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Java > Open Source Codes > org > eclipse > core > internal > indexing > AbstractPagePolicy


1 /*******************************************************************************
2  * Copyright (c) 2000, 2005 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.core.internal.indexing;
12
13 public abstract class AbstractPagePolicy {
14
15     /**
16      * Returns a page given a page number, a buffer, and the page store. The
17      * buffer should be copied in the implementations as it may be reused later.
18      * The buffer is extended or truncated to the page size during this copy.
19      * Both the buffer contents and the page number can be used to determine
20      * the type of page to create.
21      */
22     public abstract Page createPage(int pageNumber, byte[] buffer, PageStore pageStore);
23
24 }
25
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