de.unikassel.android.sdcframework.preferences
Class SinglePreferenceImpl<T>

java.lang.Object
  de.unikassel.android.sdcframework.preferences.SinglePreferenceImpl<T>

Type Parameters:

T - the type of the preference value

All Implemented Interfaces:

SinglePreference<T>

Direct Known Subclasses:

BooleanPreference, IntegerPreference, LongPreference, PriorityLevelPreference, StringPreference

public abstract class SinglePreferenceImpl<T>
extends Object
implements SinglePreference<T>

Generic abstract base class for a single preference type.

The key for the Android shared preferences will be constructed from the keyPrefix and keySuffix values provided in the constructor call.

Field Summary

private T	defaultValue Default preference value
private String	key The key value for the Android preferences

Constructor Summary

	SinglePreferenceImpl(String keyPrefix, String keySuffix, T defaultValue) Constructor
protected	SinglePreferenceImpl(String key, T defaultValue) Constructor

Method Summary

T	getDefault() Getter for the default value
String	getKey() Getter for the preference key
void	setDefault(T defaultValue) Setter for the default value
boolean	testForKey(String key) Method to test for a preferences key support

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.unikassel.android.sdcframework.preferences.facade.SinglePreference

getConfiguration

Field Detail

defaultValue

private T defaultValue

Default preference value

key

private final String key

The key value for the Android preferences

Constructor Detail

SinglePreferenceImpl

protected SinglePreferenceImpl(String key,
                               T defaultValue)

Constructor

Parameters:

key - the key value

defaultValue - the default value

SinglePreferenceImpl

public SinglePreferenceImpl(String keyPrefix,
                            String keySuffix,
                            T defaultValue)

Constructor

Parameters:

keyPrefix - the key prefix

keySuffix - the key suffix

defaultValue - the default value

Method Detail

getKey

public final String getKey()

Description copied from interface: SinglePreference

Getter for the preference key

Specified by:

getKey in interface SinglePreference<T>

Returns:

the preference key

getDefault

public final T getDefault()

Description copied from interface: SinglePreference

Getter for the default value

Specified by:

getDefault in interface SinglePreference<T>

Returns:

the default value

setDefault

public final void setDefault(T defaultValue)

Description copied from interface: SinglePreference

Setter for the default value

Specified by:

setDefault in interface SinglePreference<T>

Parameters:

defaultValue - the default value to set

testForKey

public boolean testForKey(String key)

Description copied from interface: SinglePreference

Method to test for a preferences key support

Specified by:

testForKey in interface SinglePreference<T>

Parameters:

key - the key to test for

Returns:

true if this key is supported, false otherwise