Package jmri.implementation

Class AbstractInstanceInitializer

java.lang.Object

jmri.implementation.AbstractInstanceInitializer

All Implemented Interfaces:

InstanceInitializer

Direct Known Subclasses:

DebuggerInstanceInitializer, DecoderIndexFile.Initializer, DefaultCatalogTreeManager.Initializer, DefaultIdTagManager.Initializer, DefaultInstanceInitializer, DeferringProgrammerManager.Initializer, EngineModels.Initializer, ImageIndexEditor.Initializer, JmriUserPreferencesManager.Initializer, LogixNG_AnalogInstanceInitializer, LogixNG_DigitalInstanceInitializer, LogixNG_InstanceInitializer, LogixNG_StringInstanceInitializer, NameFile.Initializer, PermissionInstanceInitializer, Server.Initializer, ServerFrame.Initializer, ShutDownManagerInitializer, TrackerTableAction.Initializer, WiThrottlePreferences.Initializer

public class AbstractInstanceInitializer
extends java.lang.Object
implements InstanceInitializer

Constructor Summary

Constructors

Constructor	Description
AbstractInstanceInitializer()

Method Summary

Modifier and Type	Method	Description
<T> java.lang.Object	getDefault(java.lang.Class<T> type)	The default implementation always throws an IllegalArgumentException.
java.util.Set<java.lang.Class<?>>	getInitalizes()	The default implementation returns an empty set.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInstanceInitializer

public AbstractInstanceInitializer()

Method Detail

getDefault

@Nonnull
public <T> java.lang.Object getDefault(@Nonnull
                                       java.lang.Class<T> type)

The default implementation always throws an IllegalArgumentException. If called by an overriding method, the last line of the overriding method should be return super.getDefault(type);. Provide a default instance of the given class.

Note calling this method twice for the same class should not be expected to return the same instance; however, there is no guarantee that the same instance will not be returned for two calls to this method.

Specified by:

getDefault in interface InstanceInitializer

Type Parameters:

T - the class to get the default for

Parameters:

type - the class to get the default for

Returns:

the newly created default for the given class

getInitalizes

@Nonnull
public java.util.Set<java.lang.Class<?>> getInitalizes()

The default implementation returns an empty set. Get the set of classes for which this InstanceInitializer can provide default instances for.

Specified by:

getInitalizes in interface InstanceInitializer

Returns:

the set of classes this InstanceInitalizer supports; if empty, InstanceInitializer.getDefault(java.lang.Class) will never be called.