org.apache.clerezza.utils.imageprocessing.metadataprocessing

Class MetaData<E extends DataSet>

java.lang.Object

org.apache.clerezza.utils.imageprocessing.metadataprocessing.MetaData<E>

All Implemented Interfaces:

Iterable<List<E>>

public class MetaData<E extends DataSet>
extends Object
implements Iterable<List<E>>

This class represents a MetaData data structure of some medium (image, audio, etc.).

Author:

daniel

Constructor Summary

Constructors

Constructor and Description
MetaData() Creates a new MetaData object.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(E dataSet) Adds a data set to the data structure.
void	clear() Removes all meta data.
boolean	containsKey(String key) Checks if there is a data set with the specified key.
boolean	containsValue(String value) Checks if any data set contains the specified value.
List<E>	get(String key) Returns all data sets for a key.
boolean	isEmpty() Checks if this meta data contains data sets.
Iterator<List<E>>	iterator()
int	size() Returns the number of saved data sets.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MetaData

public MetaData()

Creates a new MetaData object.

Method Detail

add

public void add(E dataSet)

Adds a data set to the data structure. If a mapping for the given key already exists, then the value gets appended to the value list.

Parameters:

dataSet - the data set to add.

get

public List<E> get(String key)

Returns all data sets for a key. More formally, if this map contains a mapping from a key k to a value v such that (key==null ? k==null : key.equals(k)), then v will be part of the returned list.

Parameters:

key - the key whose associated value is to be returned.

Returns:

the list of data sets or null if none is found for given key.

clear

public void clear()

Removes all meta data.

containsKey

public boolean containsKey(String key)

Checks if there is a data set with the specified key.

Parameters:

key - the key

Returns:

true is there is a mapping for the specified key, false otherwise.

containsValue

public boolean containsValue(String value)

Checks if any data set contains the specified value. The values are considered the same if they are equal according to the String equals method. More formally, returns true if and only if this map contains at least one mapping to a value v such that (value==null ? v==null : value.equals(v)).

Parameters:

value - the value to check for.

Returns:

true if the value is saved in any data set, false otherwise.

isEmpty

public boolean isEmpty()

Checks if this meta data contains data sets.

Returns:

true if there are no key to data set mappings, false otherwise.

size

public int size()

Returns the number of saved data sets.

Returns:

the number of saved data sets.

toString

public String toString()

Overrides:

toString in class Object

iterator

public Iterator<List<E>> iterator()

Specified by:

iterator in interface Iterable<List<E extends DataSet>>