org.deidentifier.arx

Class DataHandleOutput

java.lang.Object

org.deidentifier.arx.DataHandle

org.deidentifier.arx.DataHandleOutput

public class DataHandleOutput
extends DataHandle

An implementation of the class DataHandle for output data.

Field Summary

Fields inherited from class org.deidentifier.arx.DataHandle

columnToDataType, definition, header, headerMap, node, registry, subset

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DataHandleOutput(ARXResult result, org.deidentifier.arx.DataRegistry registry, org.deidentifier.arx.framework.data.DataManager manager, org.deidentifier.arx.framework.data.Data outputGeneralized, org.deidentifier.arx.framework.data.Data outputMicroaggregated, ARXLattice.ARXNode node, DataDefinition definition, ARXConfiguration config) Instantiates a new handle.
protected	DataHandleOutput(ARXResult result, org.deidentifier.arx.DataRegistry registry, org.deidentifier.arx.framework.data.DataManager manager, java.io.InputStream stream, ARXLattice.ARXNode node, DataDefinition definition, ARXConfiguration config) Instantiates a new handle.

Method Summary

Modifier and Type	Method and Description
protected void	doRelease() Releases all resources.
java.lang.String	getAttributeName(int col) Returns the name of the specified column.
protected DataType<?>[]	getColumnToDataType() Creates the data type array.
protected boolean[]	getColumnToSuppressionStatus(ARXConfiguration config, DataDefinition definition) Returns the suppression status for each attribute
protected ARXConfiguration	getConfiguration() Returns the ARXConfiguration that is currently being used, null if this is an input handle
DataType<?>	getDataType(java.lang.String attribute) Returns the according data type.
protected java.lang.String[]	getDistinctValues(int col, boolean ignoreSuppression, DataHandleInternal.InterruptHandler handler) Gets the distinct values.
int	getGeneralization(java.lang.String attribute) Returns the generalization level for the attribute.
protected org.deidentifier.arx.framework.data.DataMatrix	getInputBuffer() Returns the input buffer
int	getNumColumns() Returns the number of columns in the dataset.
int	getNumRows() Returns the number of rows in the dataset.
protected org.deidentifier.arx.framework.data.Data	getOutputBufferGeneralized() Returns the output buffer
protected org.deidentifier.arx.framework.data.Data	getOutputBufferMicroaggregated() Returns the output buffer
StatisticsBuilder	getStatistics() Returns an object providing access to basic descriptive statistics about the data represented by this handle.
java.lang.String	getValue(int row, int col) Returns the value in the specified cell.
protected int	getValueIdentifier(int column, java.lang.String value) Returns the internal value identifier
protected int	internalCompare(int row1, int row2, int[] columns, boolean ascending) A negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.
protected int	internalGetEncodedValue(int row, int col, boolean ignoreSuppression) Internal representation of get encoded value.
protected java.lang.String	internalGetValue(int row, int col, boolean ignoreSuppression) Gets the value internal.
protected boolean	internalIsOutlier(int row) Returns whether the given row is an outlier.
protected boolean	internalIsOutlier(int row, int[] columns) Returns whether this is an outlier regarding the given columns.
protected boolean	internalReplace(int column, java.lang.String original, java.lang.String replacement) Internal replacement method.
protected void	internalSwap(int row1, int row2) Swap internal.
protected boolean	isAnonymous() Returns whether the data represented by this handle is anonymous
boolean	isOptimized() Has this handle been optimized with local recoding?
java.util.Iterator<java.lang.String[]>	iterator() Iterator.
boolean	replace(int column, java.lang.String original, java.lang.String replacement) Replaces the original value with the replacement in the given column.
protected void	setOptimized(boolean optimized) Marks this handle as optimized
protected void	updateDataTypes(int[] transformation) Used to update data types after local recoding
void	write(java.io.OutputStream out) Internal method: writes some data into the output stream

