MeasurableProvider.java

/*
 * Copyright 2014 cruxframework.org.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package org.cruxframework.crux.core.client.dataprovider;

/**
 * A {@link DataProvider} that can be measured.
 * @author Thiago da Rosa de Bustamante
 */
public interface MeasurableProvider<E> extends DataProvider<E>
{
	/**
	 * Retrieve the size of the {@link DataProvider} set of data 
	 * @return
	 */
	int size();
	
	/**
	 * Points DataProvider to the last record 
	 */
	void last();
}