Package com.semedy.reasoner.reasoning.processes

Class OneToOneBaseRelation

java.lang.Object

com.semedy.reasoner.reasoning.processes.CrossProductBaseRelation

com.semedy.reasoner.reasoning.processes.OneToOneBaseRelation

All Implemented Interfaces:

BaseRelation

public class OneToOneBaseRelation
extends CrossProductBaseRelation

Author:

angele

Constructor Summary

Constructors

Constructor	Description
OneToOneBaseRelation(BaseRelation[] relations)

Method Summary

Modifier and Type	Method	Description
Index	createIndex(int[] indexedPositions)	Get or create a simple (not sorted index) by the argument positions in indexed positions.
SortedIndex	createSortedIndex(int[] indexedPositions)	ret or create a sorted index given by the argument positions in indexed positions
TupleEnumerator	elements()	returns an enumerator for all tuples
TupleEnumerator	elements(long[] filter)	returns an filteres enumerator for all tuples
boolean	mayContainDuplicates()	Might there be duplicates?
long	size()	returns the number of tuples in relation

Methods inherited from class com.semedy.reasoner.reasoning.processes.CrossProductBaseRelation

addSubRelation, addTuple, addTuple, addTuple, clear, close, containsTuple, containsTuple, containsTuple, flush, getArity, getCacheInfo, getDirectEncodedType, getIdentifier, getIndex, getInputBuffer, getInternalArity, getMaxValue, getMinValue, getNumberOfDifferentValues, getRelationAtArgument, getRelations, getSortedIndex, hasDuplicates, hasIndices, isDirectEncoded, isEmpty, isOverwrittenByTuple, isPersistent, isTemporary, lastModificationTime, overwriteTuple, overwriteTuple, readTupleFile, registerListener, removeTuple, removeTuple, removeTuple, select, sizeInBytes, toString, union, writeBinary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

OneToOneBaseRelation

public OneToOneBaseRelation(BaseRelation[] relations)

Parameters:

relations -

Method Details

elements

public TupleEnumerator elements(long[] filter)
                         throws IOException,
EDBException

Description copied from interface: BaseRelation

returns an filteres enumerator for all tuples

Specified by:

elements in interface BaseRelation

Overrides:

elements in class CrossProductBaseRelation

Returns:

returns enumerator for tuples

Throws:

IOException

EDBException

elements

public TupleEnumerator elements()
                         throws IOException,
EDBException

Description copied from interface: BaseRelation

returns an enumerator for all tuples

Specified by:

elements in interface BaseRelation

Overrides:

elements in class CrossProductBaseRelation

Returns:

returns enumerator for tuples

Throws:

IOException

EDBException

size

public long size()
          throws EDBException,
IOException

Description copied from interface: BaseRelation

returns the number of tuples in relation

Specified by:

size in interface BaseRelation

Overrides:

size in class CrossProductBaseRelation

Returns:

number of tuples in relation

Throws:

EDBException

IOException

mayContainDuplicates

public boolean mayContainDuplicates()

Description copied from interface: BaseRelation

Might there be duplicates?

Specified by:

mayContainDuplicates in interface BaseRelation

Overrides:

mayContainDuplicates in class CrossProductBaseRelation

Returns:

, might there be duplicates in relation

createIndex

public Index createIndex(int[] indexedPositions)
                  throws IOException,
EDBException

Description copied from interface: BaseRelation

Get or create a simple (not sorted index) by the argument positions in indexed positions.

Specified by:

createIndex in interface BaseRelation

Overrides:

createIndex in class CrossProductBaseRelation

Parameters:

indexedPositions - , positions which are indexed

Returns:

index

Throws:

IOException

EDBException

createSortedIndex

public SortedIndex createSortedIndex(int[] indexedPositions)
                              throws IOException,
EDBException

Description copied from interface: BaseRelation

ret or create a sorted index given by the argument positions in indexed positions

Specified by:

createSortedIndex in interface BaseRelation

Overrides:

createSortedIndex in class CrossProductBaseRelation

Returns:

Throws:

IOException

EDBException