Java™ Platform
Standard Ed. 6
Class ConfigurationSpi

  extended by

public abstract class ConfigurationSpi
extends Object

This class defines the Service Provider Interface (SPI) for the Configuration class. All the abstract methods in this class must be implemented by each service provider who wishes to supply a Configuration implementation.

Subclass implementations of this abstract class must provide a public constructor that takes a Configuration.Parameters object as an input parameter. This constructor also must throw an IllegalArgumentException if it does not understand the Configuration.Parameters input.


Constructor Summary
Method Summary
protected abstract  AppConfigurationEntry[] engineGetAppConfigurationEntry(String name)
          Retrieve the AppConfigurationEntries for the specified name.
protected  void engineRefresh()
          Refresh and reload the Configuration.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public ConfigurationSpi()
Method Detail


protected abstract AppConfigurationEntry[] engineGetAppConfigurationEntry(String name)
Retrieve the AppConfigurationEntries for the specified name.

name - the name used to index the Configuration.
an array of AppConfigurationEntries for the specified name, or null if there are no entries.


protected void engineRefresh()
Refresh and reload the Configuration.

This method causes this Configuration object to refresh/reload its contents in an implementation-dependent manner. For example, if this Configuration object stores its entries in a file, calling refresh may cause the file to be re-read.

The default implementation of this method does nothing. This method should be overridden if a refresh operation is supported by the implementation.

SecurityException - if the caller does not have permission to refresh its Configuration.

Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.