1 /* 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 package org.apache.hadoop.hbase.rest; 21 22 import java.io.IOException; 23 import java.util.Iterator; 24 25 import org.apache.hadoop.hbase.classification.InterfaceAudience; 26 import org.apache.hadoop.hbase.Cell; 27 import org.apache.hadoop.hbase.filter.Filter; 28 import org.apache.hadoop.hbase.rest.model.ScannerModel; 29 30 @InterfaceAudience.Private 31 public abstract class ResultGenerator implements Iterator<Cell> { 32 fromRowSpec(final String table, final RowSpec rowspec, final Filter filter, final boolean cacheBlocks)33 public static ResultGenerator fromRowSpec(final String table, 34 final RowSpec rowspec, final Filter filter, final boolean cacheBlocks) 35 throws IOException { 36 if (rowspec.isSingleRow()) { 37 return new RowResultGenerator(table, rowspec, filter, cacheBlocks); 38 } else { 39 return new ScannerResultGenerator(table, rowspec, filter, cacheBlocks); 40 } 41 } 42 buildFilter(final String filter)43 public static Filter buildFilter(final String filter) throws Exception { 44 return ScannerModel.buildFilter(filter); 45 } 46 putBack(Cell kv)47 public abstract void putBack(Cell kv); 48 close()49 public abstract void close(); 50 } 51