Coverage report

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org.apache.commons.configuration.web.BaseWebConfiguration
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 1   
 /*
 2   
  * Copyright 2004-2005 The Apache Software Foundation.
 3   
  *
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  * Licensed under the Apache License, Version 2.0 (the "License")
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  * you may not use this file except in compliance with the License.
 6   
  * You may obtain a copy of the License at
 7   
  *
 8   
  *     http://www.apache.org/licenses/LICENSE-2.0
 9   
  *
 10   
  * Unless required by applicable law or agreed to in writing, software
 11   
  * distributed under the License is distributed on an "AS IS" BASIS,
 12   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   
  * See the License for the specific language governing permissions and
 14   
  * limitations under the License.
 15   
  */
 16   
 package org.apache.commons.configuration.web;
 17   
 
 18   
 import org.apache.commons.configuration.AbstractConfiguration;
 19   
 
 20   
 /**
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  * <p>
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  * An abstract base class for all web configurations.
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  * </p>
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  * <p>
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  * This class implements common functionality used by all web based
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  * configurations. E.g. some methods are not supported by configurations of this
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  * type, so they throw a <code>UnsupportedOperationException</code> exception.
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  * </p>
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  *
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  * @author Oliver Heger
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  * @version $Id: BaseWebConfiguration.java 314999 2005-10-12 19:01:43Z oheger $
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  * @since 1.2
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  */
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 abstract class BaseWebConfiguration extends AbstractConfiguration
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 {
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     /**
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      * Checks if this configuration is empty. This implementation makes use of
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      * the <code>getKeys()</code> method (which must be defined by concrete
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      * sub classes) to find out whether properties exist.
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      *
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      * @return a flag whether this configuration is empty
 42   
      */
 43   
     public boolean isEmpty()
 44   
     {
 45  30 
         return !getKeys().hasNext();
 46   
     }
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 48   
     /**
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      * Checks whether the specified key is stored in this configuration.
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      *
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      * @param key the key
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      * @return a flag whether this key exists in this configuration
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      */
 54   
     public boolean containsKey(String key)
 55   
     {
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         return getProperty(key) != null;
 57   
     }
 58   
 
 59   
     /**
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      * Removes the property with the given key. <strong>This operation is not
 61   
      * supported and will throw an UnsupportedOperationException.</strong>
 62   
      *
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      * @param key the key of the property to be removed
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      * @throws UnsupportedOperationException because this operation is not
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      * allowed
 66   
      */
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     public void clearProperty(String key)
 68   
     {
 69  15 
         throw new UnsupportedOperationException("Read only configuration");
 70   
     }
 71   
 
 72   
     /**
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      * Adds a property to this configuration. <strong>This operation is not
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      * supported and will throw an UnsupportedOperationException.</strong>
 75   
      *
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      * @param key the key of the property
 77   
      * @param obj the value to be added
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      * @throws UnsupportedOperationException because this operation is not
 79   
      * allowed
 80   
      */
 81   
     protected void addPropertyDirect(String key, Object obj)
 82   
     {
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         throw new UnsupportedOperationException("Read only configuration");
 84   
     }
 85   
 }

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