Class OsgiPreferenceMetadataStore
- java.lang.Object
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- org.eclipse.core.runtime.preferences.OsgiPreferenceMetadataStore
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- All Implemented Interfaces:
IPreferenceMetadataStore
public final class OsgiPreferenceMetadataStore extends Object implements IPreferenceMetadataStore
The preference store implementation that uses OSGi preference node as an enclosed storage.- Since:
- 3.8
- See Also:
IEclipsePreferences
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Constructor Summary
Constructors Constructor Description OsgiPreferenceMetadataStore(IEclipsePreferences preferences)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <V> boolean
handles(Class<V> valueType)
Checks if this value type can be handled by this preference store.<V> V
load(PreferenceMetadata<V> preference)
Loads the value of specified preference from an enclosed storage.<V> void
save(V value, PreferenceMetadata<V> preference)
Saves the value of specified preference to the enclosed storage.
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Constructor Detail
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OsgiPreferenceMetadataStore
public OsgiPreferenceMetadataStore(IEclipsePreferences preferences)
- Parameters:
preferences
- the OSGi preference node, must not benull
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Method Detail
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handles
public <V> boolean handles(Class<V> valueType)
Description copied from interface:IPreferenceMetadataStore
Checks if this value type can be handled by this preference store.- Specified by:
handles
in interfaceIPreferenceMetadataStore
- Type Parameters:
V
- the value type for the preference- Parameters:
valueType
- the value type to be checked- Returns:
- true if this value type can be handled by this preference store and false otherwise
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load
public <V> V load(PreferenceMetadata<V> preference)
Description copied from interface:IPreferenceMetadataStore
Loads the value of specified preference from an enclosed storage. If the value is not found returns the preference default value.- Specified by:
load
in interfaceIPreferenceMetadataStore
- Type Parameters:
V
- the value type for the preference- Parameters:
preference
- the preference metadata, must not benull
.- Returns:
- the preference value or default value if preference is unknown
- See Also:
IPreferenceMetadataStore.handles(Class)
,PreferenceMetadata
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save
public <V> void save(V value, PreferenceMetadata<V> preference)
Description copied from interface:IPreferenceMetadataStore
Saves the value of specified preference to the enclosed storage.- Specified by:
save
in interfaceIPreferenceMetadataStore
- Type Parameters:
V
- the value type for the preference- Parameters:
value
- to be saved, must not benull
.preference
- the preference metadata, must not benull
.- See Also:
IPreferenceMetadataStore.handles(Class)
,PreferenceMetadata
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