org.knime.base.node.mine.sota.logic
Class FuzzyHierarchyFilterRowContainer

java.lang.Object
  org.knime.base.node.mine.sota.logic.FuzzyHierarchyFilterRowContainer

All Implemented Interfaces:

Iterable<DataRow>, DataArray, DataTable

public class FuzzyHierarchyFilterRowContainer
extends Object
implements DataArray

Author:

Kilian Thiel, University of Konstanz

Constructor Summary

FuzzyHierarchyFilterRowContainer(DataArray rc, int hierarchiyLevel)
Creates an instance of FuzzyHierarchyFilterRowContainer with given DataArray and hierarchy level.

Method Summary

DataTableSpec	getDataTableSpec() Get the table spec corresponding the the rows.
int	getFirstRowNumber()
int	getHierarchyLevel()
int	getMaxLevel()
DataCell	getMaxValue(int colIdx)
DataCell	getMinValue(int colIdx)
DataRow	getRow(int idx) Returns the row from the container with index idx.
Set<DataCell>	getValues(int colIdx) Returns a set of all different values seen in the specified column.
RowIterator	iterator() Returns a row iterator which returns each row one-by-one from the table.
void	setHierarchyLevel(int level)
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

FuzzyHierarchyFilterRowContainer

public FuzzyHierarchyFilterRowContainer(DataArray rc,
                                        int hierarchiyLevel)
                                 throws IllegalStateException

Creates an instance of FuzzyHierarchyFilterRowContainer with given DataArray and hierarchy level.

Parameters:

rc - DataArray to set

hierarchiyLevel - hierarchy level to set

Throws:

IllegalStateException - if hierarchy level of hierarchical fuzzy data is less than 1

Method Detail

getHierarchyLevel

public int getHierarchyLevel()

Returns:

the hierarchyLevel

setHierarchyLevel

public void setHierarchyLevel(int level)

Parameters:

level - the hierarchyLevel to set

getMaxLevel

public int getMaxLevel()

Returns:

the maxLevel

getRow

public DataRow getRow(int idx)

Returns the row from the container with index idx. Index starts at zero and must be less than the size of the container (which could be less than the number of rows requested at construction time as the table could be shorter than that). The original row number in the table can be reconstructed by adding the index to the result of the DataArray.getFirstRowNumber() method.

Specified by:

getRow in interface DataArray

Parameters:

idx - the index of the row to return (must be between 0 and size of the row container)

Returns:

the row from the container with index idx

getValues

public Set<DataCell> getValues(int colIdx)

Returns a set of all different values seen in the specified column. Will always return null if the idx doesn't specifiy a column of type StringCell (or derived from that). The list will be in the order the values appeared in the rows read in. It contains only the values showing in these rows, the complete table may contain more values. The list doesn't contain "missing value" cells.

Specified by:

getValues in interface DataArray

Parameters:

colIdx - the index of the column to return the possible values for

Returns:

a list of possible values of the specified column in the order they appear in the rows read. The list includes only values seen in the rows stored in the container. Returns null for non-string columns.

getMinValue

public DataCell getMinValue(int colIdx)

Specified by:

getMinValue in interface DataArray

Parameters:

colIdx - the index of the column to return the min value for

Returns:

the minimum value seen in the specified column in the rows read in (the entire table could contain a smaller value). Or the min value set with the corresponding setter method. Will return null if the number of rows actually stored is zero, or the column contains only missing cells.

getMaxValue

public DataCell getMaxValue(int colIdx)

Specified by:

getMaxValue in interface DataArray

Parameters:

colIdx - the index of the column to return the max value for

Returns:

the maximum value seen in the specified column in the rows read in (the entire table could contain a larger value). Or the max value set with the corresponding setter method. Will return null if the number of rows actually stored is zero, or the column contains only missing cells.

size

public int size()

Specified by:

size in interface DataArray

Returns:

the size of the container, i.e. the number of rows actually stored. Could be different from the number fo rows requested, if the table is shorter than the sum of the first row and the number of rows specified to the constructor.

getFirstRowNumber

public int getFirstRowNumber()

Specified by:

getFirstRowNumber in interface DataArray

Returns:

the number of the row with index 0 - i.e. the original row number in the underlying data table of any row with index i in the container can be reconstructed by i + getFirstRowNumber().

iterator

public RowIterator iterator()

Returns a row iterator which returns each row one-by-one from the table.

Specified by:

iterator in interface Iterable<DataRow>

Specified by:

iterator in interface DataArray

Specified by:

iterator in interface DataTable

Returns:

an iterator to traverse the container. Unfortunately the iterator returns objects, i.e. you would have to use a typecast to DataRow to obtain the real type of the object.

See Also:

DataRow

getDataTableSpec

public DataTableSpec getDataTableSpec()

Get the table spec corresponding the the rows. The domain information is ensured to be included, i.e. for all string compatible columns it contains the possible values and for all double compatible columns it contains lower and upper bounds.

Specified by:

getDataTableSpec in interface DataArray

Specified by:

getDataTableSpec in interface DataTable

Returns:

the table spec belonging to the rows stored.