IndexUpdateTransaction.java

/**********************************************************************************
 * $URL: https://source.sakaiproject.org/svn/search/trunk/search-impl/impl/src/java/org/sakaiproject/search/indexer/api/IndexUpdateTransaction.java $
 * $Id: IndexUpdateTransaction.java 105078 2012-02-24 23:00:38Z ottenhoff@longsight.com $
 ***********************************************************************************
 *
 * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 The Sakai Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.search.indexer.api;

import java.util.Iterator;
import java.util.List;

import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.sakaiproject.search.model.SearchBuilderItem;
import org.sakaiproject.search.transaction.api.IndexTransaction;
import org.sakaiproject.search.transaction.api.IndexTransactionException;

/**
 * This represents a transactional index operation
 * 
 * @author ieb
 */
public interface IndexUpdateTransaction extends IndexTransaction
{

	/**
	 * Get the index writer associated with this transaction
	 * 
	 * @return
	 * @throws IndexTransactionException
	 *         if the transaction is not open
	 */
	IndexWriter getIndexWriter() throws IndexTransactionException;
	/**
	 * @return
	 */
	IndexReader getIndexReader() throws IndexTransactionException;

	/**
	 * Get a list of add items associated with this transaction
	 * 
	 * @return
	 * @throws IndexTransactionException
	 *         if the transaction is not open
	 */
	Iterator<SearchBuilderItem> lockedItemIterator() throws IndexTransactionException;

	/**
	 * @return
	 */
	String getTempIndex();

	/**
	 * The list of items
	 * 
	 * @return
	 */
	List<SearchBuilderItem> getItems();

	/**
	 * Sets the items for the tansaction if the transaction is not open
	 * 
	 * @param items
	 * @throws IndexTransactionException
	 *         if the items has already been set, or the transaction is not open
	 */
	void setItems(List<SearchBuilderItem> items) throws IndexTransactionException;


}