Methods inherited from class org.deidentifier.arx.DataHandle

checkColumn, checkColumns, checkReleased, checkRow, getBaseDataType, getColumnIndexOf, getDate, getDefinition, getDistinctValues, getDouble, getFloat, getInt, getLong, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getMatchingDataTypes, getNonConformingValues, getNumConformingValues, getRegistry, getRiskEstimator, getRiskEstimator, getRiskEstimator, getRiskEstimator, getRiskEstimator, getRiskEstimator, getRiskEstimator, getTransformation, getView, isOutlier, isReleased, isSuppressed, release, render, save, save, save, save, save, save, save, save, save, setHeader, setRegistry, setView, sort, sort, sort, sort, swap

Methods inherited from class java.lang.Object

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

Constructor Detail

DataHandleOutput

protected DataHandleOutput(ARXResult result,
                           org.deidentifier.arx.DataRegistry registry,
                           org.deidentifier.arx.framework.data.DataManager manager,
                           org.deidentifier.arx.framework.data.Data outputGeneralized,
                           org.deidentifier.arx.framework.data.Data outputMicroaggregated,
                           ARXLattice.ARXNode node,
                           DataDefinition definition,
                           ARXConfiguration config)

Instantiates a new handle.

Parameters:

result -

registry -

manager -

outputGeneralized -

outputMicroaggregated -

node -

definition -

config -

DataHandleOutput

protected DataHandleOutput(ARXResult result,
                           org.deidentifier.arx.DataRegistry registry,
                           org.deidentifier.arx.framework.data.DataManager manager,
                           java.io.InputStream stream,
                           ARXLattice.ARXNode node,
                           DataDefinition definition,
                           ARXConfiguration config)
                    throws java.lang.ClassNotFoundException,
                           java.io.IOException

Instantiates a new handle.

Parameters:

result -

registry -

manager -

stream -

node -

definition -

config -

Throws:

java.io.IOException

java.lang.ClassNotFoundException

Method Detail

getAttributeName

public java.lang.String getAttributeName(int col)

Description copied from class: DataHandle

Returns the name of the specified column.

Specified by:

getAttributeName in class DataHandle

Parameters:

col - The column index

Returns:

the attribute name

getDataType

public DataType<?> getDataType(java.lang.String attribute)

Description copied from class: DataHandle

Returns the according data type.

Overrides:

getDataType in class DataHandle

Parameters:

attribute - the attribute

Returns:

the data type

getGeneralization

public int getGeneralization(java.lang.String attribute)

Description copied from class: DataHandle

Returns the generalization level for the attribute.

Specified by:

getGeneralization in class DataHandle

Parameters:

attribute - the attribute

Returns:

the generalization

getNumColumns

public int getNumColumns()

Description copied from class: DataHandle

Returns the number of columns in the dataset.

Specified by:

getNumColumns in class DataHandle

Returns:

the num columns

getNumRows

public int getNumRows()

Description copied from class: DataHandle

Returns the number of rows in the dataset.

Specified by:

getNumRows in class DataHandle

Returns:

the num rows

getStatistics

public StatisticsBuilder getStatistics()

Description copied from class: DataHandle

Returns an object providing access to basic descriptive statistics about the data represented by this handle.

Specified by:

getStatistics in class DataHandle

Returns:

the statistics

getValue

public java.lang.String getValue(int row,
                                 int col)

Description copied from class: DataHandle

Returns the value in the specified cell.

Specified by:

getValue in class DataHandle

Parameters:

row - The cell's row index

col - The cell's column index

Returns:

the value

isOptimized

public boolean isOptimized()

Description copied from class: DataHandle

Has this handle been optimized with local recoding?

Overrides:

isOptimized in class DataHandle

Returns:

iterator

public java.util.Iterator<java.lang.String[]> iterator()

Iterator.

Specified by:

iterator in class DataHandle

Returns:

the iterator

replace

public boolean replace(int column,
                       java.lang.String original,
                       java.lang.String replacement)

Description copied from class: DataHandle

Replaces the original value with the replacement in the given column. Only supported by handles for input data.

Overrides:

replace in class DataHandle

Parameters:

column - the column

original - the original

replacement - the replacement

Returns:

Whether the original value was found

write

public void write(java.io.OutputStream out)
           throws java.io.IOException

Internal method: writes some data into the output stream

Parameters:

out -

Throws:

java.io.IOException

doRelease

protected void doRelease()

Releases all resources.

