uk.ac.ed.inf.utils
Class TableMap

java.lang.Object
  uk.ac.ed.inf.utils.TableMap

public class TableMap
extends java.lang.Object

A table map is a map containing relations [key > list of values] [value > list of keys]

Version:

3 Jun 2008

Author:

Luna De Ferrari luna.deferrari-at-ed.ac.uk

Constructor Summary

TableMap()
Initialises the object with an empty 'one to many' map.

TableMap(java.util.Vector<java.lang.String> keys, java.util.Vector<java.lang.String> values)
Initialise with a list of key-value pairs

Method Summary

void	addKeyValue(java.lang.String key, java.lang.String value) Add a key/value set to the one to many map
boolean	containsKey(java.lang.String key)
boolean	containsKeyValue(java.lang.String key, java.lang.String value)
boolean	containsValue(java.lang.String value)
void	deleteKeyValue(java.lang.String key, java.lang.String value) Delete a key-value pair from the one to many map
java.util.Set<java.lang.String>	getKeys()
int	getKeyValuePairSize() Get the number of key-value pairs in the map
java.util.Set<java.lang.String>	getKeyValues(java.lang.String key)
OneToManyMap	getMap() Get the keys to values map
OneToManyMap	getReverseMap() Get the values to keys map
java.util.Set<java.lang.String>	getValues()

Methods inherited from class java.lang.Object

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

Constructor Detail

TableMap

public TableMap()

Initialises the object with an empty 'one to many' map.

TableMap

public TableMap(java.util.Vector<java.lang.String> keys,
                java.util.Vector<java.lang.String> values)

Initialise with a list of key-value pairs

Parameters:

keys - the list of keys

values - the list of values (the value for each key in the keys list)

Method Detail

addKeyValue

public void addKeyValue(java.lang.String key,
                        java.lang.String value)

Add a key/value set to the one to many map

Parameters:

key -

value -

containsKey

public boolean containsKey(java.lang.String key)

containsKeyValue

public boolean containsKeyValue(java.lang.String key,
                                java.lang.String value)

containsValue

public boolean containsValue(java.lang.String value)

deleteKeyValue

public void deleteKeyValue(java.lang.String key,
                           java.lang.String value)

Delete a key-value pair from the one to many map

Parameters:

key -

value -

getKeys

public java.util.Set<java.lang.String> getKeys()

Returns:

the set of keys

getKeyValuePairSize

public int getKeyValuePairSize()

Get the number of key-value pairs in the map

Returns:

the number of key-value pairs in the map (each key can have more than one value)

getKeyValues

public java.util.Set<java.lang.String> getKeyValues(java.lang.String key)

getMap

public OneToManyMap getMap()

Get the keys to values map

Returns:

the map containing the data (each key and its values vector)

getReverseMap

public OneToManyMap getReverseMap()

Get the values to keys map

Returns:

the map containing the data (each value and the vector of keys that have that value)

getValues

public java.util.Set<java.lang.String> getValues()

Returns:

the set of values