de.lmu.ifi.dbs.elki.data
Class AbstractNumberVector<V extends AbstractNumberVector<V,N>,N extends Number>

java.lang.Object
  de.lmu.ifi.dbs.elki.data.AbstractDatabaseObject
      de.lmu.ifi.dbs.elki.data.AbstractNumberVector<V,N>

Type Parameters:

V - the concrete type of this AbstractNumberVector

N - the type of number, this AbstractNumberVector consists of (i.e., a AbstractNumberVector v of type V and dimensionality d is an element of Nd)

All Implemented Interfaces:

DatabaseObject, FeatureVector<V,N>, NumberVector<V,N>, SpatialComparable, SpatialObject

Direct Known Subclasses:

BitVector, DoubleVector, FloatVector, SparseFloatVector

public abstract class AbstractNumberVector<V extends AbstractNumberVector<V,N>,N extends Number>
extends AbstractDatabaseObject
implements NumberVector<V,N>

AbstractNumberVector is an abstract implementation of FeatureVector. Provided is an attribute separator (space), and the ID-methods as required for a DatabaseObject. The equals-method is implemented dynamically for all subclasses to satisfy the requirements as defined in DatabaseObject.equals(Object). It needs not to be overwritten except for sake of efficiency.

Author:

Arthur Zimek

Field Summary

static String

ATTRIBUTE_SEPARATOR The String to separate attribute values in a String that represents the values.

Constructor Summary

AbstractNumberVector()

Method Summary

byte	byteValue(int dimension) Returns the value in the specified dimension as byte.
boolean	equals(Object obj) An Object obj is equal to this AbstractNumberVector if it is an instance of the same runtime class and is of the identical dimensionality and the values of this AbstractNumberVector are equal to the values of obj in all dimensions, respectively.
float	floatValue(int dimension) Returns the value in the specified dimension as float.
double	getMax(int dimension) Get Maximum - implementation of the SpatialComparable interface
double	getMin(int dimension) Get Minimum - implementation of the SpatialComparable interface
int	intValue(int dimension) Returns the value in the specified dimension as int.
short	shortValue(int dimension) Returns the value in the specified dimension as short.

Methods inherited from class de.lmu.ifi.dbs.elki.data.AbstractDatabaseObject

getID, setID

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.data.NumberVector

doubleValue, getColumnVector, getRowVector, longValue, minus, multiplicate, negativeVector, newInstance, newInstance, nullVector, plus, randomInstance, randomInstance, randomInstance, scalarProduct

Methods inherited from interface de.lmu.ifi.dbs.elki.data.FeatureVector

getDimensionality, getValue, newInstance, newInstance, toString

Methods inherited from interface de.lmu.ifi.dbs.elki.data.DatabaseObject

getID, setID

Methods inherited from interface de.lmu.ifi.dbs.elki.index.tree.spatial.SpatialObject

getID

Methods inherited from interface de.lmu.ifi.dbs.elki.index.tree.spatial.SpatialComparable

getDimensionality

Field Detail

ATTRIBUTE_SEPARATOR

public static final String ATTRIBUTE_SEPARATOR

The String to separate attribute values in a String that represents the values.

See Also:

Constant Field Values

Constructor Detail

AbstractNumberVector

public AbstractNumberVector()

Method Detail

equals

public boolean equals(Object obj)

An Object obj is equal to this AbstractNumberVector if it is an instance of the same runtime class and is of the identical dimensionality and the values of this AbstractNumberVector are equal to the values of obj in all dimensions, respectively.

Specified by:

equals in interface DatabaseObject

Overrides:

equals in class Object

Parameters:

obj - another Object

Returns:

true if the specified Object is an instance of the same runtime class and is of the identical dimensionality and the values of this AbstractNumberVector are equal to the values of obj in all dimensions, respectively

getMin

public double getMin(int dimension)

Get Minimum - implementation of the SpatialComparable interface

Specified by:

getMin in interface SpatialComparable

Parameters:

dimension - the dimension for which the coordinate should be returned, where 1 ≤ dimension ≤ getDimensionality()

Returns:

the value at the specified dimension

See Also:

NumberVector.doubleValue(int)

getMax

public double getMax(int dimension)

Get Maximum - implementation of the SpatialComparable interface

Specified by:

getMax in interface SpatialComparable

Parameters:

dimension - the dimension for which the coordinate should be returned, where 1 ≤ dimension ≤ getDimensionality()

Returns:

the value at the specified dimension

See Also:

NumberVector.doubleValue(int)

byteValue

public byte byteValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as byte. Note: this might seem redundant with respect to getValue(dim).byteValue(), but usually this is much more efficient due to boxing/unboxing cost.

Specified by:

byteValue in interface NumberVector<V extends AbstractNumberVector<V,N>,N extends Number>

Parameters:

dimension - the desired dimension, where 1 ≤ dimension ≤ this.getDimensionality()

Returns:

the value in the specified dimension

floatValue

public float floatValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as float. Note: this might seem redundant with respect to getValue(dim).floatValue(), but usually this is much more efficient due to boxing/unboxing cost.

Specified by:

floatValue in interface NumberVector<V extends AbstractNumberVector<V,N>,N extends Number>

Parameters:

dimension - the desired dimension, where 1 ≤ dimension ≤ this.getDimensionality()

Returns:

the value in the specified dimension

intValue

public int intValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as int. Note: this might seem redundant with respect to getValue(dim).intValue(), but usually this is much more efficient due to boxing/unboxing cost.

Specified by:

intValue in interface NumberVector<V extends AbstractNumberVector<V,N>,N extends Number>

Parameters:

dimension - the desired dimension, where 1 ≤ dimension ≤ this.getDimensionality()

Returns:

the value in the specified dimension

shortValue

public short shortValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as short. Note: this might seem redundant with respect to getValue(dim).shortValue(), but usually this is much more efficient due to boxing/unboxing cost.

Specified by:

shortValue in interface NumberVector<V extends AbstractNumberVector<V,N>,N extends Number>

Parameters:

dimension - the desired dimension, where 1 ≤ dimension ≤ this.getDimensionality()

Returns:

the value in the specified dimension