xades4j.utils
Class PropertiesSet<T>

java.lang.Object
  xades4j.utils.PropertiesSet<T>

public class PropertiesSet<T>
extends Object

A generic bag of properties used to store properties that apply to a specific target (data object descriptions, signature properties collector, signed data objects). The properties are organized by type (class).

Author:

Luís

Constructor Summary

PropertiesSet(int initialNPropTypes)
Initializes the property bag with the given initial diferent property types.

Method Summary

void	add(T prop) Adds a property to the bag.
Collection<T>	getProperties() Gets the properties in the bag.
boolean	isEmpty() Indicates whether the bag has any properties.
void	put(T prop) Puts a property in the bag.
void	remove(T prop) Removes a property from the bag.

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertiesSet

public PropertiesSet(int initialNPropTypes)

Initializes the property bag with the given initial diferent property types.

Parameters:

initialNPropTypes - the initial number of different property types.

Method Detail

put

public void put(T prop)

Puts a property in the bag. The put operation doesn't allow repeated property types. If a property of this type was previously added an exception is thrown.

Parameters:

prop - the property

Throws:

NullPointerException - if prop is null

PropertyTargetException - if a property of this type was previously added

add

public void add(T prop)

Adds a property to the bag. The add operation allows multiple properties of the same type but not repeated instances.

Parameters:

prop - the property

Throws:

NullPointerException - if prop is null

PropertyTargetException - if the given property (instance) is already present in the bag

remove

public void remove(T prop)

Removes a property from the bag.

Parameters:

prop - the property to be removed

Throws:

NullPointerException - if the property is null

IllegalStateException - if the property is not present

isEmpty

public boolean isEmpty()

Indicates whether the bag has any properties.

Returns:

true if the bag has no properties

getProperties

public Collection<T> getProperties()

Gets the properties in the bag.

Returns:

un unmodifiable collection of properties