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* Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
package javax.security.auth.login;
/**
* This class defines the <i>Service Provider Interface</i> (<b>SPI</b>)
* for the <code>Configuration</code> class.
* All the abstract methods in this class must be implemented by each
* service provider who wishes to supply a Configuration implementation.
*
* <p> Subclass implementations of this abstract class must provide
* a public constructor that takes a <code>Configuration.Parameters</code>
* object as an input parameter. This constructor also must throw
* an IllegalArgumentException if it does not understand the
* <code>Configuration.Parameters</code> input.
*
*
* @since 1.6
*/
public abstract class ConfigurationSpi {
/**
* Retrieve the AppConfigurationEntries for the specified <i>name</i>.
*
* <p>
*
* @param name the name used to index the Configuration.
*
* @return an array of AppConfigurationEntries for the specified
* <i>name</i>, or null if there are no entries.
*/
protected abstract AppConfigurationEntry[] engineGetAppConfigurationEntry
(String name);
/**
* Refresh and reload the Configuration.
*
* <p> 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 <code>refresh</code> may cause the file to be re-read.
*
* <p> The default implementation of this method does nothing.
* This method should be overridden if a refresh operation is supported
* by the implementation.
*
* @exception SecurityException if the caller does not have permission
* to refresh its Configuration.
*/
protected void engineRefresh() { }
}