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• ModelKeyProvider.java

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com.sencha.gxt.data.shared.ModelKeyProvider Maven / Gradle / Ivy

/**
 * Ext GWT 3.0.0-beta2 - Ext for GWT
 * Copyright(c) 2007-2011, Sencha, Inc.
 * [email protected]
 *
 * http://sencha.com/license
 */
package com.sencha.gxt.data.shared;

import com.google.gwt.view.client.ProvidesKey;

/**
 * ModelKeyProviders are responsible for returning a unique key for a given
 * model.
 * 
 * @param  the model type
 */
public interface ModelKeyProvider extends ProvidesKey {

  /**
   * Gets a key value that maps to this object. Keys must be consistent and
   * unique for a given model, as a database primary key would be used.
   */
  String getKey(T item);
}