Specified by:

doRelease in class DataHandle

getColumnToDataType

protected DataType<?>[] getColumnToDataType()

Creates the data type array.

Specified by:

getColumnToDataType in class DataHandle

Returns:

getColumnToSuppressionStatus

protected boolean[] getColumnToSuppressionStatus(ARXConfiguration config,
                                                 DataDefinition definition)

Returns the suppression status for each attribute

Parameters:

config -

definition -

Returns:

getConfiguration

protected ARXConfiguration getConfiguration()

Description copied from class: DataHandle

Returns the ARXConfiguration that is currently being used, null if this is an input handle

Specified by:

getConfiguration in class DataHandle

Returns:

getDistinctValues

protected java.lang.String[] getDistinctValues(int col,
                                               boolean ignoreSuppression,
                                               DataHandleInternal.InterruptHandler handler)

Gets the distinct values.

Specified by:

getDistinctValues in class DataHandle

Parameters:

col - the column

ignoreSuppression -

handler -

Returns:

the distinct values

getInputBuffer

protected org.deidentifier.arx.framework.data.DataMatrix getInputBuffer()

Returns the input buffer

Returns:

getOutputBufferGeneralized

protected org.deidentifier.arx.framework.data.Data getOutputBufferGeneralized()

Returns the output buffer

Returns:

getOutputBufferMicroaggregated

protected org.deidentifier.arx.framework.data.Data getOutputBufferMicroaggregated()

Returns the output buffer

Returns:

getValueIdentifier

protected int getValueIdentifier(int column,
                                 java.lang.String value)

Description copied from class: DataHandle

Returns the internal value identifier

Specified by:

getValueIdentifier in class DataHandle

Returns:

internalCompare

protected int internalCompare(int row1,
                              int row2,
                              int[] columns,
                              boolean ascending)

A negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second. It uses the specified data types for comparison if no generalization was applied, otherwise it uses string comparison.

Overrides:

internalCompare in class DataHandle

Parameters:

row1 -

row2 -

columns -

ascending -

Returns:

the int

internalGetEncodedValue

protected int internalGetEncodedValue(int row,
                                      int col,
                                      boolean ignoreSuppression)

Description copied from class: DataHandle

Internal representation of get encoded value. Returns -1 for suppressed values.

Specified by:

internalGetEncodedValue in class DataHandle

Parameters:

row - the row

col - the col

Returns:

the value

internalGetValue

protected java.lang.String internalGetValue(int row,
                                            int col,
                                            boolean ignoreSuppression)

Gets the value internal.

Specified by:

internalGetValue in class DataHandle

Parameters:

row - the row

col - the col

Returns:

the value internal

internalIsOutlier

protected boolean internalIsOutlier(int row)

Returns whether the given row is an outlier.

Parameters:

row -

Returns:

internalIsOutlier

protected boolean internalIsOutlier(int row,
                                    int[] columns)

Description copied from class: DataHandle

Returns whether this is an outlier regarding the given columns. If no columns have been specified, true will be returned.

Specified by:

internalIsOutlier in class DataHandle

Returns:

internalReplace

protected boolean internalReplace(int column,
                                  java.lang.String original,
                                  java.lang.String replacement)

Description copied from class: DataHandle

Internal replacement method.

Specified by:

internalReplace in class DataHandle

Parameters:

column - the column

original - the original

replacement - the replacement

Returns:

true, if successful

internalSwap

protected void internalSwap(int row1,
                            int row2)

Swap internal.

Parameters:

row1 - the row1

row2 - the row2

isAnonymous

protected boolean isAnonymous()

Description copied from class: DataHandle

Returns whether the data represented by this handle is anonymous

Overrides:

isAnonymous in class DataHandle

Returns:

setOptimized

protected void setOptimized(boolean optimized)

Marks this handle as optimized

Parameters:

optimized -

updateDataTypes

protected void updateDataTypes(int[] transformation)

Used to update data types after local recoding

Parameters:

transformation -