de.tud.ke.mrapp.rulelearning.core.model

Class AttributeHashMap

java.lang.Object

de.tud.ke.mrapp.rulelearning.core.model.AttributeHashMap

All Implemented Interfaces:

AttributeMap, java.io.Serializable

public class AttributeHashMap
extends java.lang.Object
implements AttributeMap

An AttributeMap that uses a hash map for storing attribute-value mappings.

Since:

0.1.0

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AttributeHashMap() Creates an empty attribute map.
AttributeHashMap(int size) Creates an empty attribute map with a specific size.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
@Nullable java.lang.Double	getValue(int attributeIndex) Returns the value that is associated with the Attribute with a specific index.
int	hashCode()
void	putValue(@NotNull Attribute attribute, double value) Adds a new attribute-value mapping to the attribute map.
void	putValue(int attributeIndex, double value) Adds a new attribute-value mapping to the attribute map.
int	size() Returns the number of attribute-value mappings that are contained by the map.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.tud.ke.mrapp.rulelearning.core.model.AttributeMap

contains, contains, getValue, isEmpty

Constructor Detail

AttributeHashMap

public AttributeHashMap()

Creates an empty attribute map.

AttributeHashMap

public AttributeHashMap(int size)

Creates an empty attribute map with a specific size.

Parameters:

size - The size of the attribute map

Method Detail

putValue

public void putValue(@NotNull
                     @NotNull Attribute attribute,
                     double value)

Adds a new attribute-value mapping to the attribute map.

Parameters:

attribute - The attribute, the value is associated with

value - The value to be added

putValue

public void putValue(int attributeIndex,
                     double value)

Adds a new attribute-value mapping to the attribute map.

Parameters:

attributeIndex - The index of the attribute, the value is associated with

value - The value to be added

size

public int size()

Description copied from interface: AttributeMap

Returns the number of attribute-value mappings that are contained by the map.

Specified by:

size in interface AttributeMap

Returns:

The number of attribute-value mappings that are contained by the map

getValue

@Nullable
public @Nullable java.lang.Double getValue(int attributeIndex)

Description copied from interface: AttributeMap

Returns the value that is associated with the Attribute with a specific index.

Specified by:

getValue in interface AttributeMap

Parameters:

attributeIndex - The index of the attribute for which the associated value should be returned

Returns:

The value that is associated with the given attribute or null, if no such value is available

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object