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  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
   *
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   *
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  * General Public License Version 2 only ("GPL") or the Common
  * Development and Distribution License("CDDL") (collectively, the
  * "License"). You may not use this file except in compliance with the
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  * specific language governing permissions and limitations under the
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  * your own identifying information:
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  * Contributor(s):
  *
  * The Original Software is NetBeans. The Initial Developer of the Original
  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
  * Microsystems, Inc. All Rights Reserved.
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  * If you wish your version of this file to be governed by only the CDDL
  * or only the GPL Version 2, indicate your decision by adding
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  * under the [CDDL or GPL Version 2] license." If you do not indicate a
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  * your version of this file under either the CDDL, the GPL Version 2 or
  * to extend the choice of license to its licensees as provided above.
  * However, if you add GPL Version 2 code and therefore, elected the GPL
  * Version 2 license, then the option applies only if the new code is
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  */
 
 
 package org.netbeans.modules.i18n;
 
 
 
Abstract class which implementation's are wrappers for holders of properties resources. Typically such object is PropertiesDataObject which represents bundle of .properties files. But it can be also some object representing other type of resources e.g. subclass of ListResourceBundle class or in case of i18n-ing JSP pages object representing tag library etc.

Author(s):
Peter Zavadsky
 
 public abstract class ResourceHolder {
    
    
Instance of resource bundle object.
 
     protected DataObject resource;
    
    
Classes which instances as resources can be hold by this ResourceHolder.
 
     protected final Class[] resourceClasses;

    
    
Construct resource holder.
 
     public ResourceHolder(Class[] resourceClasses) {
         if(resourceClasses == null || resourceClasses.length == 0)
             throw new IllegalArgumentException();
         
         this. = resourceClasses;
     }
    
    
    
Setter for resource.
 
     public void setResource(DataObject resource) {
         if (resource == null) {
             this. = null;
             return;
         }
 
         Class clazz = resource.getClass();
 
         // Check if the class of parameter is valid for this ResourceHolder.
         if(!Arrays.asList().contains(clazz))
             throw new IllegalArgumentException();
 
         if(!resource.equals(this.))
             this. = resource;
     }
    
    
Getter for resource.
 
     public DataObject getResource() {
        return ;
    }

    
Getter for supported resourceClasses.
    public Class[] getResourceClasses() {
        return ;
    }
    
    
Gets all keys which are stored in underlying resource object.
    public abstract String[] getAllKeys();
    
    
Gets value for specified key.

Returns:
value for key or null if such key os not stored in resource
    public abstract String getValueForKey(String key);
    
    
Gets comment for specified key.

Returns:
value for key or null if such key os not stored in resource
    public abstract String getCommentForKey(String key);
    
    
Adds new property (key-value pair) to resource object. Behave according to settings.
    public void addProperty(Object keyObject valueString comment) {
        boolean overwriteValues = I18nUtil.getOptions().isReplaceResourceValue();
        addProperty(keyvaluecommentoverwriteValues);
    }
    
    
Adds new property (key-value pair) to resource object, with forcing of reset the value for existing key in all locales.
    public abstract void addProperty(Object keyObject valueString commentboolean forceNewValue);
    
    
Gets template for reosurce data object. Used by instatianing.

Parameters:
clazz Class of object to instantaniate. Have to be one of supported classes.
    public final DataObject getTemplate(Class clazzthrows IOException {
        if(!Arrays.asList().contains(clazz))
            throw new IllegalArgumentException();
        
        return createTemplate(clazz);
    }
    
    
Creates template of type clazz.
    protected abstract DataObject createTemplate(Class clazzthrows IOException;
    @Override
    public String toString() {
        return super.toString() +
               "[resource=" +
               String.valueOf() +
               ", resourceClasses=" +
               Arrays.toString() + ']'// NOI18N
    }
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