1 /* 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 package org.apache.hadoop.hbase; 17 18 import org.apache.hadoop.classification.InterfaceAudience; 19 import org.apache.hadoop.classification.InterfaceStability; 20 import org.apache.hadoop.conf.Configuration; 21 import org.apache.hadoop.hbase.client.HTableInterface; 22 23 import java.io.IOException; 24 25 /** 26 * Coprocessor environment state. 27 */ 28 @InterfaceAudience.Public 29 @InterfaceStability.Evolving 30 public interface CoprocessorEnvironment { 31 32 /** @return the Coprocessor interface version */ 33 public int getVersion(); 34 35 /** @return the HBase version as a string (e.g. "0.21.0") */ 36 public String getHBaseVersion(); 37 38 /** @return the loaded coprocessor instance */ 39 public Coprocessor getInstance(); 40 41 /** @return the priority assigned to the loaded coprocessor */ 42 public int getPriority(); 43 44 /** @return the load sequence number */ 45 public int getLoadSequence(); 46 47 /** @return the configuration */ 48 public Configuration getConfiguration(); 49 50 /** 51 * @return an interface for accessing the given table 52 * @throws IOException 53 */ 54 public HTableInterface getTable(byte[] tableName) throws IOException; 55 }