PagedDataProvider.java

/*
 * Copyright 2011 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;

import com.google.gwt.event.shared.HandlerRegistration;


/**
 * A {@link DataProvider} that supports pagination
 * 
 * @author Thiago da Rosa de Bustamante
 */
public interface PagedDataProvider<T> extends DataProvider<T>
{
	void firstOnPage();

	boolean hasNextPage();
	boolean nextPage();
	
	boolean hasPreviousPage();
	boolean previousPage();
	boolean isPageLoaded(int page);
	
	int getPageSize();
	void setPageSize(int pageSize);

	int getCurrentPageSize();
	int getCurrentPage();
	int getCurrentPageStartRecord();
	
	HandlerRegistration addPageLoadedHandler(PageLoadedHandler handler);
	HandlerRegistration addPageRequestedHandler(PageRequestedHandler handler);

}