setFusionLog

public void setFusionLog(AttributeFusionLogger fusionLog)

isCollectDebugResults

public boolean isCollectDebugResults()

setCollectDebugResults

public void setCollectDebugResults(boolean collectDebugResults)

fuse

public abstract void fuse(RecordGroup<RecordType,SchemaElementType> group,
                          RecordType fusedRecord,
                          Processable<Correspondence<SchemaElementType,Matchable>> schemaCorrespondences,
                          SchemaElementType schemaElement)

fuses the group of records and assigns values to the fused Record

Parameters:

group - the group of values to be fused (input)

fusedRecord - the fused record (output)

schemaCorrespondences - the schema correspondences

schemaElement - the schema element to fuse

hasValue

public abstract boolean hasValue(RecordType record,
                                 Correspondence<SchemaElementType,Matchable> correspondence)

Determines whether the record has a value for the attribute that is used by this fuser. Required for the collection of fusable values.

Parameters:

record - the record

correspondence - the correspondence that specifies the schema element

Returns:

true if the record has a value for the attribute in the correspondence

getConsistency

public abstract Double getConsistency(RecordGroup<RecordType,SchemaElementType> group,
                                      EvaluationRule<RecordType,SchemaElementType> rule,
                                      Processable<Correspondence<SchemaElementType,Matchable>> schemaCorrespondences,
                                      SchemaElementType schemaElement)

Determines if the given group of records has conflicting values

Parameters:

group - the record group

rule - the evaluation rule

schemaCorrespondences - the schema correspondences

schemaElement - the schema element

Returns:

the consistency value if any values are available. NULL if no values are available